Your hands arc with electricity as you create 5 lines, each 100 feet long and 5 feet wide, emanating from you in directions of your choice. Each line has its own direction and can overlap, but they must all fit within a 180 degree angle from you. Each creature within the area of a line must make a Dexterity saving throw. On a failed save, a creature takes 8d6 lightning damage plus 1d6 additional lightning damage for each line's area that they are within beyond the first, or half as much damage on a successful save.

The lightning ignites flammable objects in the area that aren’t being worn or carried.

At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, you create an additional line of lightning for each slot level above 5th.