Chord of Shards

The caster strikes a musical chrod so shrill that the notes literally turn into razor-sharp, crystalline shards, blasting the area in a 15-foot cone. All creatures in that are must make a Dexterity saving throw. On a failure, they take 2d6 thunder damage or half as much on a success.

At Higher Levels: When this spell is cast using a spell slot of 2nd level or higher, the damage is increased by 1d6 per slot level.