Purgatory

{t}: Add {b} to your mana pool.
{t}, Pay 1 life: Discard 1 card, draw 1 card.
{t}, Pay 4 life: Search your library for a card
named "Lucifer, the Pride of God" and put
it in your hand. Shuffle your library afterwards.
"Lucifer always told me that the souls in the
purgatory are the prisoners of god, working an
eternity to build his wonders."
- Synod, the Blade of God