Farost, Soul's Damnation

Lifelink
Farost's power is equal to the number of cards in
exile.
{4}, Exile a card from a graveyard: Create a 2/2
black Zombie creature token.
{w}{u}{b}{r}, {t}, Sacrifice X other zombies: Each opponent mills X cards. Then exile up to X
target nonland permanents and/or cards from graveyards and/or hands.