• Plans: Dark Iron Sunderer
• Item Level 55Disenchants into:
  Not disenchantable
• Requires Blacksmithing (275)
• Use: Teaches you how to make a Dark Iron Sunderer
• [Dark Iron Sunderer]
• Requires 26x[Dark Iron Bar], 4x[Heart of Fire]
• 1 Charges
• Sell Price: 30

Source

This item drops from Hammered Patrons and Ribbly's Crony in Blackrock Depths.

External links

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