You are an impassable mountain, hurling your enemies back.
Benefit: If an opponent fails at a combat maneuver against you, you can use an attack of opportunity to make a melee attack against the opponent using your highest attack bonus. If the attack hits, instead of dealing damage, you can push the opponent back 5 feet for every 5 by which it failed its combat maneuver check (minimum 5 feet). Additionally, when you hit with an unarmed melee attack against an opponent who provoked an attack of opportunity by failing its Acrobatics check to move through a space you threaten, you can push the opponent back 5 feet instead of dealing damage. The opponent moves back in a straight line, but stops before hitting any obstacle or hazard.
Pathfinder Roleplaying Game Ultimate Wilderness © 2017, Paizo Inc.; Authors: Alexander Augunas, John Bennett, Robert Brookes, John Compton, Dan Dillon, Steven T. Helt, Thurston Hillman, Eric Hindley, Mikko Kallio, Jason Keeley, Isabelle Lee, Jason Nelson, Stephen Radney-MacFarland, Alex Riggs, David N. Ross, David Schwartz, Mark Seifter, Jeffery Swank, and Linda Zayas-Palmer.