Ulamog, Madness of Tentacles

Reach, Indestructible
When you cast Ulamog, Destroy two target permanents
Whenever Ulamog Attacks, Target Opponent Exiles The Top twenty cards of his or her library.
Whenever Ulamog Attacks And You Control Emrukul, Create 5 3/2 Eldrazi Horror Creature Tokens Tapped And Attaking