They said it couldn't be done. They said mages and rogues were the only two classes that couldn't solo Onyxia. Sorry, rogues -- you're all alone on this one. Thanks to the latest round of PTR changes giving mages a shorter evocate cooldown, coupled with the glyph of evocate, and very unique talent build -- Onyxia has now been bested solo by a mage.
Most of the music in this video comes from Speaky's Mashcore Volume II which can be downloaded for free from: http://www.myspace.com/speakymusic
Sorry for the horrible UI, since this was done on PTR, I only had *one* mod actually working -- Xperl. Everything else is standard vanilla UI.