Ambidexterity

Your off-hand is just as strong as your primary hand. Prerequisite: Str 13, Dex 15, Two-Weapon Fighting Benefit: You can use your full strength modifier on damage done with off-hand attacks. This feat has no benefit when fighting with a two-handed weapon or fighting with a single weapon. Special: A fighter may select Ambidexterity as one of his fighter bonus feats. Normal: You only apply half your strength modifier to damage done with off-hand attacks.