2 items: Adds 657 Critical
3 items: Adds 129 Damage
4 items: Adds 1096 Maximum Magicka
5 items: Adds 708 Critical and increases your Critical Damage by 4%. While in combat, this bonus doubles when you are under 75% Health and quadruples when you are under 50% Health.

Type: Dungeon
Location: Black Drake Villa
Requires DLC: Flames of Ambition

Obtainable items:
Jewels
Weapons
Light Armor