Zen Swordsmanship (3.5e Feat)
From D&D Wiki
 Zen Swordsmanship [General]
Your take the art of swordsmanship with a serene and zen mind.
Prerequisite: +4 Attack bonus, Weapon Focus (any sword), Wisdom 12 or higher
Benefit: You may add your Wisdom modifier instead of your strength modifier to your attack rolls with any sword (Longsword, Bastard Sword etc...) with which you have weapon focus.
Normal: You may only use strength for attack rolls.