Energy Arc

You hurl a sizzling bolt of electrifying energy at a creature or object within range. Make a ranged spell attack against the target.  On a hit, the target takes 1d4 lightning damage and up to 3 enemies within arc's range of 10 feet from target must make a Dexterity saving throw. On a failed save,  each target takes 1d4 lightning damage.  On a miss, Energy Arc does nothing.

This spell's damage increases by 1d4 when you reach 5th level (2d4), 11th level (3d4), and 17th level (4d4).

The spell's range increases by 30ft when you reach 5th level (60ft), 11th level (90ft), and 17th level (120ft).

The spell's arc range increases by 10ft when you reach 5th level (20ft), 11th level (30ft), and 17th level (40ft)

The spell's additional enemies within the arc's range from target increase by 1 when you reach 5th level (4), 11th level (5), and 17th level (6).