Aang acquired Void when he attempted to use energybending to restore the bending of Ithar, whom had become a victim of bloodbending.

In 102 AG, a sixth element was also gained during Avatar Aang's time. Avatar Aang was given the ability by a Lion turtle in order to combat Firelord Ozai without having to kill the firebender after defeating him, but to instead be able to take his bending away to thus end his plans of extermination. In 100 AG, a fifth element was added to the cycle: Energy.

The gender ratio of reincarnation is also in a cycle going: Boy, Boy, Girl, Boy, Girl, Boy, Boy, Girl, etc. With the defeat of Vaatu and locking him within the Tree of Time, The Avatar has existed for more than 10,000 years, reincarnating accordingly with another who has the next of the four bending ability originally leant by Wan ( Fire, Air, Water, Earth, and so forth). With the mergence of the souls and bending abilities of Wan and Raava, the Avatar was created. The Avatar Cycle was created by the fusion of the human Wan and the primordial spirit Raava during the Harmonic Convergence that occurred on the final day of the Last Era of Raava, while in the midst of the battle between Wan and the dark primordial spirit Vaatu.

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