Erratic Mutation

Instant    (CMC:3)

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 converted mana cost. Put all cards revealed this way on the bottom of your library in any order.

42 MMA • ENZoltan Boros & Gabor Szikszai

™ & © 1993—2013 Wizards of the Coast

Legal in: Modern,Time Spiral Block,Legacy,Vintage,Freeform,Prismatic,Tribal Wars Legacy,Classic,Singleton 100,Commander

Oracle Text (click to copy):

Erratic Mutation {2}{U} Instant 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 converted mana cost. Put all cards revealed this way on the bottom of your library in any order.

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View this MTG card on Gatherer

2/1/2007
The target creature is chosen as the spell is cast. You don't reveal cards until the spell resolves.
2/1/2007
If a split card is revealed, two +X/-X effects are created, one for each half of the split card.

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