Chaotic Expunge

This spell creates a sphere centered on yourself. The sphere can have a radius of up to 20 feet. The area within this sphere is filled with magical chaos and chaotic forces, but you are unaffected by both. 

For the duration, the spell’s area is difficult terrain. A creature with less than 13 Wisdom is unable to see within the area, and all other creatures have a disadvantage on the caster. No sound can be created within or pass through the area. Any creature or object entirely inside the sphere is immune to thunder damage, and creatures are deafened while entirely inside it. Casting a spell that includes a verbal component is impossible there. Again, unaffecting the caster. 

Any creature that enters the spell’s area for the first time on a turn or starts its turn there must make a Constitution saving throw. The creature takes 9d10 force damage on a failed save, or half as much damage on a successful one.