Ryr'lif
The kings and queens of all the lands are secretly, but only so secretly, Dragons. The lands they rule over are shaped by the quests and mishaps of courageous (or insane) adventurers. The Gods are fickle yet grant their power to countless champions.
This setting is designed by equal parts bullshit I thought up on the spot, things players suggest during play, and overthinking the implications of the prior two sources.