Dread Blast

Darkness streaks you to a point you choose within range and then explodes. Each creature in a 10-foot-radius Sphere centered on that point makes a Wisdom saving throw, taking 2d6 Necrotic damage and being frightened for 1 round on a failed save or half as much damage on a successful one. 

Using a Higher-Level Spell Slot. The damage increases by 1d6 for each spell slot level above 1.