Crackle

You create three arcs of lightning, striking targets in range. You can direct them at one target or at several.

Make a ranged spell attack for each arc. On a hit, the target takes 1d12 lightning damage. If three or more arcs hit a single target, they must succeed on a Constitution saving throw or be stunned until the beggining of their next turn.

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