2020

• Glyph of Cone of Cold
• Item Level 25Disenchants into:
  Not disenchantable
• Major Glyph
• Classes: Mage
• Requires Level 25
• Use: Permanently teaches you this glyph.
  Increases the damage done by Cone of Cold by 200%.
• Sell Price: 1

Source

This item is created with Inscription (175).

Materials required:

3x [Jadefire Ink]

1x [Light Parchment]

Patch changes

• Patch 5.0.4 (28 August 2012): No longer prime glyph, changed from [Glyph of Icy Veins]. Old Cone of Cold glyph was Increases the damage of your Cone of Cold spell by 25%. 
  
• / Patch 3.0.2 (14-Oct-2008): Added. 
  

External links

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