Thunderbolt

Choose a target within range with at least 60 feet of free space above them. As thunderbolt strikes down, forcing the target, as well as any other creatures within 5 ft. of them to make a Dexterity saving throw, taking 2d10 lightning damage plus 1d10 thunder damage, or taking half damage on a successful save.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the lightning damage increases by 1d10 for each slot level above 2nd.