This item is purchased from Almaador in the Terrace of Light in Shattrath City. You must be Honored with The Sha'tar to buy this item.
TBC Patch 2.3.0 (patch date::13-Nov-2007): Changed amount of reputation required.
Went from revered to honored
Cataclysm Patch 4.2.0 (patch date::28-Jun-2011):
All heroic BC instance keys have been discontinued. All heroic BC instances can now be entered at any reputation level.