Demonic Lightning Bolt

A stroke of blood red lightning forming a line 100 feet long and 5 feet wide blasts out from you in a direction you choose and stabs through its target like a spear. Each creature in the line must make a Dexterity saving throw. A creature takes 5d6 lightning damage and 1d6 Piercing Damage on a failed save, or half as much damage on a successful one.

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