Shielded Fortress (Ex)
Replaces: Weapon Mastery
At 20th level, a phalanx fighter’s shield cannot be disarmed or sundered. He gains evasion (as a rogue) when using a shield (improved evasion when using a tower shield). As a move action, a phalanx fighter can provide evasion to all adjacent allies until the beginning of his next turn. As an immediate action, he can provide improved evasion to an adjacent ally against one attack. This ability replaces weapon mastery.