When the encounter was tested on the WoW <\/em>PTR several weeks ago, certain groups did stack classes to gain information about the fight, while also making an effort to determine which classes\u2019 debuffs were the easiest to deal with. This testing period evidently gave Blizzard enough of a sample size to make the decision to remove the mechanic ahead of the raid\u2019s release next month. <\/p>
Echo of Neltharion\u2019s class call mechanic would have given certain classes a debuff that caused them to deal damage to all creatures and <\/em>players around them, assisting them in the fight with increased power, but at a cost. Now, Neltharion will target certain \u201cplayers\u201d with Corruption as opposed to certain \u201cclasses.\u201d<\/p>