• Abyssal War Beads
• Item Level 63Disenchants into:
  [Large Brilliant Shard]: 1 (99.5%)
  [Nexus Crystal]: 1 (0.5%)
• Binds when equipped
• Neck
• +15 Stamina
• Requires Level 58
• Equip: Increases attack power by 20.

Source

This item is a possible reward found in a [Sack of Spoils], a reward from completing the following quests:

•  [60] Signet of the Dukes
•  [60] Abyssal Signets (Repeatable Reputation Quest)

External links

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