Xumiriks

Flash, Ward - Remove a counter off target creature you control Changeling When Xumiriks enters the battlefield exchange up to Two target creatures text boxes until Xumiriks leaves the battlefield {u}{t}:Exile target creature, then shuffle its owners library, they reveal cards from the top of their library until they reveal a nonland card, you may play the Exiled Creature or the Revealed card without paying their mana costs. The non chosen card remains exiled.