One of the most well executed aspects of Avatar: The Last Airbender is its depiction of the four elemental nations of its fictional world. The depth and care taken to create the Water Tribes, Earth Kingdom, Fire Nation, and Air Nomads contributed enormously to the richness of the show, creating a world of diverse cultures and perspectives. This helps to separate Avatar from many contemporary and more derivative works of fantasy. Embedded within the fictional world of Avatar is the idea that each society and its people reflect the tendencies of their element. But after a century-long absence of the Avatar, the nations have become stagnant, unbalanced, dysfunctional, and in need of serious reform. In this entry, I’ll explore how the protagonists of Avatar serve as agents of change in the world by embodying the best qualities of their respective elements.