Darius, Dread Commander

+2: Draw 2 Cards, Sacrifice a Permanent and Destroy Target Permanent. Create a 2/2 Eldrazi Knight with Lifelink.
0: Create {x} 2/2 Eldrazi Knights where {x} is Half your life total. You can not use this ability again until after your next turn.
-12: Create 1 2/2 Eldrazi Knight for every creature,land,and Enchantment you have in play. Creatures you control gain +8/+8 and Trample.