Binding Jolt

A bolt of crackling energy streaks toward a creature within range. Make a ranged spell attack against the target. On a hit, it takes 1d6 lightning damage.  It has disadvantage on the next weapon attack roll it makes before the end of its next turn, due to the residual electricity partially locking up the target's muscles; creatures without muscles are immune to this effect.

The spell's damage increases by 1d6 when you reach 5th level (2d6), 11th level (3d6), and 17th level (4d6).