Duel Decks: Ajani vs. Nicol Bolas — Uncommon
Creature — Elemental
Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)
When Shriekmaw enters the battlefield, destroy target nonartifact, nonblack creature.
Evoke (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters the battlefield.)