Dark Flame

A dark orb streaks to a point you choose within range and then flashes with a loud crack into an explosion of black flame and smoke. Each creature within a 20-foot-radius must make a Dexterity saving throw. Each target takes 6d6 necrotic damage and 2d6 fire damage on a failed save and becomes frightened for 1 minute, or half as much damage on a successful save and does not become frightened.

The dark fire erupts with the shrieks and cries from the souls of the slain. 

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the necrotic damage increases by 1d6 for each slot level above 3rd.