Abyssal stars

The users eyes fill with the far realms stars and these stars in turn shoot out of the users eyes. the targets most roll a dexterity saving throw with a dc of 10. on a failed save they take 1d10 radiant damage. and when you want to hit multiple targets (maximum of three) you have to divide the number you roll among each of the targets. the target has disadvantage on perception saving throws the next 24 hours do to the light also flashing in his eyes.