• Badge of the Swarmguard
• Item Level 76Disenchants into:
  [Nexus Crystal]: 1-2
• Binds when picked up
• Unique
• Trinket
• Requires Level 60
• Use: Gives a chance on melee or ranged attack to apply an armor penetration effect on you for 30 sec, increasing your armor penetration rating by 28. The armor penetration effect can be applied up to 6 times.
• Sell Price: 8 3 3
• Cooldown: 3 min

Badge of the Swarmguard is a unique epic trinket for physical damage classes. On a melee or ranged attack, you can gain a stacking buff for 30 seconds that lowers the target's physical armor.

Source

This item drops from Battleguard Sartura in the Temple of Ahn'Qiraj.

Notes

• The estimated droprate is 10%.
• Only the user of the trinket gains the benefit of the target's decreased physical armor.
• The buff from this trinket is called Insight of the Qiraji.

Patches and hotfixes

Patch 1.9.0 (03-Jan-2006): Added 

External links

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