Originally Posted by
glycerethe
It is laughable now, back then the dps requirement was around 5-6k(or you'd reach berserk), and tanks barely had more than 23k health.
With Cata flask+food+professions+enchants+reforging, it is impossible to not kill it, just look at some of the YT videos floating around, the owners of the videos were so proud of their kills it makes me laugh.
To let you get an idea how easy it is now, here's an example, one of the videos shows the DK tank and a rogue failed on Cosmic Smash and survived.