So, our big bad antagonist.
Maybe they could have an "Elite Four" (or something), each one being evil on a Leighlor continent.
Defeat them all, and you get to learn where the final dungeon lies.
I'd like it to be a huge space station. Or the moon. Or both.
And you'd get there by means of... as much as I dislike it... meteor sharks.
I've got an idea: the main antagonist (The Mastermind) has sent his 4 henchmen (The Conspirators) to take over each nation, and demolish the old ways so that they can build a new world. The Mastermind believes that the current societal systems are broken and archaic and so he believes that the old ways must be torn down for the sake of the future.
Yeah, so I'll be working on them, if everyone else is fine with it.