Your defense extends to protect large groups from harm.
Prerequisites
Combat Expertise, Combat Reflexes, Guardian Angel Style, Avenging Guardian Strike, base attack bonus +12.
Benefit
Any time you use Combat Expertise to grant yourself a dodge bonus to AC, the dodge bonus is increased by 1. This stacks with the benefit from Guardian Angel Style.
When using Guardian Angel Style, you may create a defensive aura rather than designating a single ally. All allies within 10 feet of you gain a circumstance bonus to AC equal to half the bonus you granted yourself. If the ally is unconscious or helpless, they receive the full bonus rather than half. Affected allies lose the benefit if they move more than 10 feet away from you.
This also allows you to use Avenging Angel Strike for any affected ally.