Aine's Solar Swarm

Swarms of butterflies/moths fill the affected area before exploding in a flash of flames and blinding light. Creatures in a 10-foot radius sphere centered on a point within range must make a Dexterity saving throw or take 4d6 fire or radiant damage (your choice) and become blinded for the duration. Creatures that succeed the save take half damage and aren't blinded. Affected creatures can repeat the save at the end of their turns. On a success, it is no longer blinded.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the damage increases by 1d6 for each slot level above 2nd.