Vampiric Touch

At 3rd level, and every two levels thereafter, a sorcerer learns an additional spell, derived from her bloodline. These spells are in addition to the number of spells given at new levels. Vampiric Touch: You must succeed on a melee touch attack. Your touch deals 1d6 points of damage per two caster levels (maximum 10d6). You gain temporary hit points equal to the damage you deal. You can't gain more than the subject's current hit points + the subject's Constitution score (which is enough to kill the subject). The temporary hit points disappear 1 hour later.