Needs review
Source: Secrets of the Phoenix

Description: You can continue fighting even after your body has been destroyed if your soul is willing.

Prerequisites: Base Attack Bonus +8, Void Use, Depths of the Void

Any time you are reduced below zero hit points, you may automatically spend two Void Points to immediately gain temporary hit points equal to twice your maximum Void. These temporary hit points last for one minute per character level. If you have not been healed above zero hit points before this effect ends, you suffer the normal penalties. You may use this feat if you are knocked below -10 hit points with a single attack. You may use this feat if helpless or unconscious. Note that temporary hit points gained from the same source, such as this feat, do not stack.