Archmage Angela Dosantos at Light's Hope Chapel in the Eastern Plaguelands will make a Frostfire Robe if you bring her the following: 1 Desecrated Robe, 25 Wartorn Cloth Scraps, 4 Mooncloth and 2 Nexus Crystals.
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 Robe
Binds when picked up
Chest
Cloth
138 Armor
+21 Stamina
+27 Intellect
+13 Spell Piercing
Requires Level 60
Equip: Improves your chance to hit by 1.0%.
Equip: Improves your chance to get a critical strike by 1.0%.
Equip: Increases damage and healing done by magical spells and effects by up to 47.
