Blinding Lash

A flash of blinding light reaches out from your outstretched hand, lashing out to your foe and striking at their vision, arcane glyphs and symbols forming around their eyes and soul in an attempt to blind them temporarily.
On a hit the target takes 2d8 radiant damage and must make a charisma saving throw against being blinded for one round.
At each level above first the radiant damage increases by 1d8 and time the target is blinded increases by 1 round.