At this time, we’ve finished sending out all of the invites for the first stress test. This large invite wave took a number of hours to process, so please check that thread for details about it and we’ll see many of you there when the test begins later today. Also, don’t forget that we have a couple more stress tests scheduled, so keep an eye out for updates on those in the coming weeks.
2. Achieving. There are many pet battling achievements in game, and following the natural trail through the Taming [Continent] achievements up to Pandaria, and then on to the Spirit Tamers, Beasts of Fable and the Celestial Tournament was an epic journey for me and for many others. It's well worth doing. The Celestial Tournament is still, IMO, the pinnacle of PvE pet battling. However, WoD and Legion and BfA have added more battling achievements.