State of Harmony—Human Avatar Extraction!
It allowed KalTara to extract a Human Avatar and store it in the tusk of his Boar King form. Since he had two tusks, he could store two Human Avatars. This was his limit, and upon activation, the Human Avatar would display its effects and vanish once KalTara stops supplying it with Prana.
The greatest advantage with this method was the fact that KalTara was no longer limited to using the power of Natures alone. Suppose he used the Nature of Kinesis Deity, it would grant him a ten times boost in Spirit Weapon range, not to mention spiking the speed and power his psychokinesis could imbue into a Spirit Weapon.