Voltaic Arc

You release three bolts of electricity that arc towards targets within range. You can choose one creature or several.

Make a ranged spell attack for each bolt. On a hit, the target takes 2d6 lightning damage, and if two or more creatures are struck while within 10 feet of each other, they take an additional 1d6 lightning damage.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, you create one additional bolt for each slot level above 2nd.