Darius, Hand of Kozilek

X: Draw a Card, Discard a Card. Kill Target Creature and gain loyalty equal to its toughness. Summon 1 2/2 Eldrazi Knight Token with Deathtouch.
0: Turn Darius, Hand of Kazilek into a 7/7 Creature with Indestructible and Lifelink. Each Eldrazi on the field get +2/+2 and Lifelink.
-15: Exile all Permanents your Opponent Controls. Your creatures get +10/+10. Creatures you control gain Hexproof, Trample, Double Strike.