You can't really blame blizzard for the fact that your guild can't find a healer and a dps. There have been so many additional gear lockouts by now that most of the guilds are stuck at their limit cq real potential. Most guilds that are 3/8 hc by now will even with best in slot gear not be able to kill warmaster hard, yet alone spine or madness without a nerf. Every guild that was still progressing during the first nerf was probably close to their next kill that they wanted so badly. But that is how it goes. It was like that in icc, in firelands and in ds. The current way of gradually nerfing the hp/damage done is a far better way than adding pew pew to the players like in icc or making one big ass nerf like in firelands.
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