Electrocution

Electrical currents wreathe one creature you can see within range. The target must make a Dexterity saving throw. It has disadvantage if it is wearing metal armor. It takes 8d6 lightning damage on a failed save, or half as much damage on a successful one. On a failed save, the target is also shocked and can't take reactions for the spell’s duration. At the end of each of its turns, the target repeats the saving throw. It takes 4d6 lightning damage on a failed save, and the spell ends on a successful one.