• Seethe
• Item Level 232Disenchants into:
  [Abyss Crystal]: 1-2
• Binds when picked up
  
• Sword
• Main Hand
  
• Speed 2.20
• 108 - 346 Damage
• (103.3 damage per second)
• +39 Stamina
  +52 Intellect
• Durability 105 / 105
• Requires Level 80
• Equip: Improves hit rating by 39.
  Equip: Improves haste rating by 52.
  Equip: Increases spell power by 550.
• 
• Sell Price: 22 34 67

Source

This item drops from Devourer of Souls in the Heroic version of Forge of Souls.

Trivia

The name of this weapon and who it drops from is likely a reference to the Reliquary of Souls.

Patches and hotfixes

• Patch 3.3.0 (08-Dec-2009): Added. 
  

External links

• Battle.net (EU)
• Wowhead
• Thottbot
• WoWDB