Valiant

This special ability can only be placed on melee weapons. When a cavalier wielding a valiant weapon targets a foe with his challenge ability, the valiant weapon deals an additional 1d6 points of damage against that foe. The wielder receives a +2 bonus on combat maneuver checks made to disarm or sunder a challenged foe's weapon as well as a +4 bonus to his CMD against disarm and sunder attacks from that foe.