2 items: Adds 1487 Penetration
3 items: Adds 1487 Penetration
4 items: Adds 1487 Penetration
5 items: When an enemy blocks one of your attacks, increase your Penetration by 631 for 5 seconds. This effect can stack up to 20 times. You can gain one stack every 0.5 seconds.

Type: PvP
Location: Cyrodiil
Requires DLC: Scribes of Fate

Obtainable items:
Weapons
Medium Armor
Jewels