Electric Arc

A bolt of lightning arcs toward a creature within range. Make a ranged spell attack against the target. On a hit, the target takes 1d6 lightning damage, on a hit the arc automatically jumps to another target of your choosing within 10ft of the first target. This second target takes half damage.

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