Lv1 - Reduces incoming PvP damage by 2%
Lv2 - Reduces incoming PvP damage by 5%
Lv3 - Reduces incoming PvP damage by 8% & increases outgoing PvP damage by 2%
Lv4 - Reduces incoming PvP damage by 12% & increases outgoing PvP damage by 5%
Lv5 - Reduces incoming PvP damage by 15% & increases outgoing PvP damage by 8%