Davriel Cane

+2: Look at target opponents deck and exile a card face down under Davriel Cane
+1: Until your next turn you may play cards under Davriel Cane at any time if there converted mana cost is less or equal to Davriel Canes loyalty
-15: You may cast all cards from each players hand, deck, graveyard, and exile under your control they can't be countered