Voltaic Smite

The next time you hit a creature with a weapon attack during this spell's duration, your weapon produces an electric charge, and the attack deals an extra 3d8 lightning damage. Additionally, the target must succeed on a Constitution saving throw or be Incapacitated until the spell ends.

A creature incapacitated by this spell makes another Constitution saving throw at the end of each of its turns, and whenever it takes damage. On a successful save, it is no longer incapacitated.