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.

Illustrated by Zoltan Boros & Gabor Szikszai

Standard
Brawl
Pioneer
Historic
Modern
Pauper
Legacy
Penny
Vintage
Commander
Notes and Rules Information for Erratic Mutation:
  • The target creature is chosen as the spell is cast. You don’t reveal cards until the spell resolves. (2007-02-01)