You send a streak of lightning arcing from your hand towards a creature you can see within range. Make a ranged spell attack against that creature. On a hit, that creature takes 1d6 lightning damage. Whether you hit or not, each creature in the line between you and the attacked creature must make a Dexterity saving throw or take 1d6 lightning damage on a failed save.

This spell's damage against the attacked creature increases by 1d6 when you reach 5th level (2d6), 11th level (3d6), and 17th level (4d6).