Needs review
Source: Rokugan Campaign Setting

Description: You are adept at wielding your strength to your best advantage while using two weapons

Prerequisites: Base Attack Bonus +3, STR 15, Two-Weapon Fighting

Required for: Prayer's End

You gain your full strength bonus to all damage with your off hand weapon. This feat applies to double weapons as well.

Normal

Only one half of your strength bonus can be applied to damage dealt with your off-hand weapon.