Eberron
Whirling Steel Strike
Through monastic weapon training, you have mastered a fighting style that makes use of an unusual monk weapon: the longsword.
Prerequisites: Martial Weapon Proficiency (longsword), Weapon Focus (longsword), flurry of blows class feature.
Benefit: You can treat a longsword as a special monk weapon, allowing you to perform a flurry of blows with it.