Ethereal Demon Limb.

192% ED, not sure if it makes much difference. 140-254 damage, 10% life steal.

I'm by no means an expert, but I don't think that would be worth much. Even ethereal,

Demon Limb just doesn't have good enough damage (or IAS for that matter) to perform in Hell.

Main draw of

Demon Limb is the

Enchant charges to buff your Attack Rating, but even self-repair like

Demon Limb has doesn't refill charges, so that aspect's moot.

Correct me if I'm wrong but I don't think you can recharge the ethereal version. I found an

Eth version as well and pitched it because of this.