I was thinking of a shuriken / unarmed hybrid using this level split.
Feats:
Monk (3): TWF, Precision, TTS
Heroic (8): PBS, Rapid Shot, Shuriken Expertise, Precise Shot, ITWF, IC:Blunt, GTWF, Master of Forms (or choose drow for free Shuriken Expertise)
Ftr (1): IPS
Epic (4): Overwhelming Crit, Imp Sneak Atk, GM of Forms, and (Epic DR / Blinding Speed / IC:Thrown)
ED (3): PTWF, Doubleshot, Dire Charge or Embodiment of Law
Legendary: Ethereal Plane
Idea is to use TTS for lots of hits to build Poison stacks on targets, fists to finish them (any wraps w/Poison dmg?) -> rinse, repeat. Drawback is Shintao / Ninja DCs are based on # of monk lvls, so on a heavily-MCed build like this without ftr tactics feats, it could be too challenging to get your DCs high enough.
But even so, you're still talking about a build with a high atk rate and lots of SAs, so a lack of DPS shouldn't be a major concern.