Adjust Power Attack (Combat)

Your physical combat prowess is finely tuned to the point that you can shift your muscles in order to deliver a more effective attack.

Prerequisite: Str 17, Power Attack

Benefit: Once per round you may activate or deactivate the Power Attack feat before an attack roll is made, even if it is not your turn (e.g. an attack of opportunity).

Normal: Power Attack may only be activated on your turn and lasts for an entire round.