I've got one of these, and the place I've found it is most useful is in fungusgrove when I solo... pop out the bow, take a shot, swap back to the sv disease vial, and with the 20 sv poison/disease belt from umbral, and the ac19 sv disease +25 gauntlets from fungusgrove, you can be basically untouchable by all of the spells that the shrooms cast. works like a charm.
Grendon, Warlord of Rallos-Zek
Bristlebane Server