Originally Posted by
Bigbazz
Magtheridon Pre-nerf, Nightbane, Netherspite, Prince, Hydross, Vashj, Kael'thas, ROS, Illidari Council, Illidan, Twin Eredar, Muru, KJ.... But I mean difficult is relative, none of these will cause issues for an experienced and prepared raiding guild... It's more like which ones will pugs have issues with, lots of pugs on private servers had trouble with nightbane and would routinely skip Netherspite for example, a decent guild would just kill them and probably on the first try if their gear is somewhat decent.