Tank build.. That one isn't very functional, unless you plan to tank with 2h half of the fights, but believe me, with a tankier build without 2h enhancing rubies I am squishy as hell anyway while using a shield, so you need more defences. As a tank you need to survive as well as make agro as much as you can, guessing that you tank with 1h because you took one-handed dmg rubies and shield rubies, you don't have to go for rank 2 crushing blow on the bottom right, it's a big waste of rubies in my opinion. While you skip rank 2 crushing blow (and remove the useless armor rubies while wearing a 2h sword), you can take the vitality rubies as they increase your hp greatly (i'm surprised why you skipped them as tank..)
Heroic might is not very helpful for a tank as it is mainly a pvp skill with a boost on a few flawless strike hits for easier kill of an enemy. I'd suggest taking rank 3 flawless strike instead.
Here is the build I use for tanking. I've tried out a few other types of choice but this seemed best.
Reasons why I took hack and knee shot, as well as Headbutt, once again, you need to survive, so this trick helps you stay longer in the fight. You slow the mob and then headbutt it to make some time for the healer to heal you up before you get hit again (if you're lucky you can gain back the barrier while kiting the mob around)