Leeching Fangs

A set of leeching fangs is a metal sculpture in the form of a fanged maw, and when applied to a weapon, it causes the weapon or its ammunition to grow numerous mouths filled with serrated teeth. Leeching fangs establish a metaphysical link between the life force of the wielder of the weapon it's applied to and those it damages. Whenever you deal Hit Point damage to a living creature with a weapon under the effect of leeching fangs, you heal yourself half the amount of Hit Point damage dealt. This cannot heal you above your maximum number of Hit Points.