Darkja (Dark IV)

You release a flood of necrotic energy in a sphere around you, attempting to overwhelm all creatures in range with negative energy. All creatures within a 40ft. radius of You must make a Charisma saving throw against your spell save DC, taking 8d8 necrotic damage on a failure and half as much on a success.

At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, the damage increases by 1d8 for each slot level above 5th.