Zexion smirks," finally a light hearted sensei, and here i thought you were all boring"
Zexion begins to slither on the ground while keeping his head up then explains that ...
Ninjutsu is the most commonly used offense and defense in the Shinobi World, its when the user uses chakra to perform something that normally would be impossible,Say like stretching out their limbs, or breathing fire. All ninjutsu are alike due to the fact that they all require chakra, however the more powerful the technique the more chakra is required to perform said technique. With a few exceptions Kirin for example. In addition to this there are 2 techniques that are required when using Ninjutsu, Shape Transformation and Nature Transformation, Shape Transformation is when you manipulate you chakra to take a certain form. Which can be as simple as a sphere or a prism or as intricate as a Dragon or a Hound. Nature Transformation is when a user transforms their chakra into a different element, there are 5 major elements not including KKG.. Wind,Air,Water,Earth,Lightning all of them have a multitude of jutsu in each category although there are some that do not have elements, Shadow Clone,Rasengan etc.