Apostle of the Heinous

Sacrifice a creature: Add {b} or {r} to your mana
pool. Use this mana only to cast Demons spells.
Sacrifice Apostle of the Heinous: Search your
library for a Demon creature card, put it into
your hand, and shuffle your library. You lose
3 life.
My lord, use my body as your host and show these heathens the damnation they deserve!