Minato listens to Hashirama as he explains. He was indeed right, and as such Minato smiled. It was a very versatile KG, and as such, Minato could continue.
"Indeed, it is a great KG. Though I have no control over it myself, I know a lot about it. Now, to achieve Wood chakra, you have to combine your Water and Earth chakra. Anyway, my training method is as follows, I will explain how to perform it, then you will perform it, give me at least 2 advantages and disadvantages, how you would use it in battle and if you have questions, then ask!
Now, the first technique is simple. First start off by creating your Wood based chakra by combining your Water and Earth natures. You will then send this chakra either into the ground before you, or from yourself, to create a pole made of wood. This pole can then be used to slam around opponents as a weapon. Use it against my clone."
Minato creates a clone that runs towards Hashirama.