Bolt Strike

The user surrounds itself with a great amount of electricity and charges its target. The target must make a Constitution saving throw. A creature takes 1d10 lighting damage on a failed save and leaves the target paralyzed for 2 hours, or half as much damage on a successful one and leaves the target paralyzed for 1 hour..

This spell's damage increases by 1d10 when you reach 5th level (2d10), 11th level (3d10), and 17th level (4d10).