Valgavoth, Terror Eater (Duskmourn: House of Horror 352) - Double Exposure - Mythic Magic: The Gathering Card

Flying, lifelinkWard—Sacrifice three nonland permanents.If a card you didn't control would be put into an opponent's graveyard from anywhere, exile it instead.During your turn, you may play cards exiled with Valgavoth. If you cast a spell this way, pay life equal to its mana value rather than pay its mana cost.