Paralytic Weapon

Weapon (any), rare (requires attunement)

A paralytic weapon delivers a pulsing electrical charge.

On a successful hit it deals an additional 1d4 lighting damage.

A creature that takes lightning damage from this magic weapon must succeed on a DC 13 Constitution saving throw or suffer disadvantage on attack rolls and ability checks until the end of its next turn. The creature has disadvantage on saving throws made against hits from paralytic weapons during this time, and if it fails such a save it is paralyzed until the end of its next turn. A creature that makes its saving throw is immune to these effects from that paralytic weapon for the next 24 hours. Unless it is immune to lightning damage, a creature reduced to 0 hit points by this weapon can be knocked unconscious instead of killed if the wielder chooses.