Chaotic orb

A bright streak flashes from your pointing finger to a point you choose within range and then blossoms with a low roar into an explosion of flame. Each creature in a 20-foot-radius sphere centered on that point must make a Dexterity saving throw. A target takes 1d4 fire damage, 1d4 cold damage, 1d4 lightning damage, 1d4 thunder damage, 1d4 psychic damage, 1d4 necrotic damage, 1d4 radiant damage, 1d4 poison damage, 1d4 force damage, and 1d4 acid damage on a failed save, or half as much total damage on a successful one.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, you add 1d8 additional damage per spell slot above 3rd level