Tempestuous Roar

You roar with an ancient tongue that magically destroys all around it.. Each other creature within 20 feet of you must make a Constitution saving throw. On a failed save, a creature takes 6d6 thunder damage, is pushed 10 feet away from you, and is knocked prone. On a successful save, the creature takes half as much damage and isn't pushed.

In addition, unsecured objects that are completely within the area of effect automatically fail this saving throw, and the spell emits a thunderous boom audible out to 1000 feet.

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 4th.