You briefly transform into a ball of lightning, shooting in a straight line 90 feet in a direction you choose before falling to the ground, stopping early if you impact against a solid surface. If you would strike a creature, that creature must make a Dexterity saving throw. On a failed save, you strike the target and stop moving. When you strike something, it takes 4d8 lightning damage. If no creature is struck by the spell, you take 2d8 lightning damage.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher the damage dealt to a struck creature increases by 1d8, for each slot level above 2nd.