Formula: Enchant Weapon - Black Magic

• Formula: Enchant Weapon - Black Magic
• Binds when picked up
• Use: Teaches you how to permanently enchant a melee weapon to cause your harmful spells to sometimes increase haste rating. Requires a level 60 or higher item.
• Requires Northrend Enchanting (65)

Source

This formula is sold by  Vanessa Sellers <Shard Trader>^[38, 40] for 10 .

Patch changes

• Patch 3.0.2 (2008-10-14): Added.
  

External links

• Wowhead
• WoWDB