How's this:
Drow Swordsage 5/Bloodclaw Master 5 (Both from Book of Nine Swords)
Feats:
1 - Shadow Blade
1 - Weapon Focus (Dagger) (Bonus!)
3 - Two-Weapon Fighting
6 - Quick Draw
9- Improved Two-Weapon Fighting
Stats: High Str, Dex, Medium Con, Low mental
What he does: he has scent, rend, and no two-weapon fighting penalties. Adds full str to his offhand and adds dex to damage for both weapons. And has ToB maneuvers for teleporting, hiding, dmg, etc.