Stone Power

 
Prerequisite(s): Str 13+, one Stone Dragon maneuver.
 
Benefit: When you use an attack action or a full attack action, or you initiate a Stone Dragon strike in melee combat, you can take a penalty of as much as -5 on your attack rolls. This number cannot exceed your base attack bonus. You gain temporary hit points equal to twice the number that you subtract from your attack rolls (to a maximum of+10). These temporary hitpoints last until the beginning of your next turn.
 
Special: Stone Power can be used in place of Power Attack to qualify for a feat, prestige class, or other special ability. You can take both this feat and Power Attack.
 
Source: Tome of Battle: The Book of Nine Swords