Helm of the Fallen Defender is a tier 4 armor token. It can be exchanged at Asuur at Shattrath's Aldor Rise or Arodis Sunblade on the Scryer's Tier for the following items:
It can also be exchanged at Karynna at the Isle of Quel'Danas for the following Season 1 PvP items:
This item drops from Prince Malchezzar in Karazhan.
Patches and hotfixes
Patch 2.4.0 (25-Mar-2008): Can now be traded for PvP gear on the Isle of Quel'Danas
Patch 2.0.3 (09-Jan-2007): Added