After the Spirit Projection incident, Kahn began learning Spiritbending from Iroh.
As the oldest Bending art belonging to humanity itself, it lacked the elaborate moves and variety of the Four Bending Arts. Its abilities were primal and powerful, just like the Ancient Spirits that were as old as it was.
Of course, that power did not refer to offensive strength.
In the age when Ancient Spirits roamed unchecked, humans could never surpass them, however strong they became. Thus, humans back then had never pursued combat strength, instead seeking to communicate with the spirits and gain their protection. That was Spiritbending.
Now, however, Spiritbending's power lay in the exceptionally strong support abilities it displayed.
So far, Kahn had only learned Spirit Projection. Humans in ancient times had used it to communicate better with spirits, but now it had become an exceptionally powerful reconnaissance skill.
In spirit form, he could ignore terrain, gravity, and obstacles, moving however he pleased. He could truly soar into the heavens and burrow into the earth without restriction, and at more advanced levels, even teleportation would come as easily as turning his hand.
Because ordinary people could not see spirits, this meant no one except a Spiritbender could stop him.
Of course, he had to make sure his physical body was somewhere safe during this time.
And Spirit Projection was only a basic Spiritbending skill.
Beyond that, it could sharpen a person's perception, allowing them not only to sense danger in advance, but also to perceive other people's emotions and even read minds. They could also influence other people's emotions in turn, sense all things through the [spirit] present throughout the world, and so on.
Although it lacked offensive abilities, that lavish lineup of support abilities and passive buffs already had Kahn drooling.
His assessment of Spiritbending