Stoneback
( Races of Stone, p. 144)[General]
You have studied the techniques of fighting underground, and you can protect yourself from the dangers of multiple attackers whenever you can put your back to a solid wall.
Prerequisite
Tunnel Fighting (RS) , Shield Profi ciency,
Benefit
If you have a ready shield with which you are proficient and one side of your space is entirely in contact with a solid wall, you cannot be flanked.
Special
A fighter may select Stoneback as one of his fighter bonus feats (see page 38 of the Player's Handbook).