- Formula: Enchant Chest - Exceptional Resilience
- Item Level 82
- Binds when picked up
- Requires Enchanting (410)
- Use: Teaches you how to permanently enchant chest armor to increase resilience rating by 20. Requires a level 60 or higher item.
- [Enchant Chest - Exceptional Resilience]
- 1 Charges
- Vendor 4
Source
Edit
This formula is sold by 

Patches and hotfixes
Edit
/
Patch 3.0.2 (14-Oct-2008): Added.