Crescent Wave Slash

As you make a horizontal slashing motion with your hands, spellcasting focus, or a weapon, a layer of water forms around it and then flies outwards . each creature in a 15 ft. cone must make dexterity saving throw. A creature takes 3d8 slashing damage and is blinded until the beginning of their next turn on a failed save or takes half as much damage and is not blinded on a successful save.

At higher levels: When casting this spell using a 3rd level slot or higher, the damage increases by 1d8 for each level above 2nd