You tap into the emotions of others to sustain you. On each of your turns, for the duration of the spell, you restore one hit points at the beginning of your turn, plus an an amount of hit points, at the end of the turn, equal to the 1/2 the damage inflicted by the warlock that turn. These additional hit points can be used to restore your own hit points or a creature within 30’. Unlike Siphon, this spell includes all damage done by the warlock including buffs, invocations and class features.