You protect and avenge your allies with ferocious strikes and fending blows.
Prerequisites
Combat Expertise, Combat Reflexes, Guardian Angel Style, base attack bonus +8.
Benefit
When an opponent tries to attack the ally you are defending with Guardian Angel Style, you can choose to either defend or avenge your ally.
If you defend your ally, you can use an attack of opportunity to make an opposed attack roll against the attacking creature. If your attack roll is higher than the attacker’s attack roll, the attacker’s attack fails. This is not an attack and deals no damage to the attacker.
If you choose to avenge your ally, you gain an attack of opportunity against the attacking opponent after resolving that attack. You do not take the normal penalty to attack rolls from Combat Expertise when making this attack, and the attack deals an additional 1d8 damage. This extra damage is the same type as the weapon used and is not multiplied on a critical hit.