I want to make Kana an off-tank, complenting Eder who is my main tank. I'm new to PoE, so I'm not sure what direction to take it. Advice from internet in general suggests picking up a sword and shield, and relevant talents(weapon style, ancient memory, hold the line), and putting him in heavy armor. All of which I've done - but he still seems to be really bad at tanking. He's losing HP really fast after just a few fights. Is there anything i am missing here? Want to I need to do to make him a viable off tank? I'm about level 5 btw.