Thel 'Vadam, Arbiter

+1: Reveal the top card of your library. If its an artifact or creature card, you may put it into your hand.
-X: Thel 'Vadam Arbiter deals X damage to any target. If X is 5 or more that target's controller or that player discards a card.
-8: Each opponent chooses a nonland permanent they control then sacrifices all other nonland permanents they control.