It was a transition; First we have the hammer warrior train; two groups that crash each other, and move without to much problems. Then, before HoT, the stability was changed, and the pirate ship META stroke hard. The stability disappeared almost completely after the first charge. Then... The power HoT came... And the pirate ship META was even greater. The elementalist meteor shower was amazing. And also this time was the prebuff, that was funny. During this time, also was famous the epidemic META and condition damage, until it was nerfed. The necromancers were everywhere. Then some changes in stability loss and cc changed a bit to a mele META more or less, but not until PoF and firebrand + scourge. And that is what I remember, I am sure I have forget something. The take home message is; WvW has always being around guardian and necromancers changes.