Concussive Blast

You hold your palm out at a creature within range, sending a deadly sound wave towards them. The target must make a constitution saving throw, on  a fail they take 4d10 thunder damage and half as much on a success. On a failed save the target is also stunned until the end of your next turn.

At higher levels. When you cast this spell using a spell slot for each level above 3rd it deals an additional 1d10 damage