Initiation Time: 1 action
Range: 90 feet
Duration: Instantaneous
Brilliant light flashes in a 30-foot radius centered on a point you choose within range. Each creature in that area must make a Constitution saving throw. On a failed save, a creature takes 12d6 fire damage and is blinded for 1 minute. On a successful save, it takes half as much damage and isn't blinded by this form.
A creature blinded by this form makes another Constitution saving throw at the end of each of its turns. On a successful save, it is no longer blinded.
At Higher Levels. When you initiate this form at a higher level, the damage increases by 1d6 for each level above 5th.