Thunder Pulse

A thunderous wave in the form of 30-foot cone blasts out from you in a direction you choose. Each creature in the cone must make a Strength saving throw. A creature takes 8d6 thunder damage on a failed save, or half as much damage on a successful one. Every creature that fails the save and unsecured objects are pushed 15 feet away from you.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d6 for each slot level above 3rd.