Kuzon sat in a meditative position in a massive room deep underneath the Southern Air Temple. The middle of the floor was designed with an intricate lotus tile and there was a pillar in each of the four corners of the room. As he sat, he would open his eyes just as a rock would fly towards him, raising his hand, he would catch it and crush it before standing quickly.
The four masters now stood in each of their respective corners, Master Goh in the corner of earth, Master Orin in the corner of fire, Master Yasi in the corner of water, and Master Pinan in the corner of air. This was his final trial in his training and he would be passing. Orin decided to rush in first sending a blast of fire that was met with a wall of earth that was then launched at him. Goh jumped in to his defense while Yasi sent a lash of water towards the now exposed Kuzon.
The young Avatar knew he would need to pull out all stops to defeat the four masters. Using a blast of air to evaporate the water, he would duck under a wave of air from Pinan while dodging another blast of fire from Orin. Letting out a sigh, he would catch a fist from Orin, blocking the fire from hitting him. Raising earth to trap the man in a way that he couldn't bend, it was now time to take care of the rest of the masters.
Sending more earth to rise around Yasi, he held out his right hand, bending the blood of Goh to keep him from freeing them. That left only Pinan to take care of, so he would do that, bending their blood and bringing them close to eachother and then trapping them both in earth. Goh would then speak. "congratulations young Avatar, you have completed your training. Your first task is to go to the earth kingdom and meet with the prince, to see if he is truly the other Avatar. If he is, return here with him." Kuzon would simply nod and then leave to prepare his things, he was headed to Ba Sing Se.