Corpse explosion

The caster chooses a corpse they can see and magically boils all moisture within. The corpse erupts instantly spraying super heated bone, blood and viscera in a 20 foot sphere centered on the corpse. Each creature within range of the explosion must make a dexterity saving throw. On a failed saving throw each creature takes 6d8 force damage and 3d6 fire damage. On a successful saving throw each creature takes half damage.

For each spell slot used to cast this spell above 5th level increases by 1d8 force and 1d6 fire damage per spell slot above 5th level.