Cybercel Avatar The Last Airbender Booster PackEverything changed when the Fire Nation attacked The four nations of Air, Water, Earth and Fire lived in harmony until the Fire Nation declared war. A century later, there is still no end in sight to the destruction, then, an Avatar named Aang discovers that he has the power to control the four elements. He joins forces with Katara, a Waterbender, and her brother, Sokka, to restore balance and harmony to their world. Celebrating 20 years since the