Iron Heart Endurance(Tome of Battle: The Book of Nine Swords, p. 68)
Iron Heart (Boost)
Level: Warblade 6 (Two Iron Heart maneuvers),
Casting Time: 1 swift action
You push aside the pain of your injuries to fight on past mortal limits.
If you have half or fewer of your full normal hit points remaining, you can initiate this maneuver to heal hit points equal to 2 × your level.