Undeath to Death

Undeath to Death destroys undead creatures. Those who are closest to the burst's point of origin are affected first. All creatures with 10 or less Hit points are slain outright, while creatures with more than 10 Hit points must succeed on saving throw. The DC of this CON save is 8 + sorcerer level + Charisma modifier or else they take 8d12 necrotic damage.

On a successful saving throw the Creature takes half damage.