Pursue

Combat Reflexes (PH) ,

In combat, when an opponent in an adjacent square takes a single 5-foot step to a square that you do not threaten, you can spend 1 action point to move into the square the opponent just left. This movement occurs after the 5-foot step but before any other actions, and it does not provoke attacks of opportunity.

In combat, when an opponent in an adjacent square takes a single 5-foot step to a square that you do not threaten, you can spend 1 action point to move into the square the opponent just left. This movement occurs after the 5-foot step but before any other actions, and it does not provoke attacks of opportunity.

You have the ability to follow in an opponent’s wake.