Strat goes as follows, you need 3 people; RDM RDM NIN, Or RDM BRD NIN. The RDM sleepgas the charmed people, and dispells their charm, then the NIN vokes lamia and the RDM/BRDs buff them, while the Nin DDs. If she happens to recharm them, (the move is belly dance IIRC) sleepga to kill NINs shadows, and one mage kites lamia, while other uncharms nin and wakes him up, when nin has hate, dispel the trooper, wizard, and other thing, and repeat.
The "pets" will pretty much do the killing for you if they stay uncharmed.
I got bow on the fourth run of this place, pretty nice, too bad I can't use it..
i believe it comes from or is available from the items Imperial Guards have when u spend ISP points through them! it may be rank 6 or higher.next time u in Whitgate or AlZabhi, check out what your nearest Imperial Guard has to offer... some stuff is pretty neat!^^