Blinding Corona

You weave a tapestry of shimmering light around you, pulling from your inner radiance or borrowing it from your favorite astral body, to bewilder and burn any creatures within a 15-foot Emanation centered on you.

When you cast this spell, you can designate creatures to be unaffected by it. Whenever the Emanation enters a creature’s space and whenever a creature enters the Emanation or ends its turn there, they must make a Constitution saving throw. On a failed save, they become Blinded and they take 2d6 Radiant damage. On a success, the damage is halved and the creature isn’t blinded.

At the end of their turn, Blinded targets may roll a Constitution saving throw to remove the condition. After saving, targets are unable to be Blinded by this spell again for 1 hour.

Using a Higher-Level Spell Slot. The damage increases by 1d6 for each spell slot level above 1.