Cataclysm

You unleash a cataclysmic wave of annihilation that erupts from you in all directions. The wave tears through the landscape automatically disintegrating nonmagical objects and creations of magical force within 120 feet of you. All nonmagical difficult terrain, vegetation, and structures in the area are destroyed, leaving the area a flattened circle of barren land.

Each creature within the area must make a Constitution saving throw. On a failed save, a creature takes 12d12 + 120 force damage, or half as much on a successful one. If this damage reduces a creature to 0 hit points, it is disintegrated. A disintegrated creature and everything it is wearing and carrying, except magic items, are reduced to a pile of fine gray dust. The creature can be restored to life only by means of a true resurrection or a wish spell.