One continent being down without the other desyncs the dragons, possibly making them spawn duplicates.
The dragons spawn one unique per the 4 spawn locations, typically all at the same time. Server crashing or going down counts as that world boss having been killed, and starts its respawn timerĪt the time of the testing, Azuregos/ Lord Kazzak used to spawn a little earlier than the world dragons. Some people have roughly estimated their spawn rates: Blizzard seems to have lost interest for a time in the idea of world bosses as none had been added between the Burning Crusade expansion and Mists of Pandaria. These bosses are considered raid bosses since it takes more than a party of 5 players to down them. This page also contains a short overview of all world bosses in game, including those that were nerfed, removed, or just not updated for the level cap.
ability and talent articles), but please avoid overwriting all previous information with more current information (e.g.