• Master's Inscription of the Storm
• 4 second cast
• Requires Cloth, Leather, Mail, Plate
• Reagents:
  [Snowfall Ink]
• Permanently adds 70 spell power and 15 critical strike rating to shoulder armor.
  
  Can only be applied to your own armor, and doing so will cause it to become soulbound.
• Requires Inscription 400

Master's Inscription of the Storm is an Inscription-only permanent enchant to shoulders to increase spell power by 70 and critical strike rating by 15.

Source

This skill is learned at an Inscription skill of 400 for 7 50.

Enchantment requires you maintain an inscription skill of 400.

Materials required:

[Snowfall Ink]

Patch changes

• Patch 3.2.0 (04-Aug-2009): Master's Inscriptions increased. 
  

External links

• Wowhead
• Thottbot
• WoWDB