Archmage Angela Dosantos at Light's Hope Chapel in the Eastern Plaguelands will make a Frostfire Belt if you bring her the following: 1 Desecrated Belt, 8 Wartorn Cloth Scraps, 2 Arcane Crystals and 2 Mooncloth.
As a Watcher, I was allowed access to many of Medivh's personal effects. Among those items, I found the tomes most enlightening. While the majority of the books were filled with - to put it bluntly - tripe, there were some gems. One of those tomes documented the creation of a set of armor fit for an archmage: Frostfire.
<Angela points to her head.>
It's all in here and I am willing to share the fruits of that knowledge with you as long as you are able to provide me with the necessary materials.
Rewards
Frostfire Belt
Binds when picked up
Waist
Cloth
75 Armor
+10 Spirit
+19 Stamina
+21 Intellect
Requires Level 60
Equip: Improves your chance to hit by 1.0%.
Equip: Increases damage and healing done by magical spells and effects by up to 28.
