Erratic Mutation | 42 | Modern Masters

Set: Modern Masters
Rarity: C
#: 42
Creature Type or Sub Type: Instant
Rules Text Contains: 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.