Just ran across this article about the old Hakkar raid boss that I thought everyone in WoW who has ever done this before or even heard about it, would find interesting. Here is the article for those interested.
“According to Starym on the Icy Veins forum, the guild BLaDE of KiLL completed this " World First " feat by defeating the raid boss Hakkar the Soulflayer without first defeating any of its five high priest bosses earlier in the raid. Each of the five priests, if left alive, gives Hakkar a powerful extra ability or buff, and all five together has spelled doom for any challengers until now. Because they skipped most of the raid’s content, the entire run took only about 8 minutes, with the fight against Hakkar himself clocking in under a minute and a half. Check out the video below:”