Chaos light

A Chaotic light shines from every inch of your body, bathing the area in its light. Each creature in a 40-foot-radius sphere centered on you must make a Dexterity saving throw. The sphere spreads around corners. A creature takes 20d10 universal damage on a failed save, or half as much damage on a successful one.

Each creature within a 20-foot-radius if you receives an additional 1d4 fire, cold, lightning, psychic, thunder, necrotic, radiant, poison, acid, force, bludgeoning, slashing, and piercing damage to their next attack.