Rapier Wit (3.5e Maneuver)

Your tongue lashes out, as does your blade, hurting your opponent’s ego at least as much as his body.

While using this maneuver, your critical hit range doubles (from 20 to 19-20, from 19-20 to 17-20 and from 18-20 to 15-20) and you can use your Dex modifier on your attack roll instead of your Str modifier. You may do this with any weapon, but if you have Improved Critical for that weapon or are using a keen weapon, your critical hit range does not double again.