Mixed-Styles Jutsu

Mixed-Styles Jutsu (術の混成流, Jutsu no Konseiryū, literally "techniques of mixed methods") is the idea of using the principles of certain Ninjutsu, being elemental ninjutsu in most cases, for the purpose of casting other style jutsu with that aforementioned method. It was invented by Kamui Uchiha and Shōyō Kawahiru, after having come across the use of Sealless Jutsu.

Overview
In terms of elemental jutsu, each of the release styles have their own way of using chakra. Suiton is said to be the less taxing of the elemental ninjutsu because it commonly takes advantage of existing water sources to fuel its jutsu, whereas Katon is the most exhausting because it utilizes the chakra of the user entirely to form the fire needed for the technique, such as the Fire Release: Great Fireball Technique. But Kamui and Shōyō, using their new-found knowledge from the same source as the Sealless Jutsu, managed to consider a way of using the concepts of water-style ninjutsu to form fire-style ninjutsu. And from this, arose hundreds of thousands of different new jutsu that could be utilized through completely unique and different methods.

Ninjutsu Examples
Note: For the purpose of better showing this idea, the author will be creating a couple different examples of mixed-style jutsu below.


 * Water Release: Great Fireball Technique (水遁・豪火球の術, Suiton: Gōkakyū no Jutsu; literally "Water Style: Fireball Technique"): The Shinobi uses the principles of Suiton ninjutsu to make use of the heat that can be found all around them; from sources such as the heat that is given off by human and animal bodies to even the heat from the Sun itself. The heat is drawn in through the use of the Shinobi's own chakra and focused at the palm of fingertip, and then released as either as a massive orb of roaring flame or as a continuous flame-thrower. The released flames will engulf their target, and leave a crater on the ground's surface. Because the user's chakra is not needed to be converted, it is far less taxing on the user of the jutsu, but in addition, causes the technique to become infinitely more powerful.

Notable Users

 * Shōyō Kawahiru
 * Kamui Uchiha

Behind the Scenes
The concept behind this technique was inspired by what Iroh, from the Avatar series, based his lightning redirection from watching the waterbenders, when he himself is a firebender. He explained that all of the elements are one, and for one to become complete, they must familiarize themselves with all the styles. Martial arts also follow a similar method, using principles of other martial arts in order to supplement their own, which results in the creation of a more unique art style.