You create the massive image of a solar eclipse occurring directly overhead.
At the start of your turn each round(while the spell is active), each creature within a 200-foot radius of you must make a Wisdom saving throw at disadvantage.
On a successful save, they ignore it and have advantage on the next save for this spell. Blind creatures automatically succeed.
On a failed save, they look directly at it and become incapacitated and blind for 1d8 rounds, taking 1d12 radiant damage each turn until they are no longer blind.   Ascended Spell. This spell costs 2 Spell slots to cast. A 6th-level spell slot and a 5th-level spell slot.