The Putrescent Knight

Vigilance, menace
Descend 8 - {4}{u}{b}: Return the Putrescent Knight from your graveyard to the battlefield with a finality counter on it. Activate only if there are eight
or more permanent cards in your graveyard and only
as a sorcery. (If a creature with a finality counter on
it would die, exile it instead.)

"All tainted flesh eventually becomes putrescence, and this clump of it imbibed St. Trina's nectar, which granted it eternal rest. "