INSTANT
Erratic Mutation
Choose target creature. Reveal cards from the top of your library until you reveal a nonland card. That creature gets +X/-X until end of turn, where X is that card's mana value. Put all cards revealed this way on the bottom of your library in any order.
FORMATS
CommanderLEGAL
Brawl (Historic)NOT LEGAL
DraftNOT LEGAL
StandardNOT LEGAL
ModernLEGAL
PioneerNOT LEGAL
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- WWizards of the Coast2021-03-19Official RulingIf a card in a player's library has in its mana cost, X is considered to be 0.
- WWizards of the Coast2021-03-19Official RulingYou reveal cards and the creature gets +X/-X all while Erratic Mutation is resolving. Nothing can happen in between, and no player can take actions.
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