Corpse Combustion

You cause the corpse of one creature you can see within range to explode in a burst of necrotic energy. Up to 10 creatures of your choice within a 20 foot radius square of the corpse must make a constitution saving throw or take 14d12 necrotic damage or half on a successful save. In addition, any creature that failed the save is cursed until the end of their next long rest. If the creature dies while cursed, they explode as described previously.

At Higher Levels: When you cast this spell using an 8th level slot or higher, the damage increases by 1d12 for every level after 7th.