Vermillion Scourge

A blazing orb of destruction erupts from you. Each creature in a  sphere centered on you choose must make a Dexterity saving throw. The sphere spreads around corners. A creature takes 200d6 fire damage and 200d6 thunder damage on a failed save, or 3/4 as much damage on a successful one. 

The spell destroys objects that are not immune to the fire and thunder damage types those that are take half damage from the spell. All creatures within 200 miles of the origin point of the spell are deafened permanently(can be cured with a greater restoration spell of 9th level or higher)