These heavily armored soldiers don’t train for maneuverability, but rather for immovability. Taking advantage of their weighty armor, border defenders can hold back an onslaught of enemies intent on breaking through their line. The majority of border defenders were laborers who joined the military to gain citizenship, though a noteworthy minority are from stouter non-human races.
This bonus also applies to the DC of foes’ Acrobatics checks to move through squares he threatens. This bonus is +1 when the border defender is wearing medium armor, and +3 when he is wearing heavy armor.
At 7th, 11th, and 15th levels, these bonuses increase by 1.
In addition to this, the border defender is able to choose one of the following combat maneuvers: bull rush, dirty trick, drag, grapple, overrun, reposition, or trip. When he is wearing medium or armor, the border defender adds half his armor training bonus feats on combat maneuver checks for the selected maneuver.
He can choose an additional combat maneuver at 7th, 11th, and 15th levels.
Pathfinder Player Companion: Armor Master’s Handbook © 2016, Paizo Inc.; Authors: Alexander Augunas, Robert Brookes, Anthony Li, Luis Loza, and David Schwartz.