Arc Flash

You cast a shimmering orb of electricity at one creature. Make a ranged spell attack roll, on a successful hit, electricity explodes from the orb in a  brilliant azure light. The creature takes 1d8+spellcasting modifier of lightening damage and must make a constitution saving throw or be blinded until the end of your next turn. All creatures within a 10' radius of the target must make a constitution saving throw or be blinded until the end of your next turn. If the spell does not hit the target, the ball of electricity dissipates with no other effect.