• Schematic: World Enlarger
• Requires Engineering (260)
• Use: Teaches you how to make a World Enlarger
• [World Enlarger]
• Requires Mithril Casing (1) Thorium Widget (2) Gold Power Core (1) Unstable Trigger (1) Citrine (1)
• 1 Charges

Source

This Schematic is a rare drop from Weapon Technicians in Blackrock Depths.

Patch changes

• Patch 1.4.0 (2005-05-05): Added. 
  

External links

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