Thunderbolt

A churning storm cloud forms, centered on a point you can see and spreading to a radius of 60 feet. Lightning flashes in the area, thunder booms, and strong winds roar.

When you cast the spell, choose a creature or object you can see beneath the cloud. A bolt of lightning flashes down from the cloud to strike the creature or object you choose. A struck creature must make a Dexterity saving throw. A creature takes 10d8 lightning damage is paralyzed for 1 round on a failed save, or half as much damage and isn't paralyzed on a successful one.

Additionally, each creature within 10 feet of the target must make a Constitution saving throw. A creature takes 2d8 thunder damage is deafened for 1 minute on a failed save, or half as much damage and isn't deafened on a successful one. A creature deafened by this spell makes another Constitution saving throw at the end of each of its turns. On a successful save, the creature is no longer deafened.

If you are outdoors in stormy conditions when you cast this spell, the spell gives you control over the existing storm instead of creating a new one. Under such conditions, the spell's damage increases by 2d8.

At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, the lightning damage increases by 1d8 for each slot level above 5th.