Avatar

The Avatar is the human embodiment of light and peace through the connection with the Avatar Spirit and formed initially when Wan permanently fused with Raava during the Harmonic Convergence of 9,829 BG. As the only physical being with the ability to control all four bending arts, the Avatar is unquestionably the most powerful bender in the world. It is considered the Avatar's duty to master the four elements and use that power to keep balance and peace among the four nations of the world, as well as between mankind and spirits. Upon mastering control of the Avatar State, after having learned to bend the four elements, an Avatar is referred to as "fully realized".