Boomerang Lightning

Throw a boomerang made of pure lightning toward a target you can see within 60 feet. The boomerang then ricochets from that target to as many as two other targets, which must be within 30 feet of the previously struck target. A target is considered as a creature, object, or terrain item, and can be targeted by one of the ricochets.

Each target makes a Dexterity saving throw against your Spell DC, taking 2d4 + Your Spellcasting modifier in Lightning damage on a failed save or half as much damage on a successful one.

Using a Higher-Level Spell Slot. One additional bolt leaps from the first target to another target for each spell slot level above casting as a Cantrip.