• Symbiotic Worm
• Heroic
• Item Level 372Disenchants into:
  [Abyss Crystal]: 1-2
• Binds when picked up
• Trinket
• +544 Stamina
• Requires Level 85
• Equip: Melee attacks which reduce you below 35% health cause you to gain 1089 mastery rating for 10 sec. Cannot occur more than once every 30 sec.
• Sell Price: 8 5 7

For the normal version of this item see [Symbiotic Worm].

Source

This item drops from Magmaw in the Blackwing Descent raid instance on heroic mode.

Patches and hotfixes

• Patch 4.0.3a (2010-11-23): Added. 
  

External links

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