Ulamog, the all powerful

+2: Creatures you control gain annihilator 2 until end of turn
-5: Create a 5/5 Eldrazi creature token with annihilator 3
-12: Ulamog,the all powerful becomes a X/X Eldrazi Ancient creature with indestructible annihilator 4 and hast where X is, Ulamogs loyalty