As i found out some interesting things aubout my tank i want to share with you two hints. 1. The Skill Guardian Block lvl.1 in Knight AP tree, which gives 100% Defense, also influence your Patk. in the tho-hands stance. 2. The buff Grand Fortress that we get when we are attacked or we get by using the skill shield boomerang can stack up to lvl. 5. While at lvl 5, it increses the duration of final ultimate defense, focus shield and raise, by 25%. cheers