Tyrnoid, Gobbling Terror

Trample, Annihilator 2 (Whenever it attacks, defending player sacrifices two permanents.)
Tyrnoid, Gobbling Terror costs {1} less to cast for each card in your graveyard.
When Tyrnoid, Gobbling Terror attacks, create a colorless 3/2 Eldrazi Horror token. As long as you control an eldrazi horror token, damage dealt to you is prevented.