This man was an odd one. He threw a scroll towards Kiritsugu, which contained a bunch of information on Wood Release. Kiritsugu read through it thoroughly, and turned his attention to the man, Yamato. His eyes squinted as he spoke, and his voice was thick and deep. One could easily see that he was a serious man, and he didn't waste any time on smaller issues.
"Not bad. However, a few things were missing. Mokuton is indeed to combination of Water and Earth natures, and its strength is against Water, and Earth as well. Don't forget Bijuu chakra as well (shout out Hashirama). It's weakness would be Lightning, as it cuts through the Wood with ease, due to its extreme heat and "sharp" quality its given. Wind release is somewhat neutral to the KKG, and it ultimately depends on the type of Wind technique used against it. Wood release would be able to tank the more blunt Wind attacks, taking size and logic into account, yet it would be able to be cut with sharper and more concentrated Wind techniques. It is also, neutral to Fire.
One of the most versatile KKGs out there, and there's a reason why it's so rare. It's one of the few skills where one can fight an entire battle, using Wood alone. It's capable of attacking, defending and being supplementary as well. Anyway, unlike elemental training, we'll get straight into this."
Kiritsugu says, as he cracks his knuckles, preparing to start off with this Yamato man. He seemed to be mature, so things would go easily.
"My method of teaching is quite simple. I will explain the technique to you, then I want you to perform it against a clone of mine. After that, give me at least 2 advantages and disadvantages of the technique, and how you would use it in battle. If you have an questions, feel free to ask.
Now, to manifest Wood chakra, you will combine your Water and Earth chakra. After doing so, focus it either into your body, or the ground, in order to create from said medium, a thin pole of Wood. A combination of control, precision and shape manipulation. This pole can then be used for close combat encounters, like fighting an incoming Taijutsu based opponent. Or, it can be used as support, as you perhaps use it to support your body weight for some Taijutsu, yourself. Use it against my clone (plus the other stuff I listed, all in RP style xD)."
Kiritsugu creates a clone that runs towards Yamato.