Emrakul, the World Ender

+3: Emrakul, the World Ender becomes Emrakul, the Promised End legendary creature until end of turn
+2: Emrakul, the World Ender becomes Emrakul, the Aeons Torn legendary creature until end of turn
-19: All creatures under your control become copies of Ulamog, the Ceaseless Hunger legendary creature. Scry 19