Originally Posted by
woopytywoop
Superheated: if you don't make rhyolith stomp active volcanoes, he'll get stacks of this which will 1 shot you (happens between 4:30-5min). So ideally you don't want to miss any active volcanoes and get him to 25% before he gets this buff. (every stack adds 10% damage and it stacks fast)
The buff he gets from stomping inactive volcanoes isn't that bad as superheated, but should also be avoided. So when his armor is down, avoid stomping volcanoes and if he has some stacks, let him first do a special to get rid of them before pushing him under 25%
but best is to make sure you get every active volcano while pushing him into 25% before superheated. Once you manage that, it will be a kill. Transition is the hardest, use BL, raid cd's (aura mastery etc), stack up behind the boss and it should be a kill.