Leggings of the Forgotten Conqueror is a tier 6 armor token. It can be exchanged at Tydormu at the Hyjal Summit entrance for the following items:
It can also be exchanged at Soryn at the Isle of Quel'Danas for the following Season 2 PvP items:
This item drops from the Illidari Council in the Black Temple.
Patch 2.4.0 (2008-03-25): Can now be traded for PvP gear on the Isle of Quel'Danas
Patch 2.1.0 (2007-05-22): Added