Dazzling Burst

You radiate a searing light in a 20-foot radius sphere around you. Every creature within the area must succeed on a Constitution saving throw. On a failed save, creatures take 8d6 radiant damage and are blinded for 1 minute. Creatures take half damage on a successful save and are not blinded. At the end of each of its turns, a target repeats the saving throw. On a success, the blindness effect ends on that creature.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the damage increases by 1d6 for each slot level above 4th.