Is there a feat that grants a character a Wisdom bonus to attacks, in the same manner as Weapon Finesse does for Dexterity? I can only remember Zen Archery.
Intuitive Attack, I think, an exalted feat from the Book of Exalted Deeds. Works only with simple weapons and possibly natural attacks and unarmed strikes, though.
I'm trying to max out a swordsage, but the primary downside is the feat tree (improved unarmed, superior unarmed) and the fact that I'll have to load up an amulet of mighty blows.