Ancalagon, Doom Dragon

+2: Ancalagon, Doom Dragon deals 6 damage to 1 target and 4 damage to 2 others. He gains 1 loyalty point and you gain 1 life for each creature dead.
-4: Take control of all dragons and black or red creatures on the battlefield for the next 2 turns. They each get +1/+2 counters for those turns.
-8: You take control of all black and red creatures. Ancalagon, Doom Dragon kills four blue or green targets and you gain 4 life.