Update:
Scroll down for the video
But Fraps wasn't recording :<
I'll see, that I get a video done on the next ID-reset, but til then: you heard it here first! ^^"
Maybe this thread motivates a couple of fellow mages to also give this fight a try. But be advised, that owning the legendary staff and a proper fire-spec are a must. However, with the upcoming fire-buff, mages without the legendary should stand a chance as well.
I won't go into any more detail, but feel free to check my spec and glyphs to figure the tactics out for yourself =)
edit:
Until I get a video done, this is the only proof I have for that kill :|
edit2:
New ID, new luck ... here's finally the video of my rekill:
edit3:
I uploaded the original clip, in case anyone wants to watch it in better quality: click (390mb)