When it comes time that the body and mind have been prepared for the ultimate task, the potential demon hunter enters into a summoning circle surrounded by a binding rune. In the middle of this summoning circle, a single demon is called forward and the potential demon hunter is forced to fight for their lives without any help from the outside. The demon in question that is summoned is not influenced by the summoner, but the potential demon hunter within the circle might influence the demon that is summoned by a particular hatred or wish for vengeance upon a certain type of demon. If the potential demon hunter is successful in killing the summoned demon, they must then devour the heart of the creature as well as drink its blood. The binding of the demon’s soul to the demon hunter is extremely powerful, one in five surviving the ritual. As well, the demon’s flesh is extremely difficult to keep down, as if it tries to sear the inside of the body and crawl its way back up the throat of the potential demon hunter. After devouring the heart of the demon slain, each demon hunter is given a vision of the Burning Legion, witnessing the horrors of their enemy for themselves, ending with all potential demon hunters gouge out their own eyes. In the wake of the ritual, almost all successful demon hunters pass out either due to sickness, shock, exhaustion, or overwhelming fatigue.
Only really to expand on Gráinne's comment as regards the 'collecting' and 'roster development' sections - which are, as said 'distinct' although they are intrinsically linked - I would like to point you in the direction of the in-game Achievements > Battle Pets > Collect tab. There are a series of achievements called Raiding With Leashes, pretty much all of which can be completed via the auction house - if you have the gold/inclination - or by completing old raids.
The World of Warcraft is going back to its roots with WoW Classic. Giving players the chance to return to the game as it was around the time of its launch, WoW Classic is set to launch worldwide on August 27. However, ahead of its imminent release, the team at Blizzard are offering a closed beta test for WoW Classic, and we’ve got all the details players need to jump in on the action.
Instead of sharding the zones, their plan is to shard the entire continent at launch. In Classic WoW, there are no dynamic spawns and questing in starting zones would quickly become annoying, so it's understandable that the game is all but fun when there are no mobs to kill, but layering will also cause you to see new players, every time you sign in to the game, which is a clear downside of the tech.
The system is automated, meaning that once slots are available, beta testers will be chosen, without any beta key to speak of. Kaivax then goes to stress the importance of your account security, stating that, “any third-party e-mail messages, websites, or in-game whispers that offer beta keys or access to the WoW Classic Beta should be considered illegitimate and ignored or reported.”