Benefit: Once per day, a rogue with this ability can gain a number of temporary hit points equal to the rogue’s level. Activating this ability is an immediate action that can only be performed when she is brought to below 0 hit points. This ability can be used to prevent her from dying. These temporary hit points last for 1 minute. If the rogue’s hit points drop below 0 due to the loss of these temporary hit points, she falls unconscious and is dying as normal.
Pathfinder RPG Core Rulebook. Copyright 2009, Paizo Publishing, LLC; Author: Jason Bulmahn, based on material by Jonathan Tweet, Monte Cook, and Skip Williams.