A while back I began enjoying being able to distribute neg levels, so I've set out to create a build that could neg mobs as quickly as possible.
I'm now about to TR out of it, but it's worked so well and was so much fun, that I've decided to share it with the community. hope you enjoy it as much as I have
12 ranger for 100% off-hand strikes, 5 rogue for dagger mastery (30% crit with daggers)
using sacrificial daggers (the strength draining kind) in shadow form (drains strength on crits) from the shadow dancer ED.
Heroic feats (I went with halfling for better self healing):
stats are max dex, 16 const, and enough int to get you CE @ lvl 15. you could raise the int higher and trap without a problem, or pick up w/e other skills suit your style of play.
those are the basics of it, end result is 25% incorporeal from shadow form, 25% dodge, and around 50% miss chance from AC, without needing uber gear.
level + strength draining means you won't be hit much, would kill fairly quick, and make EEs so much easier for everyone involved.