Arcing Bolt

As part of the action used to cast this spell, you must make a ranged spell attack  against one creature or object within the spell’s range. On a hit, the target suffers the 1d6 lightning damage , and electricity leaps from the target to a different creature of your choice that you can see within 10 feet of the original target. The second creature takes lightning damage equal to your spellcasting ability modifier.

This spell’s damage increases when you reach higher levels. At 5th level, the ranged spell attack deals an extra 1d6 lightning damage to the original target, and the lightning damage to the second creature now leaps to a single new target within range & again at 11th & 17th level for a total of 5 targets total. Both damage rolls increase by 1d6 at 11th level and 17th level.