The Raven Man

+1: Exile another target permanent, then return it to the battlefield tapped under its owner's control. You lose 2 life.
-4: Gain control of target creature with converted mana cost less than or equal to your life total until The Raven Man leaves the battlefield.
-7: Gain control of all creatures. Untap them. They gain haste until end of turn. Sacrifice them at the beginning of the next end step.