Karn, the Sanguinated

+2: Karn deals 1 damage to each creature in play.
-3: Exile the top three cards of your library and three from your graveyard. You may swap any of these cards and put them back in any order.
-13: Gain control of each opponents' creature with the highest power. They gain haste, menace and shroud. At end of turn, sacrifice them.