Four groups of Zygons attempted to make Earth more like Zygor: those who arrived in the 12th century (TV: Terror of the Zygons), those that arrived in the 16th century and plotted to invade in the 21st century (TV: The Day of the Doctor), those that arrived in 1909 (PROSE: Sting of the Zygons), and those that arrived in the late-20th century. (HOMEVID: Zygon: When Being You Just Isn't Enough)
Keep in mind that these quests are optional, and are not necessary to continue leveling and capturing companions. They are also account-wide, so if you complete the quest chain on one character, you will not be able to complete it again on another. However, any progress that you've made will be saved and you can pick up where you left off in the quest chain on another character. The dailies that you've unlocked will also be accessible by all your toons. 

Why was this downvoted? The swing analogy is horrible. There’s nothing physical that’s going to change when u play the game the exact same way as 04 05 06. The difference is u know what’s going on as opposed to not knowing where anything is. A good analogy would be playing Pokémon red again after beating the elite 4. The game itself won’t be any worse, it just will be easier and maybe less enjoyable if all you enjoyed is the aspect of not knowing where to go. But this is why pvp servers are magical, because each time you level a character, your leveling experience is different based on the encounters that happen while questing. In 05 U may have breezed through stv, but in classic u may spend an hour on a single quest solely because of the competition between factions on that particular quest.
Sep 1 Blindsight's How to Choose a Server Guide [Originally posted by Blindsight-Spirestone on the old Warcraft forums--it's my understanding he no longer posts, but this is a valuable and informative guide] Since it's a frequently asked question on these boards, I've thrown together a quick guide for how to pick a server. Server Datacentre Location - New York, Chicago, Phoenix, Los Angeles First and foremost: Limit your search to servers that are as close to you (physically) as possible. Closer servers will have better latency, and thus deliver a better play experience. WoWWiki has a great list by datacentre: Realm Type - PvP, PvE, RP, RP-PvP Now that you know which servers to look at, the next most important question is if you want to play on a PvE, PvP, RP, or RP-PvP server. RP vs. non-RP servers should be a simple choice: when interacting with other players, do you want to act "in character" replying to other players like they're living inside the world of Azeroth, or would you rather just play WoW like any other video game treating everyone else like a player at a keyboard? If you want to play on an RP server with active RPers: "Wyrmrest Accord and Moon Guard are very popular, but Moon Guard is very over populated." -Nok PvE vs. PvP is a bit of a tougher decision. On a PvP server, once you get to about lvl 20, in just about every questing zone you go to you can be attacked at any time by any player of the opposite faction (Horde vs. Alliance). If you like the idea of jumping other players while they're running around killing mobs/questing, this may be for you. If you don't like the idea of a max lvl player killing you in 1 shot when they ride by, then you may want to stick to PvE servers. Some people feel that PvP servers have a slightly more mature community since most children and/or immature players can't stand being killed randomly. Other people feel that PvP servers have a less mature community since it's full of teenagers who like to grief other players while they're just trying to quest. YMMV. Realm population - New, Low, Medium, High, Full The next major consideration for choosing a realm is the realms' population, both the total number of players and the Alliance / Horde ratio. This is a bit more complicated, and there are different ways of looking at the data. First, has a tool for taking a "census" of various realms, but it relies on data uploads from players on the server. Its data is only as accurate as the data it receives from player uploads, but it gives a pretty good baseline idea: Another useful way to look at population data is in terms of server age. Older servers tend to have higher populations. WoWWiki has a list of all US realms' creation dates: So that's great, but what does it mean? How does population affect the game? Here are a few points to consider: Empty servers: By far the easiest way of ruining the MMO experience is to have nobody to play with. Avoid servers with very low population. Queues: Very high population realms often have queue times. This could mean waiting for half an hour every time you want to play during prime time. During prime time (weekday evenings and weekends), check the realm status page to see if the server is listed as full: Economy: Higher population realms have more robust economies. This means the auction house will have many more items listed and will be much more competitive. 10/25 Man Raid PuGs: Higher population => more things happening => more groups going all the time. Pick up Groups will form more frequently and will fill faster, meaning you can play more and sit in town waiting for groups less. This also, however, means (on some servers) that PuGs can be more picky in who they take along since anyone can be replaced quickly. A/H ratio: Depending on how you like to play, you may want an even ratio so that everything that involves opposite faction interaction (like world PvP) are more fair, or you may want to be on the advantage side of an imbalanced ratio so that your side is usually winning. The only disadvantage with being on the plus side of a wildly imbalanced population is that soon, world PvP zones (i.e. Wintergrasp) will only allow the same number of players (beyond a minimum level of 20 players) from each faction in at the same time, so if nobody from the other side shows up, only 20 from your side can get in.Frejya117 Sep 1
Zygor Guides is an in-game software strategy guide for World of Warcraft. Every guide comes complete with the Guide Viewer, which displays step by step instructions of what quests to accept, how to complete objectives, when to use items, and more. Our gorgeous waypoint arrow will point you exactly where to go at all times and the model viewer will display fully rendered 3D models of NPCs and objects mentioned in the guide.
Blizzard have announced that the invites for today's stress test have all gone out, with a reminder there are more tests coming, as well as clarified how exactly the general invite process works. Also, unfortunately for everyone that doesn't have one yet, they're also sending out fewer and fewer beta invites, as they're nearing their goals for current testing. 
It seems the first stress test didn't quite do the job yet, as Blizzard are scheduling a second one next week, due to more issues with the first one than were anticipated (mainly of the login screen variety). Everyone that was invited to the first one will also be invited to the second, the level cap will be raised to 10 and it will also be available for a full day, starting at 2pm PDT on Wednesday, May 29th.
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.