A cavalier belonging to the order of the seal gains the following abilities as he increases in level.
At 2nd level, once per day the cavalier must select a location, or a secret that he has sworn to protect. If he chooses a location, he gains a +2 morale bonus on attack rolls when directly defending his charge. If he chooses a secret, he gains a +2 morale bonus on saving throws and opposed checks to resist revealing information about his charge. He gains these bonuses until he picks a new object, location, or secret to protect.
I Shall Not Be Moved
At 8th level, the cavalier can draw on his dedication to overcome physical weakness. Whenever the cavalier does not move more than a 5-foot step, he receives a +2 dodge bonus to his CMD to resist bull rush, overrun, reposition, and trip combat maneuvers until his next turn.
At 15th level, the cavalier can drive opponents back without giving ground. As a full-round action, the cavalier can make a single attack at his highest attack bonus. If the attack hits, the attack does damage as normal, and the cavalier may attempt a bull rush against the target. The cavalier gains a bonus on the bull rush combat maneuver check equal to half the amount of damage dealt on the initial attack.