I just finished lvl 34 and throwing some pointers. When you get to the end and fight urrock he will rage. This burns the ground and annihlates your team. It last for teb seconds. We had 2 hunters and a warlock. It lasts for ten seconds. It survive as hunter spec to triple jump and time your jumps strait upwards. As warlock jump and do aim down sights float. I hope this helps the yo will have to find out. Im not spoiling what awaits for the begining and where to hide. Thats the fun in figuring it out right?