Thunderous Applause

You clap your hands and create an echoing applause that rings in all nearby creatures' heads. they must pass a Wisdom saving throw, or be overwhelmed by the clapping, joining in. On each of the creatures' turns, they can make a saving throw, on a failed save they are classified as stunned until they succeed in the saving throw until the concentration is broken, or until they take damage from an external source. All creatures affected by this on the casting round take 3d8 thunder damage, and on all subsequent rounds, take 4d6 psychic damage.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the damage increases by 1d8 and 1d6, respectively.