Stare Down Death (3.5e Maneuver)

Some men burn with a fire that will not let them succumb to death, an unconquerable spirit that refuses to go gentle into that good night.

Unlike most maneuvers, you cannot actively initiate stare down death. Instead, if you have it readied (but not necessarily granted, if you are a Crusader) and are reduced to -1 hp or less (but not if you are reduced to -10 hp and die), it is automatically initiated, even if you are not conscious. You immediately make a stabilization check, adding your initiator level to the base 10% chance you have of stabilizing. In addition, if you successfully stabilize, then you regain a number of hit points equal to your Charisma score (not modifier). This maneuver can only be initiated once per encounter, unlike most.