Yeah, my defense is 553. Just got a few item upgrades and haven't explored rebalancing the handful of gems/enchants I have.

Problem is pretty straight forward, I can't keep the tank upright. In fairness, I've only tried the encounter a half dozen times and it took more a lot more than that to get the Collussus figured out. Was just wondering if there was anything obvious I was missing.

How long does the rhino form last? Seemed an eternity to me.