A beam of 100-foot-long, 5-foot-wide linear lightning bursts out from your location in any direction you specify. Each creature in the linear area must make a Dexterity save. Those who fail the save will take 8d6 lightning damage. If the save succeeds, the damage is halved.
Lightning Bolt 5e
Classes: Wizard, Sorcerer
Casting Time: 1 Action
Components: V, S, M
Lightning will ignite combustible objects in the area that are not worn or carried. When using a 4th-level or higher spell slot to cast this spell, the damage will increase by 1d6 for every 3rd-level spell slot you use.