Kain Rits, Mana Analyst

+1: Reveal the top 3 cards of your library. You may cast a multicolored spell from among them without paying its manacost. Bury the rest.
-2: Kain Rits deals damage to any target equal to the number of multicolored permanents on the battlefield. Draw a card.
-8: Until the end of your next turn, gain control of target opponent.