The damage totals of the last boss need to be changed. If there is a mechanic to remove the fury stacks, what is it?
So far one orb taunts the adds to it's location, the other roots them, and the red orb kills them when the boss is brought to the top at 25%.
However, unless your lucky enough to have 2 FULL T4 tanks with maxed AA, how are you supposed to tank through 5-7K hits? Heals only fo so far and for the items your getting from this instance it does not make sense for to complete it you need such overgeared tanks.
Funcom needs to take a look at this instance again. It might be we are all missing some hidden mechanic to stop the stacks, but it does not have anything to do with the orbs so what is it"?"