Maznafein

Maznafein was a drow wizard, turned drider, who lived in the Underdark far below Icewind Dale.

History
The drider was once a powerful drow wizard living in Menzoberranzan. However, he detested the ways of Lolth ans was subsequently transformed into a drider by a priestess of Lolth.

Surprisingly, he still retained some of his spirit in his new form, and did not attack the companions. He requested that the companions search out a merchant of the name Ssar Tarell, so that she may turn him back to his original drow form. He trusted in the companions' honor and in return, gave them a Scroll of Spider shape, to move across the otherwise impassable chasm.