The executioners kiss is a glove-mounted weapon usually mounted on the back of the left hand. It appears somewhat like a punch dagger, but really is a syringe for injecting a small but lethal dose of acid. It is not really designed to be used in combat, but rather to kill helpless creatures when they are down, especially regenerating creatures.
The glove mount arrangement frees up the hand for other use. A handheld version of the weapon is available at the same cost, but requires the full use of a hand. The merit of the handheld weapon is that it can be concealed.
If the weapon inflicts any wound points, it also injects acid that does an equal amount of wound points - effectively doubling the wound points the weapon inflicts as long as the target is not acid resistant.