Phalanx Fighting
( Lords of Darkness, p. 189)[Fighter Bonus Feat, General]
You are trained in fighting in close formation with your allies.
Prerequisite
Benefit
If you are using a large shield and a light weapon, you gain a +1 armor bonus that stacks with the bonus provided by armor and shield.
In addition, if you are within 5 feet of an ally who is also using a large shield and light weapon and who also knows this feat, you may form a shield wall. A shield wall provides one-quarter cover (+2 to AC and +1 on Reflex saves) to all eligible characters participating in the shield wall.