Basic Rules , pg. 255
Lightning Bolt
3-level
Evocation
Casting Time 1 Action
Range Self (100 ft)
Duration Instantaneous
Components V, S, M
Materials A bit of fur and a rod of amber, crystal, or glass.
Damage Type: Lightning
Saving Throws: Dexterity
Description: A stroke of lightning forming a line 100 feet long and 5 feet wide blasts out from you in a direction you choose. Each creature in the line must make a Dexterity saving throw. A creature takes 8d6 lightning 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.
At higher levels: When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d6 for each slot level above 3rd.
Class(es): Sorcerer, Wizard