The Armor of the Old Gods is a reward for completing No One Escapes Cidhna Mine.
Wearing this piece of armor grants the following skill bonuses:
- Fortify Destruction: 15 points
This means the armor cannot be improved past flawless quality without boosting the Smithing skill over 100. This can be achieved by using enchanted items and/or blacksmithing potions to fortify Smithing.