Card: Perplex
Casting Cost: 1UB
Color: Red
Type: Instant
Rules Text: Counter target spell unless its controller discards his or her hand. Transmute {1}{U}{B} ({1}{U}{B}, Discard this card: Search your library for a card with the same converted mana cost as this card, reveal it, and put it into your hand. Then shuffle your library. Transmute only as a sorcery.)

Ravnica: City of GuildsCommon