(Armor Mastery, Combat)
Your armor allows you to push your opponents around.
Prerequisites
Poised Bearing, base attack bonus +11 or
Fighter level 8th, armor training class feature, proficiency with heavy armor.
Benefit
You treat your size as two categories larger for the purposes of determining the size of creatures against which you can attempt
Bull Rush,
Drag,
Overrun, and
Trip combat maneuvers.