Sunstrike

Harnessing the blinding light of the sun, you strike with such brilliance that your foe is left dazzled and disoriented. After landing a successful attack, you can attempt to blind your target with a burst of radiant energy.

The target must make a Constitution saving throw (DC = 8 + your Dexterity modifier + your proficiency bonus). On a failed save, they are blinded for the next 2 turns, overwhelmed by the brilliance of your strike.