Devierum guild form the server malfurion kills M'uru prenerf. Some say it was the hardest boss to kill of all wow's history. Here is a kill of the chaotic fight. The kill was our second one... We didnt record the first one due to nearly 2 months of trying to kill him. The week after this movie the boss was drastically nerfed and he never was the same difficulty again. We laughed when we saw how easy it became.