Putrescent Knight

Lifelink When this creature enters, you may sacrifice another creature. When you do, destroy target creature an opponent controls. When this creature dies, return target creature card with mana value 3 or less from your graveyard to the battlefield.{flavor}All tainted flesh eventually becomes putrescence, and this clump of it imbibed St. Trina’s nectar, which granted it eternal rest. And so it was that putrescence became her knight.