Binding Bolt

Throw a bolt of lightning at a creature within range. Make a ranged spell attack against the target. On a hit, the target becomes tethered in place by the bolt until the start of your next turn. If the target willingly moves more than 5 feet before then, the tether will break, and it immediately takes [roll]1d6[/roll] lightning damage. If this happens, the spell ends.

This spell's damage increases when you reach higher levels. At 5th level, the target takes [roll]1d6[/roll] lightning damage on a hit, and the damage the target takes for moving increases to [roll]2d6[/roll]. Both damage rolls increase by 1d6 at 11th level and 17th level.