Gambit, King of Thieves

+1: Draw a card, then discard a card. Gambit, King of Thieves deals damage equal to the discarded cards mana value to target creature.
-2: Exile the top two cards of target players library. Until end of turn, you may cast one of them without paying its mana cost.
-6: Gain control of up to three target noncreature permanents an opponent controls.