At 3rd level, a steel-breaker receives additional training in sunder combat maneuvers. She gains a +2 bonus when attempting sunder combat maneuver checks and a +2 bonus to her CMD when defending against this maneuver. At 7th level, these bonuses increase by 1, and she gains a +2 bonus on disarm combat maneuver checks and a +2 bonus to her CMD when defending against a disarm combat maneuver. At 11th, 15th, and 19th levels, all of these bonuses increase by 1. This ability replaces maneuver training.
