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Card Bug Severity Read More
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
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. Graphical
Kess, Dissident Mage Kess, Dissident Mage has issues with casting spells through alternative methods. Unclassified
Scheming Symmetry Players do not have to select a card when Scheming Symmetry is cast, but they will still shuffle their library. Unclassified
Relic Crush Relic Crush can target the same permanent twice. Unclassified
Turn // Burn Fuse cards such as Turn // Burn have a visual error when granted other abilities. Unclassified
Death-Mask Duplicant Some specific protections (Snow or specificially spectra ward) are not counted as protections to be gained or shared Disadvantageous
Soul Separator The creature tokens created by Soul Separator have incorrect power and toughness. Unclassified
Volcano Hellion Volcano Hellion's damage is capped at 255 Disadvantageous
Momentous Fall Cards cast with conspire that require a player to sacrifice a creature as an additional cost to cast, incorrectly use the power and toughness of the either one of the creatures tapped for conspire instead of the sacrificed creature Disadvantageous
Lavinia, Azorius Renegade Copying an opponent's Lavinia, Azorius Renegade can cause the game to restart in specific instances. Unclassified
Epic Experiment Epic Experiment allows you to play the land side of MDFCs. Advantageous
Ugin, the Spirit Dragon Ugin, the Spirit Dragon interacts incorrectly with tokens that exile permanents. Unclassified
Tooth and Nail Using the Undo function during the second function of an entwined Tooth and Nail will restart the game when one or less creatures is tutored and at least one creature is in hand. Avoidable Game Breaking
Evra, Halcyon Witness Evra activation restarts the game in a buggy state Avoidable Game Breaking
City of Brass Drain Power does not function correctly when the targeted player controls City of Brass. Unclassified
Semblance Anvil Semblance Anvil does not function when a split card is imprinted. Disadvantageous
Peregrination This spell fails to display the destination zones of the chosen lands in the game log. Graphical
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
Drain Power Drain Power does not function correctly when the targeted player controls City of Brass. Unclassified
Fire // Ice Electrodominance is incorrectly unable to cast either side of split cards such as Fire // Ice when X equals 2. Unclassified
Solemnity Solemnity does not prevent a player from paying tribute cost, but the creature won't get the +1/+1 counter Advantageous
Invert // Invent There are issues with split cards such as Invert // Invent interacting with Eye of the Storm and Knowledge Pool. Unclassified
Choice of Damnations Choice of Damnations lets opponent choose whether to sacrifice or lose life Disadvantageous
Verdeloth the Ancient "Kicker {X}" costs do not allow you to spend mana on them correctly. Non-Functional ability
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
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
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
Clone Clone creatures still can copy creature although Humility or similar effects are in effect Advantageous
Clone Players are prompted to choose the replacement effect of cards such as Clone during the resolution of Show and Tell. Unclassified
Verdant Eidolon There is a known issue with Verdant Eidolon creating too much mana. Unclassified
Gaea's Blessing Gaea's Blessing does not function correctly when interacted with by Thief of Sanity. Unclassified
Kazuul, Tyrant of the Cliffs Kazuul, Tyrant of the Cliffs makes an Ogre creature token even if its triggered ability cost is paid. Advantageous
Chandra, Pyromaster Chandra, Pyromaster's ultimate resolves without copying the selected spell. Non-Functional ability
Caged Sun Caged Sun adds Colorless instead of Chosen Color with Karoo Disadvantageous
Tomorrow, Azami's Familiar Tomorrow, Azami's Familiar puts both unchosen cards back on top of the library. Disadvantageous
Terminus Cards with the miracle mechanic such as Terminus incorrectly retain their miracle blue text reminder when they are not cast. Unclassified
Bruna, the Fading Light Brisela, Voice of Nightmares incorrectly has a converted mana cost of 13. Unclassified
Bonecrusher Giant The "can't gain life" or "damage can't be prevented" effect doesn't appear in the Effect zone after the spell/ability resolves. Graphical
Grafdigger's Cage If you manifest a creature with Grafdigger's Cage in play, it will be exiled. Disadvantageous
Grafdigger's Cage With Grafdigger's Cage on the battlefield, the trigger of Matter Reshaper does not put the card into your hand. Unclassified
Fork in the Road This spell fails to display the destination zones of the chosen lands in the game log. Graphical
Goblin Electromancer With two copies of Goblin Electromancer in play, splice costs are incorrectly calculated. Unclassified
Last Rites Last Rites has graphical bug Graphical
Bala Ged Thief When only some cards from an opponent's hand are revealed, they do not appear in the revealed zone Disadvantageous
Hatchery Spider Hatchery Spider does not function correctly. Unclassified
Tamiyo's Journal When a Clue token lose its artifact type, it still retain its Clue subtype Advantageous
Phytotitan Phytotitan returns to the battlefield under it's controller's control, rather than its owner's control. Disadvantageous
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
Rags // Riches If a commander is chosen for Riches in Rags // Riches, no other opponents need to choose a creature. Disadvantageous
Feather, the Redeemed Adventure cards such as Rimrock Knight interact incorrectly with Feather, the Redeemed, Thief of Sanity, Lord of the Void, and Spell Queller. Unclassified
Mirror Match Non-creature permanents that become creatures temporarily are incorrectly considered blocked by the token copies Advantageous
Life and Limb Life and Limb does not interact correctly with Arcane Adaptation. Unclassified
Mindclaw Shaman You are unable to cast split cards with Mindclaw Shaman's ability. Disadvantageous
As Foretold As Foretold does not apply to cards able to be cast due to permission granted by other cards, such as Abandoned Sarcophagus and Harness the Storm Disadvantageous
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
Omen Machine Teferi, Mage of Zhalfir incorrectly allows opponents to cast spells with Omen Machine. Disadvantageous
Omen Machine Omen Machine forces previously exiled spells to be used when a target becomes available Advantageous
Kodama's Reach This spell fails to display the destination zones of the chosen lands in the game log. Graphical
Fireball Fireball cannot be cast with 0 targets when X = 0. Disadvantageous
Umori, the Collector The deckbuilder incorrectly shows that is Umori ineligible to be the companion for a Tribal-type deck. Graphical
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
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 paying the cost Advantageous
Necromancer's Covenant Necromancer's Covenant and Archdemon of Unx create incorrect token assets. Unclassified
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
Ulamog, the Ceaseless Hunger Cards that are exiled by Ulamog, the Ceaseless Hunger incorrectly show association arrows while in the Exiled Zone. Graphical
Profane Command If a player gains shroud in response to Profane Command, the first mode will still resolve if the other mode still have legal target / choosing to give creatures fear when you control no creatures sometimes prompts a large number Advantageous
Barren Glory Barren Glory does not check intervening if clause during resolution Advantageous
Bloodlord of Vaasgoth Bloodlord of Vaasgoth does not display the blue text it grants other vampires. Graphical
Vengeful Pharaoh Vengeful Pharaoh mistakes opponents for you and you for opponents Disadvantageous
World Queller World Queller allows you to sac opponents permanents Advantageous
Booby Trap Booby Trap does not let you name anything other than non-basic lands. Disadvantageous
Scythe of the Wretched While Scythe of the Wretched is unequipped, it reanimates any creature that happens to die. Advantageous
Distant Memories Distant Memories lock the game at opponent's priority Game Breaking
Watcher for Tomorrow Watcher for Tomorrow's reminder text in the game log implies it is a land (Hideaway ability) Graphical
Ulvenwald Mysteries When a Clue token lose its artifact type, it still retain its Clue subtype Advantageous
Vedalken Shackles Vedalken Shackles interacts incorrectly with creatures that enter the battlefield tapped and attacking. Unclassified
Zoetic Cavern City of Traitors triggers by casting Zoetic Cavern as a Morph creature Disadvantageous
Smallpox The client incorrectly display that you may choose to discard either the Adventure or the creature side of an Adventure card Advantageous
Vedalken Orrery Chainer, Nightmare Adept can't cast cards using its ability during opponents turn when Vedalken Orrery is also in play. Disadvantageous
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
Buried Alive The order of cards put into the graveyard by Buried Alive is random Disadvantageous
Vivien, Champion of the Wilds If Vivien, Champion of the Wilds exiles a creature with flash, it incorrectly also displays that it has flash in blue text. Unclassified
The Mirari Conjecture Premium versions of Sagas such as The Mirari Conjecture have some incorrect art assets. Unclassified
Teferi, Mage of Zhalfir Teferi, Mage of Zhalfir incorrectly allows opponents to cast spells with Omen Machine. Disadvantageous
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
Sword-Point Diplomacy Sword-Point Diplomacy is buggy in multiplayer Advantageous
Phantasmagorian The order of cards discarded by Phantasmagorian's ability is random Unconfirmed
Show and Tell Players are prompted to choose the replacement effect of cards such as Clone during the resolution of Show and Tell. Unclassified
Metallic Mimic If Metallic Mimic and a creature of the chosen type enter the battlefield at the same time, the system will incorrectly give that creature a +1/+1 counter Advantageous
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
Undercity Scavenger If you doesn't sacrifice a creature to Undercity Scavenger's ETB ability, you still get to scry 2 Advantageous
Gideon Jura Certain effect shields, such as the indestructible one created by Gideon Jura, sometimes display slightly longer than they should. Unclassified
Sheltering Ancient Sheltering Ancient's cumulative upkeep won't put the +1/+1 counter on a creature that already have +1/+1 counter, but you can still choose them Advantageous
Nullstone Gargoyle Nullstone Gargoyle counters all noncreature spells cast Advantageous
Animar, Soul of Elements Animar, Soul of Elements can cause slowdown with an excessive amount of counters on it. Unclassified
Sphinx of Uthuun Sphinx of Uthuun's trigger does not allow you to order the cards going into your graveyard Disadvantageous
Dreampod Druid Spells and non-static abilities that care whether a permanent is enchanted, will see equipped permanent as enchanted Advantageous
Nebuchadnezzar Nebuchadnezzar ability makes the game start endlessly repeating itself Game Breaking
Nahiri's Wrath The prompt box of Nahiri's Wrath displays incorrect text. Unclassified
Nahiri's Wrath The prompt box for the additional cost of Nahiri's Wrath contains a grammatical error when selecting a single target. Graphical
Stunt Double Clone creatures still can copy creature although Humility or similar effects are in effect Advantageous
Mana Reflection Mana Reflection doesn't double mana produced by mana abilities that provide mana in any combination of colors Disadvantageous
Compulsive Research Dredging rather than drawing can let you avoid discarding in a specific case Advantageous
Holistic Wisdom Holistic Wisdom restarts the game when you activate it Game Breaking
Porphyry Nodes Porphyry Nodes allows a creature to regenerate if it's tied for the least power. Disadvantageous
Doubling Cube Doubling Cube effect does not work Non-Functional ability
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
Thieving Sprite When only some cards from an opponent's hand are revealed, they do not appear in the revealed zone Disadvantageous
Karn Liberated Restarting the game with Karn Liberated restarts the game (But not in the good way) Game Breaking
Karn Liberated Restarting the game with Karn Liberated does not remove the City's Blessing. Unclassified
Tidal Warrior Tidal Warrior's activated ability removes all abilities from the targetted land Advantageous
Compost Compost isn't triggered when an opponent only casts the nonblack half of a split card. Disadvantageous
Graf Mole When a Clue token lose its artifact type, it still retain its Clue subtype Advantageous
Daretti, Ingenious Iconoclast Daretti, Ingenious Iconoclast creates tokens with the wrong card image Graphical
Tireless Tracker When a Clue token lose its artifact type, it still retain its Clue subtype Advantageous
Sigarda, Heron's Grace Sigarda, Heron's Grace doesn't grant you hexproof Disadvantageous
Reflecting Pool Reflecting Pool does not get the ability to add any color of mana to your mana pool from Crumbling Vestige. Disadvantageous
Gigantoplasm Clone creatures still can copy creature although Humility or similar effects are in effect Advantageous
Island Sanctuary Island Sanctuary's replacement effect is available if you draw a card during an opponents draw step Advantageous
Sorin, Lord of Innistrad If Sorin, Lord of Innistrad somehow becomes a creature, he cannot target himself with his ultimate ability. Unclassified
Sunscourge Champion Sunscourge Champion will cause you to lose life if it has negative power when its trigger resolves. Disadvantageous
Blood Clock Umbilicus doesn't let you return permanent to hand Advantageous
Blood Clock Blood Clock won't let owner return a permanent to it's owners hand Advantageous
Szadek, Lord of Secrets Szadek, Lord of Secrets won't deal any damage at all nor get its replacement effect when a "Damage can't be prevented" ability is active Disadvantageous
Orcish Spy Orcish Spy and cards with similar abilities show the cards in alphabetical order, not the actual order Disadvantageous
Umbilicus Umbilicus doesn't let you return permanent to hand Advantageous
Brothers Yamazaki If one player controls two Brothers Yamazaki, and another player controls one, the "legend rule" continues to not apply. Unclassified
Storage Matrix Selecting yes to anything other than artifacts with two Storage Matrix in play causes the game to soft lock. Avoidable Game Breaking
Mercurial Pretender Clone creatures still can copy creature although Humility or similar effects are in effect Advantageous
Dream Halls Dream Halls does not function correctly with modal spells such as Mystic Confluence. Unclassified
Rogue Skycaptain Rogue Skycaptain's upkeep cost is {0}. Advantageous
Thief of Sanity Adventure cards such as Rimrock Knight interact incorrectly with Feather, the Redeemed, Thief of Sanity, Lord of the Void, and Spell Queller. Unclassified
Thief of Sanity Gaea's Blessing does not function correctly when interacted with by Thief of Sanity. Unclassified
Fortune's Favor Fortune's Favor does not indicate which pile is face up Graphical
Swirl the Mists Swirl the Mists will randomly restart the game Game Breaking
Cultivate This spell fails to display the destination zones of the chosen lands in the game log. Graphical
Nazahn, Revered Bladesmith Nazahn, Revered Bladesmith will sometimes give the equipment it finds to another player's hand. Disadvantageous
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
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
Rosheen Meanderer Rosheen Meanderer is unable to contribute mana to spells that ask an opponent to pay X, such as Condescend. Disadvantageous
Kopala, Warden of Waves Kopala, Warden of Waves incorrectly increases the cost of spells by two for each Merfolk that spell targets. Advantageous
Phyrexian Metamorph Clone creatures still can copy creature although Humility or similar effects are in effect Advantageous
Rotting Rats The client incorrectly display that you may choose to discard either the Adventure or the creature side of an Adventure card Advantageous
Hunted Dragon The tokens created by Hunted Dragon display Banding in addition to first strike Graphical
Matter Reshaper With Grafdigger's Cage on the battlefield, the trigger of Matter Reshaper does not put the card into your hand. Unclassified
Wall of Stolen Identity Clone creatures still can copy creature although Humility or similar effects are in effect Advantageous
Meteor Storm Meteor Storm only discards one card Advantageous
Goblin Game Goblin Game reveals your chosen number before your opponents choose. Disadvantageous
Gift of Tusks Whenever an ability is granted to a creature and then get removed, graphically MTGO will still shows the abilities on the creature Graphical
Sibsig Icebreakers The client incorrectly display that you may choose to discard either the Adventure or the creature side of an Adventure card Advantageous
Vizier of Many Faces Clone creatures still can copy creature although Humility or similar effects are in effect Advantageous
Multani's Presence Multani's presence also draws cards when a spell does not resolve because there is no more valid target. Advantageous
Multani's Presence Multani's Presence incorrectly draws cards off copies of spells that are countered Advantageous
Knowledge Pool There are issues with split cards such as Invert // Invent interacting with Eye of the Storm and Knowledge Pool. Unclassified
Knowledge Pool With multiple Knowledge Pools in play, casting a spell from hand lets you cast a spell from each Pool. Advantageous
Evil Twin Clone creatures still can copy creature although Humility or similar effects are in effect Advantageous
Progenitor Mimic Clone creatures still can copy creature although Humility or similar effects are in effect Advantageous
Necromantic Summons The spell mastery ability of Necromantic Summons does not function. Unclassified
Cairn Wanderer Some specific protections (Snow or specificially spectra ward) are not counted as protections to be gained or shared Disadvantageous
Miasmic Mummy The client incorrectly display that you may choose to discard either the Adventure or the creature side of an Adventure card Advantageous
Vesuvan Doppelganger Clone creatures still can copy creature although Humility or similar effects are in effect Advantageous
Primal Command Primal Command prints wrong owner for noncreature permanents it puts on top Graphical
Jwari Shapeshifter Clone creatures still can copy creature although Humility or similar effects are in effect Advantageous
Overabundance Overabundance can't add the additional colorless mana, therefore keeping players from tapping lands for colorless mana Advantageous
Riptide Replicator Riptide Replicator tokens use incorrect art and incorrectly display they have the changeling ability. Graphical
Protean Raider Clone creatures still can copy creature although Humility or similar effects are in effect Advantageous
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
Daring Sleuth When a Clue token lose its artifact type, it still retain its Clue subtype Advantageous
Lurking Evil Lurking Evil makes you pay life equal to half of your opponent's life total Advantageous
Mystic Forge Mystic Forge does not allow casting Zoetic Cavern as a Morph creature from the top of your library Disadvantageous
Austere Command This card does not respect 711.4b and treats the converted mana cost of the back side of double-faced permanents as 0. Advantageous
Battlefield Thaumaturge Battlefield Thaumaturge wrongly handle how much discount a spell get if it being targeted more than once by that spell Advantageous
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
Eye of the Storm There are issues with split cards such as Invert // Invent interacting with Eye of the Storm and Knowledge Pool. Unclassified
Grave Betrayal If Grave Betrayal changes owners with its trigger on the stack, the new controller incorrectly becomes the owner of the trigger. Unclassified
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
Wormfang Turtle Wormfang Newt/Turtle returns MDFCs on their land side, rather than their front side. Disadvantageous
Crovax the Cursed Crovax The Cursed loses old counters after sacrifice Disadvantageous
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
Riders of Gavony Riders of Gavony does not grant blue rules text indicating protection. Graphical
Evershrike If you activate Evershrike's ability multiple times before having it get reanimated, each trigger will let you attach an aura. Advantageous
Concerted Effort Some specific protections (Snow or specificially spectra ward) are not counted as protections to be gained or shared Disadvantageous
Concerted Effort Some protection abilities granted by Concerted Effort are not shown visually on creatures Graphical
Jungle Basin Caged Sun adds Colorless instead of Chosen Color with Karoo Disadvantageous
Fleeting Memories When a Clue token lose its artifact type, it still retain its Clue subtype Advantageous
Odds // Ends Odds restarts the game in buggy state on heads Game Breaking
Odds // Ends Odds restarts the game in buggy state on heads Game Breaking
City of Traitors Opponents playing lands owned by the controller of City of Traitors will incorrectly trigger it. Unclassified
Stolen Identity When a player casts a spell with cipher such as Stolen Identity, the caster incorrect gains priority before it finishes resolving. Unclassified
Angelic Field Marshal Angelic Field Marshal still grants a bonus to your commander when an opponent gains control of it. Advantageous
Mystic Confluence Dream Halls does not function correctly with modal spells such as Mystic Confluence. Unclassified
Panoptic Mirror Panoptic Mirror's second ability stop working after exiling more than one card Disadvantageous
Pia's Revolution Pia's Revolution creates an incorrect prompt while also being nonfunctional. Disadvantageous
Imprisoned in the Moon There are display issues involving planeswalkers interacting with Imprisoned in the Moon. Unclassified
Cut // Ribbons Split cards such as Cut // Ribbons are reported as 3 cards in the chat log. Graphical
Shifty Doppelganger Shifty Doppelganger puts an "ability" onto the battlefield at end of turn, rather than itself. Game Breaking
Gauntlets of Chaos Gauntlets of Chaos allows you to target illegal targets. Unclassified
Wilderness Reclamation If No Possible Play: Yield All is set (F8) when an ability untaps all lands a player controls such as Wilderness Reclamation, one of the lands may be visually tapped, however, it can still be tapped. Unclassified
Mind Bend Cards that replace a basic land type with another, only change the type of the land but not the mana produced Disadvantageous
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
Ulamog's Despoiler Creatures entering the battlefield as a copy of Ulamog's Despoiler do not trigger its ability. Disadvantageous
Blade of Selves Myriad tokens are not exiled at the end of combat Unclassified
Prince of Thralls Prince of Thralls asks its owner to pay life instead of the opponent. Advantageous
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
Enduring Renewal Enduring Renewal prevents losing to decking Advantageous
Primal Amulet Primal Wellspring's triggered ability has the text of Pyromancer's Goggles Graphical
Primal Amulet If you cast a card you don't own with Primal Wellspring, the copy is cast by the card's owner. Disadvantageous
Strongarm Tactics The client incorrectly display that you may choose to discard either the Adventure or the creature side of an Adventure card Advantageous
Jace, Cunning Castaway Illusion tokens created by Jace, Cunning Castaway have redundant blue text. Graphical
Necra Sanctuary Necra Sanctuary does not cause a player to lose 3 life if you control both a green and white permanent. Unclassified
Whispering Madness Whispering Madness, Cipher require to pay the spell cost Disadvantageous
Mirror Image Clone creatures still can copy creature although Humility or similar effects are in effect Advantageous
Primitive Justice Primitive Justice does not function correctly when targeting a single artifact. Unclassified
Electrodominance Electrodominance is incorrectly unable to cast either side of split cards such as Fire // Ice when X equals 2. Unclassified
Pollen Lullaby Pollen Lullaby does not display the rules text stating that the creature doesn't untap. Unclassified
Coral Atoll Caged Sun adds Colorless instead of Chosen Color with Karoo Disadvantageous
Life's Legacy Cards cast with conspire that require a player to sacrifice a creature as an additional cost to cast, incorrectly use the power and toughness of the either one of the creatures tapped for conspire instead of the sacrificed creature Disadvantageous
Earsplitting Rats The client incorrectly display that you may choose to discard either the Adventure or the creature side of an Adventure card Advantageous
Stigma Lasher The "can't gain life" or "damage can't be prevented" effect doesn't appear in the Effect zone after the spell/ability resolves. Graphical
Culling Sun This card does not respect 711.4b and treats the converted mana cost of the back side of double-faced permanents as 0. Advantageous
Everglades Caged Sun adds Colorless instead of Chosen Color with Karoo Disadvantageous
Containment Priest Containment Priest exiles Theros Gods even when their devotion isn't met. Advantageous
Containment Priest If Containment Priest and any other creatures (not cast) ETB at the same time, all the other creatures get exiled Disadvantageous
Stronghold Rats The client incorrectly display that you may choose to discard either the Adventure or the creature side of an Adventure card Advantageous
Sakashima the Impostor Clone creatures still can copy creature although Humility or similar effects are in effect Advantageous
Krond the Dawn-Clad Spells and non-static abilities that care whether a permanent is enchanted, will see equipped permanent as enchanted Advantageous
Alter Reality 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
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
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
Zhur-Taa Druid Zhur-Taa Druid does not deal damage when tapped for its ability Unconfirmed
Body Double Clone creatures still can copy creature although Humility or similar effects are in effect Advantageous
Wild Slash The "can't gain life" or "damage can't be prevented" effect doesn't appear in the Effect zone after the spell/ability resolves. Graphical
Guardian Project Guardian Project does not draw a card if a face-down permanent (e.g. Morph) enters the battlefield. Disadvantageous
Phyrexian Revoker If a card is manifested and would normally require a choice as it enters the battlefield, it incorrectly prompts you for that choice Advantageous
Rayami, First of the Fallen Rayami, First of the Fallen can restart the game in certain situations when other creatures die. Unclassified
Tromokratis Tromokratis can cause the game the game to soft-lock in multiplayer games Game Breaking
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
Overwhelming Splendor Creatures with ascend can still grant the City's Blessing with Overwhelming Splendor on the battlefield. Disadvantageous
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
Dormant Volcano Caged Sun adds Colorless instead of Chosen Color with Karoo Disadvantageous
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
Arcane Adaptation Life and Limb does not interact correctly with Arcane Adaptation. Unclassified
Charmed Pendant Charmed Pendant's ability doesn't add mana to mana pool Disadvantageous
Pox The calculation code seems to be wrong, because one third of three (3) is calculated as two (2) Advantageous
Rimrock Knight Adventure cards such as Rimrock Knight interact incorrectly with Feather, the Redeemed, Thief of Sanity, Lord of the Void, and Spell Queller. Unclassified
Jester's Scepter Jester's Scepter Cannot Be Used To Counter Spells Non-Functional ability
Platinum Emperion If you control Platinum Emperion you cannot even pay 0 life for costs. Disadvantageous
Phyrexian Portal Phyrexian Portal's prompt message is ambiguous whether it's the pile to be exiled or to be searched for, and the rest of the searched pile is put on the bottom instead of being shuffled back in Disadvantageous
Lord of the Void Adventure cards such as Rimrock Knight interact incorrectly with Feather, the Redeemed, Thief of Sanity, Lord of the Void, and Spell Queller. Unclassified
Mist of Stagnation Mist of Stagnation doesn't allow players to choose untapped permanents, will soft-lock the game if there are not enough tapped permanents in the field to fulfil the requirements, and in random cases requires less number of tapped permanents than what should normally be required Game Breaking
Godsire The tokens created by Godsire doesn't clearly stating nor indicating its colors Graphical
Spell Queller Adventure cards such as Rimrock Knight interact incorrectly with Feather, the Redeemed, Thief of Sanity, Lord of the Void, and Spell Queller. Unclassified
Pithing Needle Avatars are incorrectly on the list of cards you can name with cards such as Pithing Needle. Unclassified
Krark's Thumb Krark's Thumb prints all coin flips of its owner three times Graphical
Floodtide Serpent Instead of bouncing an enchantment, attacking with Floodtide Serpent shows you all zones. Avoidable Game Breaking
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
Collected Company Collected Company does not allow you to put fewer than the maximum number of creatures onto the battlefield. Disadvantageous
Broodbirth Viper Broodbirth Viper's token(s) don't get exiled at the end of combat Advantageous
Commandeer Commandeer does not gain control of the targeted noncreature spell. Disadvantageous
Wolf-Skull Shaman Wolf-Skull Shaman automatically reveals the top card of your library without a prompt. Unclassified
Skullcrack The "can't gain life" or "damage can't be prevented" effect doesn't appear in the Effect zone after the spell/ability resolves. Graphical
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
Disciple of Phenax When only some cards from an opponent's hand are revealed, they do not appear in the revealed zone Disadvantageous
Vexing Sphinx Vexing Sphinx's cumulative upkeep make you discard only one card regardless of the amount of age counters it has Advantageous
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
Zombie Trailblazer Zombie Trailblazer and Slimy Kavu turn lands into islands instead of swamps Disadvantageous
Rhythm of the Wild Rhythm of the Wild incorrectly grants riot to creature cards that enter the battlefield as noncreatures such as Keranos, God of Storms. Unclassified
Damping Engine Damping Engine activated ability is broken. Sacrificing a permanent pops up another trigger to sac another permanent. Unconfirmed
Crystal Spray Cards that replace a basic land type with another, only change the type of the land but not the mana produced Disadvantageous
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
Realms Uncharted This spell fails to display the destination zones of the chosen lands in the game log. Graphical
Creeping Dread The client incorrectly display that you may choose to discard either the Adventure or the creature side of an Adventure card Advantageous
Distended Mindbender When only some cards from an opponent's hand are revealed, they do not appear in the revealed zone Disadvantageous
Liquid Fire Liquid Fire doesn't let you choose how to deal damage - it all goes to player Disadvantageous
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
Sakashima's Student Clone creatures still can copy creature although Humility or similar effects are in effect Advantageous
Emrakul, the Promised End Casting two copies of Emrakul, the Promised End does not give the opponent two extra turns. Unclassified
Slimy Kavu Zombie Trailblazer and Slimy Kavu turn lands into islands instead of swamps Disadvantageous
Atarka's Command The "can't gain life" or "damage can't be prevented" effect doesn't appear in the Effect zone after the spell/ability resolves. Graphical
Xathrid Slyblade Xathrid Slyblade does not lose hexproof when its ability is activated. Advantageous
Chromatic Sphere Chromatic Sphere's ability is not considered as mana ability Disadvantageous
Consume the Meek This card does not respect 711.4b and treats the converted mana cost of the back side of double-faced permanents as 0. Advantageous
Keranos, God of Storms Rhythm of the Wild incorrectly grants riot to creature cards that enter the battlefield as noncreatures such as Keranos, God of Storms. Unclassified
Volrath's Shapeshifter Volrath's Shapeshifter does not function as intended. Game Breaking
Volrath's Shapeshifter Sphinx of Uthuun's trigger does not allow you to order the cards going into your graveyard Disadvantageous
Gemstone Caverns There is a rare issue that can occur with Gemstone Caverns that can restart the game. Game Breaking
Cunning Lethemancer The client incorrectly display that you may choose to discard either the Adventure or the creature side of an Adventure card Advantageous
Emblazoned Golem "Kicker {X}" costs do not allow you to spend mana on them correctly. Non-Functional ability
Sekki, Seasons' Guide Spirit tokens created by Sekki, Seasons' Guide are not considered to have the same name. Unclassified
Phantasmal Image Clone creatures still can copy creature although Humility or similar effects are in effect Advantageous
Harm's Way Harm's Way cannot redirect combat damage to planeswalkers. Unclassified
Muldrotha, the Gravetide Muldrotha, the Gravetide does not allow you to cast cards from your graveyard with As Foretold. Disadvantageous
Mire's Toll When only some cards from an opponent's hand are revealed, they do not appear in the revealed zone Disadvantageous
Karoo Caged Sun adds Colorless instead of Chosen Color with Karoo Disadvantageous
Bludgeon Brawl There are various issues with Bludgeon Brawl. Unclassified
Freyalise's Winds Anytime a permanent with a wind counter would be untapped outside of the untap step with Freyalise's Winds in play, a wind counter is removed rather than it becoming untapped wrongly Disadvantageous
Freyalise's Winds Freyalise's Winds interacts incorrectly with cards being tapped outside of the untap step. Unclassified
Secret Salvage Secret Salvage does not add the cards found from the library to the revealed zone. Graphical
Umbra Mystic Umbra Mystic interacts incorrectly with creatures enchanted with multiple auras. Unclassified
Flames of the Blood Hand The "can't gain life" or "damage can't be prevented" effect doesn't appear in the Effect zone after the spell/ability resolves. Graphical
Whims of the Fates Whims of the Fates Causes client crashes Game Breaking
Shared Fate Zones that cards appear in due to the replacement ability of Shared Fate are incorrect. Graphical
Pattern Matcher Pattern Matcher Fails to find valid matches Disadvantageous
Descendants' Path Descendants' Path allows you to play noncreature Tribal spells Advantageous
Crackling Drake Creatures with variable power and toughness such as Crackling Drake are not correctly updated in the reveal zone. Graphical
Sound the Call The token created by Sound the Call has incorrect art. Unclassified
Sound the Call The art for the token created by Sound the Call is incorrect. Graphical
Streambed Aquitects Tidal Warrior's activated ability removes all abilities from the targetted land Advantageous
Spectral Shift Cards that replace a basic land type with another, only change the type of the land but not the mana produced Disadvantageous
Spectral Shift 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
The Great Aurora The Great Aurora shuffles tokens into your library that you can then draw. Unclassified
Archdemon of Unx Necromancer's Covenant and Archdemon of Unx create incorrect token assets. Unclassified
Olivia Voldaren Olivia Voldaren can target herself with her first ability. Advantageous
Quicksilver Gargantuan Clone creatures still can copy creature although Humility or similar effects are in effect Advantageous
Spark Double Clone creatures still can copy creature although Humility or similar effects are in effect Advantageous
Dack's Duplicate Clone creatures still can copy creature although Humility or similar effects are in effect Advantageous
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
Altered Ego Clone creatures still can copy creature although Humility or similar effects are in effect Advantageous
Caller of the Hunt Caller of the Hunt doesn't allow you to pick a creature type Disadvantageous
Confront the Unknown When a Clue token lose its artifact type, it still retain its Clue subtype Advantageous
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. Graphical
Null Profusion Null Profusion triggers when another player casts its owner's cards Advantageous
Unscythe, Killer of Kings Unscythe, Killer of Kings's effect procs when unequipped. Advantageous
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
Structural Collapse Structural Collapse doesn't cause target to sacrifice either an artifact or land. Disadvantageous
Words of Waste Words of Waste does not function. Non-Functional ability
Unstable Footing The "can't gain life" or "damage can't be prevented" effect doesn't appear in the Effect zone after the spell/ability resolves. Graphical
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
Skinshifter The ability context menu of Skinshifter is displayed incorrectly. Unclassified
Mana Bloom If you activare Mana Bloom after you determine the total cost of the spell or ability, you can't cancel the process of casting the spell or ability Disadvantageous
Chainer, Nightmare Adept Chainer, Nightmare Adept can't cast cards using its ability during opponents turn when Vedalken Orrery is also in play. Disadvantageous
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
Pyxis of Pandemonium If multiple copies of Pyxis of Pandemonium are on the battlefield, it is difficult to determine where cards are associated. Unclassified
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
Laquatus's Creativity Laquatus' Creativity doesn't discard Advantageous
Wormfang Newt Wormfang Newt/Turtle returns MDFCs on their land side, rather than their front side. Disadvantageous
Breaching Leviathan Breaching Leviathan does not force the creature to remain tapped for a turn. Unclassified
Trait Doctoring Cards that replace a basic land type with another, only change the type of the land but not the mana produced Disadvantageous
Trait Doctoring Cards that ask you to choose "a basic land type or a color word" only let you choose a basic land type. Disadvantageous
Whim of Volrath Cards that ask you to choose "a basic land type or a color word" only let you choose a basic land type. Disadvantageous
Flaring Pain The "can't gain life" or "damage can't be prevented" effect doesn't appear in the Effect zone after the spell/ability resolves. Graphical
Samurai of the Pale Curtain Samurai of the Pale Curtain does not exile tokens. Disadvantageous
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
High Seas High Seas only affects red creature spells. Disadvantageous
Withdraw Withdraw is able to target the same creature twice. Advantageous
Briarbridge Patrol When a Clue token lose its artifact type, it still retain its Clue subtype Advantageous
Repudiate // Replicate If split cards such as Repudiate // Replicate are exiled face down, they are sometimes still revealed to all players. Unclassified
Repudiate // Replicate If you choose to exile a split card such as Repudiate // Replicate, you will be given three options, but they all perform the same function. Unclassified
Mindlash Sliver The client incorrectly display that you may choose to discard either the Adventure or the creature side of an Adventure card Advantageous
Sages of the Anima Sages of the Anima puts the non-creature cards on top of the library instead of the bottom. Disadvantageous
Mystical Dispute Cards such as Mystical Dispute are not respected fully by the "No possible play: Yield all" keybinding. Unclassified
Bonds of Mortality Bonds of Mortality gives everything hexproof? Disadvantageous

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