Commander: Phyrexia: All Will Be One (Collector Cards) (ONCC) 

Artifact 

 

(U/P can be paid with either U or 2 life.) // 1(U/P), T, Exile a spell you control: Target opponent reveals cards from the top of their library until they reveal a card with mana value equal to 1 plus the exiled spell's mana value. Exile that card, then that player shuffles. You may cast that exiled card without paying its mana cost. 

Campbell White