Nature Energy

[ANBU Kakashi23]

remember naruto's sage training , they had a special oil that allowed for you to originally start absorbing nature chakra when it was too early for him to do it on his own, maybe each of the 3 areas has their own oil, like snake oil and slug oil, that acclimates you to which animal you would turn into if you either succeed and achieve sage mode or fail at being able to control the chakra