Strength of Stone p. 85

Stone Dragon

Level: Crusader 8 , Swordsage 8 , Warblade 8
Prerequisite: 3 Stone Dragon maneuvers
Initiation Action: 1 swift action
Range: Personal
Target: You
Duration: Stance

You enter an impenetrable defensive stance, making it almost impossible for an attack to strike you in a vulnerable area.

While you are in this stance, you focus your efforts on preventing any devastating attacks from penetrating your defenses. You are immune to critical hits while you are in this stance. This stance immediately ends if you move more than 5 feet for any reason, such as from a bull rush attack, a telekinesis spell, and so forth.