dropped for me tonight off a juggernaut (as per original drop info listed here --though it's been years since anyone posted on this item). I have killed 100s of jugs farming spells/aas. This item doesn't drop often -I definately haven't seen it in my last 100-200 kills.
This might matter on a progression server where this item would have a sweet spot of being a very good dagger (especially if handed down to an alt). If I had the choice of paying a couple of hundred plat (on progression) or having to kill several hundred jugs at level 60...