Bugs
Card | Bug | Severity | Read More | |
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Cavern of Souls | When casting a spell, if there is any mana already in the player's pool, the most recently produced colored mana is automatically applied to the spell first. For example, if a player taps a Cavern of Souls (naming Human), then an Island, then casts Delver of Secrets, the blue mana applied to the Delver's mana cost will be that from the Island. If the player tapped the Island, then the Cavern, the Cavern's mana would be applied to the spell, and it would be appropriately uncounterable. | Unclassified |
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Platinum Emperion | If you control Platinum Emperion you cannot even pay 0 life for costs. | Disadvantageous |
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Gaddock Teeg | Gaddock Teeg incorrectly does not allow cards with converted mana cost 4 or greater to be spliced onto other cards. | Advantageous |
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Karn Liberated | If Karn Liberated restarts the game, there is a display issue with shocklands such as Steam Vents. | Unclassified |
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Karn Liberated | Restarting the game with Karn Liberated does not remove the City's Blessing. | Unclassified |
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Myr Servitor | If Lazav, Multifarious is a copy of another creature that references other copies of itself such as Myr Servitor, it will incorrectly refer to other copies of Lazav. | Unclassified |
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Reviving Vapors | Reviving Vapors doesn't cause you to gain life. | Disadvantageous |
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Verdant Eidolon | There is a known issue with Verdant Eidolon creating too much mana. | Unclassified |
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Fiery Temper | Some cards with the madness ability do not display the correct reminder text. Notably, this includes Fiery Temper. | Unclassified |
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Shirei, Shizo's Caretaker | If control of Grave Betrayal or Shirei, Shizo's Caretaker changes between a creature dying and the delayed EOT trigger going on the stack, the new controller gets the creature rather than the player who created the delayed trigger. | Disadvantageous |
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Buried Alive | The order of cards put into the graveyard by Buried Alive is random | Disadvantageous |
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Daybreak Coronet | Daybreak Coronet can be cast targeting a creature with only an equipment attached to it. | Advantageous |
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Containment Priest | If Containment Priest and any other creatures (not cast) ETB at the same time, all the other creatures get exiled | Disadvantageous |
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Containment Priest | Containment Priest exiles Theros Gods even when their devotion isn't met. | Advantageous |
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Jace, Cunning Castaway | Illusion tokens created by Jace, Cunning Castaway have redundant blue text. | Graphical |
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Lazav, the Multifarious | If Lazav, Multifarious is a copy of another creature that references other copies of itself such as Myr Servitor, it will incorrectly refer to other copies of Lazav. | Unclassified |
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Steam Vents | If Karn Liberated restarts the game, there is a display issue with shocklands such as Steam Vents. | Unclassified |
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Discovery // Dispersal | Dispersal of Discovery // Dispersal ignores the converted mana cost of double-faced lands such as Azcanta, the Sunken Ruin. | Unclassified |
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Goblin Electromancer | With two copies of Goblin Electromancer in play, splice costs are incorrectly calculated. | Unclassified |
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Crackling Drake | Creatures with variable power and toughness such as Crackling Drake are not correctly updated in the reveal zone. | Unclassified |
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Walking Ballista | If a player attempts to cast Walking Ballista with a cost reduction effect, they are initially prompted to pay for X=127. They can adjust this to the correct number. | Unclassified |
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Grafdigger's Cage | If you manifest a creature with Grafdigger's Cage in play, it will be exiled. | Disadvantageous |
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Mimic Vat | Mimic Vat will return previously exiled card to the graveyard incorrectly if you say 'Yes' to the trigger when the target has been exiled | Advantageous |
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Winds of Rath | Spells and non-static abilities that care whether a permanent is enchanted, will see equipped permanent as enchanted | Advantageous |
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Terminus | Cards with the miracle mechanic such as Terminus incorrectly retain their miracle blue text reminder when they are not cast. | Unclassified |
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Entreat the Angels | When Entreat the Angels is on the stack with 0 chosen for X, the blue text that typically indicates the value of X does not appear. | Graphical |
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Vaevictis Asmadi, the Dire | The triggered ability of Vaevictis Asmadi, the Dire can sometimes completely remove cards from the game. | Disadvantageous |
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Blade of Selves | There is an issue when creating multiple tokens from the myriad ability on cards such as Blade of Selves. | Unclassified |
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Skullbriar, the Walking Grave | Skullbriar, the Walking Grave can cause the client to crash if it moves to the command zone with +1/+1 counters. | Unclassified |
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Relic Crush | Relic Crush can target the same permanent twice. | Unclassified |
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Hunted Dragon | The tokens created by Hunted Dragon have Banding in addition to first strike | Graphical |
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Spell Crumple | There are known issues with giving flashback to a spell that is put on the bottom of a library as it resolves. | Unclassified |
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Fact or Fiction | Fact or Fiction chooses an opponent before revealing in multiplayer | Disadvantageous |
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Doubling Season | Doubling Season incorrectly doubles lore counters on sagas placed during the draw step. | Advantageous |
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Muldrotha, the Gravetide | Muldrotha, the Gravetide does not allow you to cast cards from your graveyard with As Foretold. | Disadvantageous |
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Merfolk Trickster | Merfolk Trickster doesn't remove abilities granted to the targeted creature by a different source. | Disadvantageous |
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Grenzo, Dungeon Warden | Abilities that generate replacement effects preventing specific cards from being put into graveyards (such as those found on Progenitus or Blightsteel Colossus) do not function properly while resolving Grenzo, Dungeon Warden's activated ability. | Unclassified |
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Animar, Soul of Elements | Animar, Soul of Elements can cause slowdown with an excessive amount of counters on it. | Unclassified |
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Rancor | If Rancor falls off a land that was a creature temporarily that turn, it will incorrectly trigger during the next turn's upkeep. | Advantageous |
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Courser of Kruphix | Courser of Kruphix incorrectly shows the top card with shocklands | Advantageous |
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Zada, Hedron Grinder | Abilities that trigger from a permanent becoming the target of a spell or ability (such as that of Silverfur Partisan) are not triggered by copies of spells automatically put onto the stack. For example: if a player controls Zada, Hedron Grinder and casts a spell on Zada, when Zada's triggered ability resolves, the player will be prompted to choose targets for the copies made by Zada. If the player chooses targets for the copies individually, Silverfur Partisan's ability will trigger correctly. If the player clicks OK to automatically choose the targets, the Partisan's ability won't trigger. | Unclassified |
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Vesuvan Shapeshifter | If Vesuvan Shapeshifter copies a Megamorph creature with it's face-up ability, it will retain the Megamorph ability in later turns, gaining +1/+1 counters. | Advantageous |
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Mutiny | Mutiny doesn't have clear targeting information. Workaround: the game log displays targets matching the order written on the card, and will highlight the appropriate creature when its name is hovered over with the mouse. | Unclassified |
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Gisela, the Broken Blade | There is an issue adding meld cards to your deck | Disadvantageous |
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Garruk Relentless | Only the front sides of Archangel Avacyn and Garruk, the Veil-Cursed are taken into account for Commander color identity. | Disadvantageous |
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Garruk Relentless | The art for the wolf token created by Garruk, the Veil-Cursed is incorrect. | Graphical |
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Bruna, the Fading Light | Brisela, Voice of Nightmares incorrectly has a converted mana cost of 13. | Unclassified |
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Archangel Avacyn | Only the front sides of Archangel Avacyn and Garruk, the Veil-Cursed are taken into account for Commander color identity. | Disadvantageous |
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Primal Amulet | If you cast a card you don't own with Primal Wellspring, the copy is cast by the card's owner. | Disadvantageous |
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Search for Azcanta | Dispersal of Discovery // Dispersal ignores the converted mana cost of double-faced lands such as Azcanta, the Sunken Ruin. | Unclassified |
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Rosheen Meanderer | Rosheen Meanderer is unable to contribute mana to spells that ask an opponent to pay X, such as Condescend. | Disadvantageous |
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Wall of Roots | The mana abilities of Wall of Roots and Kozilek's Translator cannot be activated while paying the mana cost of a spell or ability. Players can still activate these abilities at any time that player has priority. | Disadvantageous |
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Phantom Tiger | If Phantom Tiger dies in combat, blue text abilities it had been granted do not apply to that combat's damage. | Disadvantageous |
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Fireball | Fireball cannot be cast with 0 targets when X = 0. | Disadvantageous |
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Elesh Norn, Grand Cenobite | If Containment Priest and Elesh Norn, Grand Cenobite are both Exhumed, Elesh Norn, Grand Cenobite is exiled and her effect lasts indefinitely. | Advantageous |
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Austere Command | Austere Command does not respect 711.4b and treats the converted mana cost of the back side of double-faced permanents as 0. | Disadvantageous |
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Gishath, Sun's Avatar | Gishath, Sun's Avatar does not allow you to decline to put a Dinosaur creature into play if you have one in your hand. | Disadvantageous |
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Sword-Point Diplomacy | A player can pay more life than they have with Sword-Point Diplomacy, but they will still most likely lose the game. | Unclassified |
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Sword-Point Diplomacy | Sword-Point Diplomacy is buggy in multiplayer | Advantageous |
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Sanguine Sacrament | There are known issues with giving flashback to a spell that is put on the bottom of a library as it resolves. | Unclassified |
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Eldrazi Spawn | Eldrazi Spawn and Scions created by cards from the Battle for Zendikar and Rise of the Eldrazi sets display "Add {1} to your mana pool" instead of "Add {C} to your mana pool" upon zoom. As this change in template was not a functional change, these tokens continue to function correctly. | Unclassified |
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Eldrazi Spawn | Eldrazi Spawn and Scions created by cards from the Battle for Zendikar and Rise of the Eldrazi sets display "Add {1} to your mana pool" instead of "Add {C} to your mana pool" | Graphical |
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Door of Destinies | If a permanent enters the battlefield as a copy of a permanent that had a choice made as it entered (such as Door of Destinies or Painter's Servant), the copy correctly allows the controller to make a new choice, but the abilities of the copy that refer to that choice do not function correctly. | Disadvantageous |
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Nazahn, Revered Bladesmith | Nazahn, Revered Bladesmith will sometimes give the equipment it finds to another player's hand. | Disadvantageous |
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Kess, Dissident Mage | Kess Dissident Mage's ability allows you to cast spells during other players' turns and to cast spells with no mana costs | Advantageous |
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Hollow One | Hollow One's cost reduction doesn't consider split cards that are discarded | Disadvantageous |
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God-Pharaoh's Gift | The Scarab God and God-Pharaoh's Gift do not respect 706.9d and replaces characteristic defining abilities when creating copies of creatures. | Unclassified |
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The Scarab God | The Scarab God and God-Pharaoh's Gift do not respect 706.9d and replaces characteristic defining abilities when creating copies of creatures. | Unclassified |
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Torment of Hailfire | The undo function works incorrectly with Torment of Hailfire. | Disadvantageous |
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Sunscourge Champion | Sunscourge Champion will cause you to lose life if it has negative power when its trigger resolves. | Disadvantageous |
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Solemnity | Solemnity does not prevent a player from paying tribute from cards such as Oracle of Bones. | Unclassified |
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Overwhelming Splendor | Creatures with ascend can still grant the City's Blessing with Overwhelming Splendor on the battlefield. | Disadvantageous |
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Gideon Jura | Certain effect shields, such as the indestructible one created by Gideon Jura, sometimes display slightly longer than they should. | Unclassified |
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Icefall Regent | If you target an [Icefall Regent] with a fused split card, you must pay {2} for each side of the split card, for a total of {4} | Advantageous |
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Compulsive Research | Dredging rather than drawing can let you avoid discarding | Advantageous |
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Terastodon | If some (not all) of Terastodon's targets are indestructible permanent(s), it will incorrectly create elephant token(s) for the owner of those permanents. | Advantageous |
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Cut // Ribbons | Split cards such as Cut // Ribbons are reported as 3 cards in the chat log. | Unclassified |
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Cut // Ribbons | Split cards such as Cut // Ribbons are reported as 3 cards in the chat log. | Unclassified |
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Rags // Riches | If a commander is chosen for Riches in Rags // Riches, no other opponents need to choose a creature. | Disadvantageous |
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Commit // Memory | If you cast Commit // Memory targeting another Commit // Memory, a rare issue may occur that causes it to not be placed correctly within the library. | Disadvantageous |
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Commit // Memory | If you cast Commit // Memory targeting another Commit // Memory, a rare issue may occur that causes it to not be placed correctly within the library. | Disadvantageous |
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Harsh Mentor | Harsh Mentor's triggered ability also affects abilities activated from creatures in the graveyard. | Advantageous |
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Vizier of Many Faces | Vizier of Many Faces keeps its abilities when an opponent controls Overwhelming Splendor. | Advantageous |
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Naga Oracle | Some spells that let you look at the top cards of your library and choose multiple cards one-by-one to send to the graveyard will incorrectly display the visual order of the chosen cards in the graveyard. | Graphical |
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As Foretold | As Foretold does not apply to cards able to be cast due to Abandoned Sarcophagus. | Disadvantageous |
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Gideon's Intervention | Casting a second copy of Gideon's Intervention causes the first to become become partially non-functional, allowing the named card to deal damage | Disadvantageous |
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Secret Salvage | Secret Salvage does not add the cards found from the library to the revealed zone. | Graphical |
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Fortune's Favor | Fortune's Favor does not indicate which pile is face up | Graphical |
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Krond the Dawn-Clad | Spells and non-static abilities that care whether a permanent is enchanted, will see equipped permanent as enchanted | Advantageous |
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Dreampod Druid | Spells and non-static abilities that care whether a permanent is enchanted, will see equipped permanent as enchanted | Advantageous |
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Kozilek, the Great Distortion | When a player casts Kozilek, the Great Distortion, its triggered ability incorrectly triggers if the casting player has seven or more cards in hand. Upon resolution, the player will not draw cards if he or she already has seven or more cards in hand. | Unclassified |
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Reflecting Pool | Reflecting Pool does not get the ability to add any color of mana to your mana pool from Crumbling Vestige. | Disadvantageous |
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Kaya, Ghost Assassin | If Kaya, Ghost Assassin exiles a commander with the first ability, and its controller chooses not to replace exile with the command zone, the commander will still go to the command zone until Kaya returns it. | Unconfirmed |
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Custodi Lich | Custodi Lich's sacrifice trigger happens when you create the monarchy, and whenever an opponent becomes the monarch. | Advantageous |
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Windbrisk Heights | Cards exiled by the triggered abilities of a number of cards which exile a card from their controller's library appear to be coming from the opponent's library instead. This affects cards such as Bomat Courier, Windbrisk Heights, and other similar cards. This is a display issue only. | Unclassified |
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Sunforger | The activated ability of Sunforger does not shuffle the library. | Disadvantageous |
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Whims of the Fates | Whims of the Fates Causes client crashes | Game Breaking |
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Identity Thief | Identity Thief Restarts the game when attempting to copy a creature. | Game Breaking |
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Fleetwheel Cruiser | Fleetwheel Cruiser does not correctly display changes in power and toughness with Tempered Steel. | Graphical |
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Bomat Courier | Cards exiled by the triggered abilities of a number of cards which exile a card from their controller's library appear to be coming from the opponent's library instead. This affects cards such as Bomat Courier, Windbrisk Heights, and other similar cards. This is a display issue only. | Unclassified |
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Animation Module | Animation Module does not trigger off of cards with unleash such as Gore-House Chainwalker. | Disadvantageous |
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Lost Legacy | Cards that allow a player to search their opponent's library and remove a named card, such as Lost Legacy, are not allowing the player to remove named split cards. | Unclassified |
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Vedalken Shackles | Vedalken Shackles interacts incorrectly with creatures that enter the battlefield tapped and attacking. | Unclassified |
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Painter's Servant | If a permanent enters the battlefield as a copy of a permanent that had a choice made as it entered (such as Door of Destinies or Painter's Servant), the copy correctly allows the controller to make a new choice, but the abilities of the copy that refer to that choice do not function correctly. | Disadvantageous |
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Mire's Toll | When only some cards from an opponent's hand are revealed, they do not appear in the revealed zone | Disadvantageous |
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Hanweir Battlements | There is an issue adding meld cards to your deck | Disadvantageous |
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Tangleclaw Werewolf | Fibrous Entangler (Flipped Tangleclaw Werewolf) tries to force players who it is not attacking in multiplayer to block it, locking the game as they cannot make a legal block | Game Breaking |
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Nahiri's Wrath | The prompt box of Nahiri's Wrath displays incorrect text. | Unclassified |
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Nahiri's Wrath | The prompt box for the additional cost of Nahiri's Wrath contains a grammatical error when selecting a single target. | Unclassified |
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Graf Rats | There is an issue adding meld cards to your deck | Disadvantageous |
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Contingency Plan | Some spells that let you look at the top cards of your library and choose multiple cards one-by-one to send to the graveyard will incorrectly display the visual order of the chosen cards in the graveyard. | Graphical |
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Emrakul, the Promised End | Casting two copies of Emrakul, the Promised End does not give the opponent two extra turns. | Unclassified |
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Distended Mindbender | When only some cards from an opponent's hand are revealed, they do not appear in the revealed zone | Disadvantageous |
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Sigarda, Heron's Grace | Sigarda, Heron's Grace doesn't grant you hexproof | Disadvantageous |
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The Gitrog Monster | Non-land permanents that have become lands due to an enchantment, such as Imprisoned in the Moon, do not trigger the third ability of The Gitrog Monster when put into the graveyard | Disadvantageous |
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Silverfur Partisan | Abilities that trigger from a permanent becoming the target of a spell or ability (such as that of Silverfur Partisan) are not triggered by copies of spells automatically put onto the stack. For example: if a player controls Zada, Hedron Grinder and casts a spell on Zada, when Zada's triggered ability resolves, the player will be prompted to choose targets for the copies made by Zada. If the player chooses targets for the copies individually, Silverfur Partisan's ability will trigger correctly. If the player clicks OK to automatically choose the targets, the Partisan's ability won't trigger. | Unclassified |
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Silverfur Partisan | Abilities that trigger from a permanent becoming the target of a spell or ability (such as that of Silverfur Partisan) are not triggered by copies of spells automatically put onto the stack. For example: if a player controls Zada, Hedron Grinder and casts a spell on Zada, when Zada's triggered ability resolves, the player will be prompted to choose targets for the copies made by Zada. If the player chooses targets for the copies individually, Silverfur Partisan's ability will trigger correctly. If the player clicks OK to automatically choose the targets, the Partisan's ability won't trigger. | Unclassified |
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Seasons Past | There are known issues with giving flashback to a spell that is put on the bottom of a library as it resolves. | Unclassified |
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Fork in the Road | Fork in the Road fails to display the destination zones of the chosen lands in the game log. | Unclassified |
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Harness the Storm | Harness the Storm Doesn't trigger when casting split cards. | Disadvantageous |
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Heir of Falkenrath | If Heir of Falkenrath's ability is used to transform it into Heir to the Night, then it transforms back into Heir of Falkenrath in the same turn in some way, its activated ability can be used again. | Advantageous |
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Ever After | Ever After resolves immediately upon selection of the second target instead of allowing the player to click a "Done" button. | Unclassified |
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Ever After | There are known issues with giving flashback to a spell that is put on the bottom of a library as it resolves. | Unclassified |
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Odric, Lunarch Marshal | Odric, Lunarch Marshal's triggered ability ignores the hexproof ability on a creature if it only has it temporarily. | Unclassified |
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Reflector Mage | If a player casts Reflector Mage targeting a creature they own, and then in the following turn their opponent casts Reflector Mage, they are able to immediately recast that creature. | Advantageous |
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Oath of Nissa | If a player makes a selection, then reverses that selection with the "undo" keyboard shortcut (default: CTRL+Z), the game log will sometimes incorrectly show both cards the player selected. Notably, this includes Oath of Nissa and similar effects that ask a player to put one of a small number of cards into their hand. | Unclassified |
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Bonds of Mortality | Bonds of Mortality gives everything hexproof? | Disadvantageous |
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Kalitas, Traitor of Ghet | If you control Kalitas, Traitor of Ghet, you create a zombie creature token when a creature you control owned by an opponent dies. | Unclassified |
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Kozilek's Translator | The mana abilities of Wall of Roots and Kozilek's Translator cannot be activated while paying the mana cost of a spell or ability. Players can still activate these abilities at any time that player has priority. | Disadvantageous |
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Deceiver of Form | If Deceiver of Form's triggered ability turns creatures into copies of a legendary creature, the legend rule fails to apply to the copies. | Advantageous |
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Flamerush Rider | The token created by Flamerush Rider does not enter the battlefield tapped and attacking. | Unclassified |
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Synthetic Destiny | Synthetic Destiny and Mass Polymorph do not take commanders into account when determining the number of creatures to reveal. | Disadvantageous |
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Mirror Match | Mirror Match Non-creature permanents that become creatures temporarily are incorrectly considered blocked by the token copies | Advantageous |
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Broodbirth Viper | Broodbirth Viper's token(s) don't get exiled at the end of combat | Advantageous |
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Ulamog, the Ceaseless Hunger | Cards that are exiled by Ulamog, the Ceaseless Hunger incorrectly show association arrows while in the Exiled Zone. | Graphical |
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Bonded Construct | Under rare circumstances, a player who controls two creatures that can't attack alone (such as Bonded Construct) but must attack with one of them will be able to attack with only that creature rather than being required to attack with both. | Unclassified |
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The Great Aurora | The Great Aurora shuffles tokens into your library that you can then draw. | Unclassified |
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Necromantic Summons | The spell mastery ability of Necromantic Summons does not function. | Unclassified |
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Profane Command | Profane Command If a player gains shroud in response to Profane Command, the first mode will still resolve / choosing to give creatures fear when you control no creatures prompts a large number. | Advantageous |
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Cursed Scroll | Cursed Scroll does not deal damage if choosing to click the card in your hand, rather than typing the name. | Graphical |
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Atarka's Command | Atarka's Command's first activated ability doesn't appear in the Effect zone after it resolves. | Unclassified |
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Collected Company | If metallic mimic and a creature of the chosen type enter the battlefield through collected company, the system will incorrectly give that creature a +1/+1 counter | Advantageous |
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Collected Company | Collected Company does not allow you to put fewer than the maximum number of creatures onto the battlefield. | Disadvantageous |
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Crypt of Agadeem | Crypt of Agadeem does not make mana with its second ability. | Unclassified |
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Infinite Reflection | Infinite Reflection All creatures become copies, not just ones you control. | Advantageous |
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Angelic Field Marshal | Angelic Field Marshal still grants a bonus to your commander when an opponent gains control of it. | Advantageous |
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Mishra's Workshop | When there are floating generic mana and restricted mana (such as [Mishra's Workshop] mana) that are same color (or same colorless), MTGO will always use generic mana first before using the restricted mana. Workaround: don't float the generic mana if you want to use the restricted mana first | Disadvantageous |
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Hada Freeblade | Certain cards, such as Hada Freeblade, do not display a legality error for the Pauper format in the collection scene. | Graphical |
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City of Brass | Drain Power does not function correctly when the targeted player controls City of Brass. | Unclassified |
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Taigam's Scheming | Some spells that let you look at the top cards of your library and choose multiple cards one-by-one to send to the graveyard will incorrectly display the visual order of the chosen cards in the graveyard. | Graphical |
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Phyrexian Revoker | Phyrexian Revoker can name the Momir Vig, Simic Visionary Avatar. | Unclassified |
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Phyrexian Revoker | If a card such as Phyrexian Revoker that asks you to name a card is manifested, you are asked to name the card as it enters the battlefield. | Unclassified |
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Yisan, the Wanderer Bard | If all of Yisan, the Wanderer Bard's verse counters are removed in response to its ability, you are able to search your library for any creature, regardless of CMC. | Advantageous |
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Undergrowth Scavenger | Creatures that enter the battlefield with counters based on the number of creatures in the graveyard (for example, Undergrowth Scavenger) do not count themselves if they are put onto the battlefield directly from the graveyard. | Unclassified |
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Life's Legacy | Cards cast with conspire that require a player to sacrifice a creature as an additional cost to cast, such as Life's Legacy and Momentous Fall, incorrectly look at the power and toughness of the last creature clicked for conspire. | Disadvantageous |
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Circle of Flame | Cards that are only common in the PRM set can be added to Pauper decks, but you can't join a Pauper match with decks that have those cards | Disadvantageous |
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Xathrid Slyblade | Xathrid Slyblade does not lose hexproof when its ability is activated. | Advantageous |
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Lurking Evil | Lurking Evil makes you pay life equal to half of your opponent's life total | Advantageous |
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Tromokratis | Tromokratis can cause the game the game to soft-lock in multiplayer games | Game Breaking |
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Keranos, God of Storms | Keranos, God of Storms does not trigger when its controller draws a card. | Unclassified |
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Athreos, God of Passage | Athreos, God of Passage does not associate its triggers with specific creatures. | Graphical |
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Feast of Dreams | Spells and non-static abilities that care whether a permanent is enchanted, will see equipped permanent as enchanted | Advantageous |
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Jace, Architect of Thought | The first ability of Jace, Architect of Thought is not creating an effect shield. | Unclassified |
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Oracle of Bones | Solemnity does not prevent a player from paying tribute from cards such as Oracle of Bones. | Unclassified |
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Floodtide Serpent | Instead of bouncing an enchantment, attacking with Floodtide Serpent shows you all zones. | Advantageous |
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Pyxis of Pandemonium | When multiple Pyxis of Pandemonium are in the battlefield, there is no indicator how many cards are exiled by each Pyxis, or which cards are exiled by each Pyxis | Graphical |
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Disciple of Phenax | When only some cards from an opponent's hand are revealed, they do not appear in the revealed zone | Disadvantageous |
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Progenitus | Abilities that generate replacement effects preventing specific cards from being put into graveyards (such as those found on Progenitus or Blightsteel Colossus) do not function properly while resolving Grenzo, Dungeon Warden's activated ability. | Unclassified |
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Tooth and Nail | Using the undo function with an entwined Tooth and Nail does not allow you to put two creatures onto the battlefield. | Unclassified |
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Thieving Sprite | When only some cards from an opponent's hand are revealed, they do not appear in the revealed zone | Disadvantageous |
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Death Cloud | Death Cloud causes Soft Lock after Life Loss step occurs | Game Breaking |
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Kira, Great Glass-Spinner | Kira, Great-Glass Spinner's ability does not grant the appropriate triggered ability. | Unclassified |
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Careful Consideration | Copy spells that care about being cast during a main phase such as Careful Consideration sometimes do not confer the main phase bonus. | Unclassified |
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Sorin, Lord of Innistrad | If Sorin, Lord of Innistrad somehow becomes a creature, he cannot target himself with his ultimate ability. | Unclassified |
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Sylvan Primordial | Casting Sylvan Primordial causes the game to be soft-locked in a multiplayer game if there are no legal targets for one player. | Game Breaking |
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Structural Collapse | Structural Collapse doesn't cause target to sacrifice either an artifact or land. | Disadvantageous |
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Zodiac Rooster | Cards that are only common in the PRM set can be added to Pauper decks, but you can't join a Pauper match with decks that have those cards | Disadvantageous |
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Headless Horseman | Cards that are only common in the PRM set can be added to Pauper decks, but you can't join a Pauper match with decks that have those cards | Disadvantageous |
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Grave Betrayal | If control of Grave Betrayal or Shirei, Shizo's Caretaker changes between a creature dying and the delayed EOT trigger going on the stack, the new controller gets the creature rather than the player who created the delayed trigger. | Disadvantageous |
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Vesuva | If Vesuva copies a land with a static ability and then is later turned into a basic land (perhaps by a Blood Moon or Spreading Seas), that static ability will not be removed. Triggered and activated abilities are correctly removed. | Advantageous |
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Mindclaw Shaman | You are unable to cast split cards with Mindclaw Shaman's ability. | Disadvantageous |
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Defy Death | If Defy Death targets an Angel, it does not put +1/+1 counters on it. | Unclassified |
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Koth of the Hammer | When controlling the Emblem of Koth of the Hammer, lands do not display the blue text they have. | Graphical |
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Kruin Outlaw | If a Werewolf such as Kruin Outlaw copies another creature and then would transform, it incorrectly does not transform. | Unclassified |
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Tempered Steel | Fleetwheel Cruiser does not correctly display changes in power and toughness with Tempered Steel. | Graphical |
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Pollen Lullaby | Pollen Lullaby does not display the rules text stating that the creature doesn't untap. | Unclassified |
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Grand Architect | Pili-Pala can incorrectly pay for its own untap ability by tapping to use the ability granted by Grand Architect. | Advantageous |
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Harm's Way | Harm's Way cannot redirect combat damage to planeswalkers. | Unclassified |
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Knowledge Pool | Knowledge Pool With multiple Knowledge Pools in play, casting a spell from hand lets you cast a spell from each Pool. | Advantageous |
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Blightsteel Colossus | Abilities that generate replacement effects preventing specific cards from being put into graveyards (such as those found on Progenitus or Blightsteel Colossus) do not function properly while resolving Grenzo, Dungeon Warden's activated ability. | Unclassified |
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Primitive Justice | Primitive Justice will either not cast/restart the game with a single target. | Game Breaking |
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Lich | Lich If you cannot sacrifice enough permanents, the game restarts | Game Breaking |
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Drain Power | Drain Power does not function correctly when the targeted player controls City of Brass. | Unclassified |
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Island Sanctuary | Island Sanctuary's replacement effect is available if you draw a card during an opponents draw step | Advantageous |
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Semblance Anvil | Semblance Anvil imprinting a split card does not reduce any casting costs. | Disadvantageous |
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Mass Polymorph | Synthetic Destiny and Mass Polymorph do not take commanders into account when determining the number of creatures to reveal. | Disadvantageous |
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Tajuru Preserver | The chat log displays incorrect text when a player is to sacrifice permanents but cannot by controlling a card such as Tajuru Preserver. | Unclassified |
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Momentous Fall | Cards cast with conspire that require a player to sacrifice a creature as an additional cost to cast, such as Life's Legacy and Momentous Fall, incorrectly look at the power and toughness of the last creature clicked for conspire. | Disadvantageous |
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Umbra Mystic | Enchantments granted Totem Armor by Umbra Mystic don't become sacrificed | Advantageous |
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Amulet of Vigor | If a player controls two or more Amulet of Vigors, Magic Online will automatically stack all triggers from the Amulets together, rather than allowing players to choose how to stack their triggers. | Unclassified |
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Bala Ged Thief | When only some cards from an opponent's hand are revealed, they do not appear in the revealed zone | Disadvantageous |
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Gauntlets of Chaos | Gauntlets of Chaos allows you to target illegal targets. | Unclassified |
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Ramses Overdark | Spells and non-static abilities that care whether a permanent is enchanted, will see equipped permanent as enchanted | Advantageous |
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Nebuchadnezzar | Nebuchadnezzar ability makes the game start endlessly repeating itself | Game Breaking |
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Freyalise's Winds | Freyalise's Winds Anytime a permanent with a wind counter would be untapped outside of the untap step, a wind counter is removed rather than it becoming untapped. | Disadvantageous |
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Liu Bei, Lord of Shu | The ability of Liu Bei, Lord of Shu does not function. | Non-Functional ability |
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Unscythe, Killer of Kings | Unscythe, Killer of Kings's effect procs when unequipped. | Advantageous |
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Sages of the Anima | Sages of the Anima puts the non-creature cards on top of the library instead of the bottom. | Disadvantageous |
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Prince of Thralls | Prince of Thralls asks its owner to pay life instead of the opponent. | Advantageous |
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Godsire | The art for the tokens created by [Godsire] is incorrect. | Graphical |
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Phyrexian Portal | Phyrexian Portal doesn't let the owner see the pile they have chosen or choose a card | Disadvantageous |
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Rogue Skycaptain | Rogue Skycaptain's upkeep cost is {0}. | Advantageous |
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Evershrike | If you activate Evershrike's ability multiple times before having it get reanimated, each trigger will let you attach an aura. | Advantageous |
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Glamerdye | When you change the color in a card's text, the card won't show the new chosen color in the cards itself, in the tooltip, and not in the zoomed version | Graphical |
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Umbral Mantle | When you untap a mana-producing creature as part of cost to activate an ability, MTGO wrongly allows you to tap that creature for mana in the middle of payng the cost | Advantageous |
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Pili-Pala | Pili-Pala can incorrectly pay for its own untap ability by tapping to use the ability granted by Grand Architect. | Advantageous |
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Mana Reflection | Mana Reflection doesn't double mana produced by mana abilities that provide mana in any combination of colors | Disadvantageous |
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Cragganwick Cremator | Cragganwick Cremator is unable to deal damage to planeswalkers. | Disadvantageous |
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Release the Ants | If a player has no cards left in their library, both players will lose a clash from cards such as Release the Ants. | Unclassified |
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Cairn Wanderer | Some specific protections (Snow or specificially spectra ward) are not counted as protections to be gained or shared | Disadvantageous |
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Fire Covenant | If Fire Covenant is cast for x=0 and you pay the 1 extra mana that MTGO asks you to (which is the bug), the game will restarts. Workaround: Undo the process if you encounter this bug, and never cast it for x=0 | Avoidable Game Breaking |
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Pox | The calculation code seems to be wrong, because one third of three (3) is calculated as two (2) | Advantageous |
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Mind Bend | Cards that ask you to choose "a basic land type or a color word" only let you choose a basic land type. | Disadvantageous |
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Cloud Key | Players are unable to correctly select a card type | Non-Functional ability |
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Patrician's Scorn | You can't pay the alternate cost of Patrician's Scorn | Disadvantageous |
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Oriss, Samite Guardian | Using Oriss, Samite Guardian's Grandeur ability during controller's precombat main phase will not allow controller to attack that turn. | Disadvantageous |
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Barren Glory | Barren Glory does not check intervening if clause during resolution | Advantageous |
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Fa'adiyah Seer | Fa'adiyah Seer and Sindbad's ability won't discard non-land card drawn if there is any dredge card in your graveyard | Advantageous |
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Volcano Hellion | Volcano Hellion's damage is capped at 255 | Disadvantageous |
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Null Profusion | Null Profusion triggers when another player casts its owner's cards | Advantageous |
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Jodah's Avenger | Jodah's Avenger's activated ability doesn't work correctly. | Disadvantageous |
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Porphyry Nodes | Porphyry Nodes allows a creature to regenerate if it's tied for the least power. | Disadvantageous |
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Dust Elemental | Dust Elemental only returns two creatures if its controller only controls exactly three creatures (including Dust Elemental itself) | Advantageous |
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Gemstone Caverns | There is a rare issue that can occur with Gemstone Caverns that can restart the game. | Game Breaking |
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Sindbad | Fa'adiyah Seer and Sindbad's ability won't discard non-land card drawn if there is any dredge card in your graveyard | Advantageous |
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Sound the Call | The art for the token created by Sound the Call is incorrect. | Graphical |
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Sheltering Ancient | [Sheltering Ancient]'s Cumulative Upkeep Stops Working After One Age Counter | Advantageous |
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Vexing Sphinx | Vexing Sphinx's Cumulative Upkeep Doesn't Make You Discard | Advantageous |
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Commandeer | Commandeer does not gain control of the targeted noncreature spell. | Disadvantageous |
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Odds // Ends | Odds restarts the game in buggy state on heads | Game Breaking |
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Odds // Ends | Odds restarts the game in buggy state on heads | Game Breaking |
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Nullstone Gargoyle | Nullstone Gargoyle functions incorrectly. | Unclassified |
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Nullstone Gargoyle | Nullstone Gargoyle counters all noncreature spells cast | Advantageous |
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Concerted Effort | Some protection abilities granted by Concerted Effort are not shown visually on creatures | Graphical |
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Concerted Effort | Some specific protections (Snow or specificially spectra ward) are not counted as protections to be gained or shared | Disadvantageous |
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Booby Trap | Booby Trap does not let you name anything other than non-basic lands. | Disadvantageous |
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Riptide Replicator | Riptide Replicator tokens use incorrect art and incorrectly display they have the changeling ability. | Graphical |
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Death Pit Offering | Death Pit Offering sacrifices all of its owner’s permanents, not just creatures | Disadvantageous |
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Storage Matrix | Storage Matrix Selecting yes to anything other than artifacts with two Storage Matrices in play causes the game to soft lock. | Avoidable Game Breaking |
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Zur's Weirding | Zur's Weirding Reveals but doesn't allow you to pay | Disadvantageous |
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Sekki, Seasons' Guide | Spirit tokens created by Sekki, Seasons' Guide are not considered to have the same name. | Unclassified |
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Cut the Earthly Bond | Spells and non-static abilities that care whether a permanent is enchanted, will see equipped permanent as enchanted | Advantageous |
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Tomorrow, Azami's Familiar | Tomorrow, Azami's Familiar puts both unchosen cards back on top of the library. | Disadvantageous |
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Brothers Yamazaki | If one player controls two Brothers Yamazaki, and another player controls one, the "legend rule" continues to not apply. | Unclassified |
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Brothers Yamazaki | The legend rule continues to not apply if you have multiple Brothers Yamazaki tokens from Helm of the Host. | Advantageous |
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Nezumi Shortfang | Kamigawa Flip cards are displayed as enchantments and do not respect the attack with all function or changes to power and toughness. | Unclassified |
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Samurai of the Pale Curtain | Samurai of the Pale Curtain does not exile tokens. | Disadvantageous |
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Death-Mask Duplicant | Some specific protections (Snow or specificially spectra ward) are not counted as protections to be gained or shared | Disadvantageous |
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Scythe of the Wretched | While Scythe of the Wretched is unequipped, it reanimates any creature that happens to die. | Advantageous |
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Quicksilver Fountain | Quicksilver Fountain allows you to place flood counters on nonland permanents. | Advantageous |
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Shared Fate | Zones that cards appear in due to the replacement ability of Shared Fate are incorrect. | Graphical |
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Orcish Spy | Orcish Spy and cards with similar abilities show the cards in alphabetical order, not the actual order | Disadvantageous |
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Momir Vig, Simic Visionary Avatar | Phyrexian Revoker can name the Momir Vig, Simic Visionary Avatar. | Unclassified |
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Cryptic Gateway | Cryptic Gateway does not let you select a card from your hand | Non-Functional ability |
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Words of Waste | Words of Waste does not function. | Non-Functional ability |
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Compost | Compost The effect isn't triggered when an opponent only casts the nonblack half of a split card. | Disadvantageous |
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Venomous Vines | Spells and non-static abilities that care whether a permanent is enchanted, will see equipped permanent as enchanted | Advantageous |
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Holistic Wisdom | Holistic Wisdom restarts the game when you activate it | Game Breaking |
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Liquid Fire | Liquid Fire doesn't let you choose how to deal damage - it all goes to player | Disadvantageous |
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Shifty Doppelganger | Shifty Doppelganger puts an "ability" onto the battlefield at end of turn, rather than itself. | Game Breaking |
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Goblin Game | Goblin Game reveals your chosen number before your opponents choose. | Disadvantageous |
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Overabundance | [Overabundance] can't add colorless mana, therefore keeping players from using lands that only tap for colorless | Advantageous |
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Meteor Storm | Meteor Storm only discards one card if you have exactly two | Advantageous |
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Crystal Spray | Cards that ask you to choose "a basic land type or a color word" only let you choose a basic land type. | Disadvantageous |
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Withdraw | Withdraw is able to target the same creature twice. | Advantageous |
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Caller of the Hunt | Caller of the Hunt doesn't allow you to pick a creature type | Disadvantageous |
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High Seas | [High Seas] only affects red creature spells. | Disadvantageous |
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Rayne, Academy Chancellor | Spells and non-static abilities that care whether a permanent is enchanted, will see equipped permanent as enchanted | Advantageous |
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Multani's Presence | Multani's Presence incorrectly draws cards off copies of spells that are countered | Advantageous |
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Thran Turbine | Thran Turbine mana is able to be used to cast spells | Advantageous |
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Mogg Assassin | Mogg Assassin doesn't kill the opponent's creature on a won flip and doesn't always let both players select a target | Disadvantageous |
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Aether Tide | Aether Tide is unable to be cast. | Unclassified |
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Spinning Darkness | You can't cast Spinning Darkness for its alternate cost | Disadvantageous |
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Teferi's Realm | Teferi’s Realm forces you to phase everything out | Unconfirmed |
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Null Chamber | [Null Chamber]'s Controller is asked to name two non-basic lands, rather than each player naming a card that's not a basic land. | Advantageous |
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