not that it needs repeating but all the problems with the raid are with Nihilus. Having all the problem mechanics from phase 1 repeated in phase 4 just make the raid not worth doing. Personally I think removing the protection gain from basic attacks against him would do wonders. To the fellow who did the calculations on the health pool, I assume this calculation doesn't take into account this mechanic. While I understand the same mechanic exists in Heroic, it does make the health pool that much more a) p2&3 and b) potentially a bigger discrepancy than the other 2 raids. It's also in the first part of the raid. so the first thing you face up against is a brick wall that you don't really feel like pounding your fists on.