How about:
Human Monk 2, Fighter 4, (anything else to maximize your BAB: 2 more levels of monk, more fighter or whatever) (use OA rules for monks)
Str 18, Dex 15, Con 13, Int 13, Wis 19, Chr 10
Feats: Freeze the Lifeblood, Deathblow, Expert Tactician, Combat Reflexes, Dodge, Mobility, Spring...