Vampiric Touch
School: necromancy
Level: Arcanist 3, Wizard 3, Sorcerer 3, Witch 3, Magus 3, Bloodrager 3, Antipaladin 3, Psychic 3, Mesmerist 3, Spiritualist 3, Medium 3
Casting Time: standard action
Components: V, S
Range: touch
Target: creature touched, living (1)
Duration: instantaneous/1 hour (see text)
Saving Throw: none
Spell Resistance: yes
Source: Pathfinder Core Rulebook, p. 364
Description
You must succeed on a melee touch attack. Your touch deals 1d6 points of damage/2 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.
Mythic Vampiric Touch
The spell’s damage increases to 1d8 points of damage per 2 caster levels (maximum 10d8). Your melee touch attack to deliver the spell threatens a critical hit on a 19 or 20. This expanded threat range doesn’t stack with other effects or abilities that increase the threat range. If the damage kills the target, you gain fast healing 5 for a number of rounds equal to the Hit Dice of the target.
Mythic Adventures, page 111