Dack Fayden, Mind Torn

+1: Target creature gets -X/-X until end of turn, where X is the number of cards in your hand.
0: Dack Fayden, Mind Torn becomes a copy of any creature on the battlefield, except it gains haste, indestructible, and dethrone until end of turn.
-3: Search an opponent's library for an artifact card and put that card onto the battlefield under your control, that player shuffles their library.