Servant of Belrocka

You can have as many "Servant of Belrocka"
creatures in your library.
Sacerfice 6 "Servant of Belrocka" creatures:
Search your library for a Zerker Demon and
place it on the battlefield.
You have served me well. That is why I am
going to give you a swift death. - Koros,
Founder of Ruin