Occult Dogma

Expel {1} (If you would roll this card from the Chaos
Library, instead, exile it. As long as it remains exiled,
you may cast it for it's expel cost)
Add {b}{b}{b} to your mana pool.
"With each recitation, his black blood flowed from the wounds in his arms to his fingers. A torchlight pierced
the darkness to reveal an ornate mirror that reflected
death itself."