Stygian Touch

You form a momentary link between yourself and the Negative Energy Plane, allowing you to suffuse your hands with negative energy so that your touch weakens the life force of living creatures. Each touch channels negative energy that bestows one negative level on the target and grants you 5 temporary hit points. Both the negative level and the temporary hit points last for up to 1 hour. A successful Fortitude save negates the negative level and prevents you from gaining the temporary hit points. You can use this melee touch attack once per manifester level.

An undead creature you touch gains 5 temporary hit points that last for up to 1 hour, and you lose 5 hit points (no save).

Augment: For every 2 additional power points you spend, a negative level you bestow on a particular melee touch attack that you designate lasts for 24 hours, causing a possible level loss if not removed before then.