Ulamog, Eater of Worlds

+3: Create a 4/2 Eldrazi Token with Vanishing 4.
-6: Create 6 1/2 Eldrazi Token with Flying and Vanishing 3. They cannot be the Target of Spells, Abilities, Enchantments or Artifacts you controll.
-12: Destroy all Creatures of Target Opponent with a converted Manacost of 6 or less. Destroy all Lands of Target Opponent except 3.