Thunderbolt

You hurl a crackling bolt of lightning at a target within range. Make a ranged spell attack against the target. On a hit, the target takes 2d8 lightning damage, and all creatures within a 10-foot radius of the target must make a Dexterity saving throw. On a failed save, they take the full lightning damage and are paralyzed for 1 round. On a successful save, they take no damage and are not paralyzed.

At Higher Levels: When you cast this spell using a spell slot of 3rd level or higher, the damage increases by 1d8 for each slot level above 2nd. Additionally, the radius of the area affected by paralysis increases by 5 feet for every level above 2nd.