Holy Guarding (Stronghold Augmentation)

Holy Guarding: When creating this augmentation, choose one face of the wall. Any good character on the chosen side of the wall (or standing atop the wall) gains a +4 deflection bonus to AC and a +4 resistance bonus on saves. They also gain spell resistance 25 against evil spells and spells cast by evil creatures. Furthermore, they are protected from possession and mental influence as per protection from evil.
Caster Level: 15th; Prerequisites: Craft Wondrous Item, holy aura; Market Price: 50,000 gp.