Mammon, Debt Eternal

Lifelink, indestructible.

When Mammon, Debt Eternal enters, gain life equal to your devotion to black.

At the beginning of each upkeep, the player whose turn it is loses 6 life. You may draw a card for each life lost this way. For each card drawn this way, lose 2 life. If it's your turn, lose 1 life for each card drawn this way instead.

"My death alone brings liberation, yet no end shall be rendered upon me."