That is actually one of the conundrums. I've been slowly testing different things to see where I can 'lose' a little defense to gain a bit more offense. But it's definitely tanky. With the changes in 0.9.2 it opened up some things with defenses. I use to run it with a Bastion and almost gave up on the build when I saw the nerfs to it, but, o me of little faith, the changes they made to block and stuff in other areas (especially that added bit in the Age of Winter blessing) actually makes it feel much, much tankier. With Sigils and that shield, I can hit about 80% block chance and I don't have the blessing yet. I like it because it FEELS like an in-your-face stand and fight kinda old-school build.