Effectively, what we have here is a tiny, rodent-shaped world boss, folks. A world boss the potentially drops itself as a pet.
If you're dying to solo him, DeGei reports that pets don't get the debuff, so it's feasible for a warlock or hunter to pull it off ... but that 72 million health means you should bring something to read if you intend to attempt it.
Huge, sharp teeth, people. You have been warned. Speaking as a man who has a rabbit, you do not trifle with them.
It's open warfare between Alliance and Horde in Mists of Pandaria, World of Warcraft's next expansion. Jump into five new levels with new talents and class mechanics, try the new monk class, and create a pandaren character to ally with either Horde or Alliance. Look for expansion basics in our Mists FAQ, or dig into our spring press event coverage for more details!