You snap your fingers in the direction of the creature visible within the distance and a small charge of electricity rushes into it. Perform a long-range spell attack on the target. When hit, the target takes 1d6 lightning damage.
You can also use an action to cast this spell. In this case, perform two long-ranged spell attacks, you can choose different targets.

The damage of this spell increases by 1d6 when you reach 5th level (2d6), 11th level (3d6), 17th level (4d6).

[Tome of spells: Lightning]