Wail of Doom

You let out a horrifying shriek that haunts the minds of all creatures before you, causing them to wither a bit under the strain of your voice. Each creature in a 30-foot cone must make a Wisdom saving throw. A creature takes 6d10 necrotic damage on a failed save and is frightened, or half as much damage and is not frightened on a successful one.  A frightened creature can repeat the saving throw at the end of its turn.

At Higher Levels. When you cast this spell using a spell slot of 7th level or higher, the damage increases by 1d10 for each slot level above 5th.