Since WS allows us to build things, here something I think would be fun for a world boss. Each faction can build one. Once built, it roams the land attacking anyone from the other side. To build it, the players have to complete various quests associated with their paths. Different path quests affect how the boss turns out. For example, soldier quests affect its combat abilities, etc. Each type of path quest affects the creation differently. It's also possible that it turns out different each time. If we don't get enough settlers working on it, then maybe the quality of construction is weaker than desired. I'd like it to take a lot to build one. We don't want them to be trivial. Make them take a while to build, and make them tough to destroy. Also, each faction can only have one at a time. No boss armies roaming around. Just a thought. Perhaps it's another way to get people working together.