You can strike at foes that attack you using their superior reach, by targeting their limbs or weapons as they come at you.
Prerequisite: Base attack bonus +11.
Benefit: You can ready an action to make a melee attack against any foe that attacks you in melee, even if the foe is outside of your reach.
Pathfinder RPG Core Rulebook. Copyright 2009, Paizo Publishing, LLC; Author: Jason Bulmahn, based on material by Jonathan Tweet, Monte Cook, and Skip Williams.