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Helm of Desolation
- Helm of Desolation
- Binds when picked up
- Head
- 530 Armor
- +25 Intellect
+21 Stamina 
Yellow Socket
Meta Socket- Socket Bonus: +4 Hit Rating
- Durability 70 / 70
- Requires Level 70
- Item Level 115
- Equip: Improves critical strike rating by 14.
Equip: Increases attack power by 66. - Sell Price: 4
14
38
- Desolation Battlegear (5 pieces)
- [Greaves of Desolation]
[Hauberk of Desolation]
[Gauntlets of Desolation]
[Helm of Desolation]
[Pauldrons of Desolation] - (2) Set: Increases your hit rating by 35.
(4) Set: Your attacks have a chance to grant you 160 attack power for 15 sec.
This item is part of the Desolation Battlegear set, the mail Dungeon Set 3 armor set that does not provide class-specific bonuses.
Source 
Edit
This item drops from Aeonus in The Black Morass.
Also, this is a card in the WoW TCG. It comes from the set- Servants of Illidan.
http://find-ccg.com/Singles/World_of_Warcraft/Servants_of_the_Betrayer/223_Helm_of_Desolation.html
