Lightning Storm Blade

As part of the action used to cast this spell, you must make a melee attack with a weapon against one creature within the spell's range, otherwise the spell fails. On a hit, the target suffers the attack's normal effects, and you channel lightning through the target to assault additional creatures. Choose up to three creatures you can see within 30 feet of the target.  The target and any additional creatures selected each take 1 point of lightning damage. This spell's damage increases when you reach higher levels.

At Higher Levels: This spell's lightning damage increases by 2 when you reach 5th level (3), 11th level (5), and 17th level (7).