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17 May 2024: Card library updated.

Mercurial Transformation

1U · Sorcery — Lesson

Until end of turn, target nonland permanent loses all abilities and becomes your choice of a blue Frog creature with base power and toughness 1/1 or a blue Octopus creature with base power and toughness 4/4.

Similar cards

Color identity:
NameManaTypeText
Song of Totentanz XRSorcery Create X 1/1 black Rat creature tokens with "This creature can't block." Creatures you control gain haste until end of turn.
You're in Command 1WSorcery Choose target creature you own and control. That creature becomes your commander. Any other commanders you have are no longer your commander. (That creature starts with a commander tax of {0}.)
Nature's Wrath 4GGEnchantment At the beginning of your upkeep, sacrifice Nature's Wrath unless you pay {G}. Whenever a player puts an Island or blue permanent onto the battlefield, that player sacrifices an Island or blue permanent. Whenever a player puts a Swamp or black permanent onto the battlefield, that player sacrifices a Swamp or black permanent.
Burning Cinder Fury of Crimson Chaos Fire 3REnchantment Whenever any player taps a permanent, that player chooses one of their opponents. The chosen player gains control of that permanent at the beginning of the next end step. At the beginning of each player's end step, if that player didn't tap any nonland permanents that turn, Burning Cinder Fury of Crimson Chaos Fire deals 3 damage to that player.
Grim Giganotosaurus 5BGCreature — Dinosaur {10}{B}{G}: Monstrosity 10. This ability costs {1} less to activate for each creature with power 4 or greater your opponents control. (If this creature isn't monstrous, put ten +1/+1 counters on it and it becomes monstrous.) When Grim Giganotosaurus becomes monstrous, destroy all artifacts and creatures other than Grim Giganotosaurus. 10/10
Realmbreaker's Grasp 1WEnchantment — Aura Enchant artifact or creature Enchanted permanent can't attack or block, and its activated abilities can't be activated unless they're mana abilities.
Ashiok, Nightmare Muse 3UBLegendary Planeswalker — Ashiok [+1]: Create a 2/3 blue and black Nightmare creature token with "Whenever this creature attacks or blocks, each opponent exiles the top two cards of their library." [−3]: Return target nonland permanent to its owner's hand, then that player exiles a card from their hand. [−7]: You may cast up to three spells from among face-up cards your opponents own from exile without paying their mana costs. Loyalty 5
Temporary Insanity 3RInstant Untap target creature with power less than the number of cards in your graveyard and gain control of it until end of turn. That creature gains haste until end of turn.
Witch-king, Bringer of Ruin 4BBLegendary Creature — Wraith Noble Flying Whenever Witch-king, Bringer of Ruin attacks, defending player sacrifices a creature with the least power among creatures they control. 5/3
Opaline Sliver 1WUCreature — Sliver All Slivers have "Whenever this permanent becomes the target of a spell an opponent controls, you may draw a card." 2/2
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