Kayomi

A special ability only found in Shiro Uchiha's. Kayomi is a very powerful technique. It's classified as both a ninjutsu and a kinjutsu due to it's properties. It allows the user to summon God himself to the battle front. It's considered the most powerful Ninjutsu and Dōjutsu ever gained by an Uchiha, next to Ika-Zuchi-no-Kami. It's on par with in rarity and it's sought after by all uchiha. Even Madara Uchiha stated that "If one unlocks this technique, it'll be like gaining the power of god", just like Ika-Zuchi-no-Kami.

Attacks it uses

 * Solar Flare (太陽フレア,Taiyou Furea): Through imitating an actual solar flare, Kayomi is able to generate both extremely high temperature solar winds and super concentrated radioactivity in order to produce a highly damaging and wide ranging attack.


 * Prominence (紅炎, Kurenai Honoo): This attack makes use of the huge pillars of gas extending tens of thousands of kilometers over the actual sun to directly attack an opponent, drastically increasing the temperature and radioactivity received.


 * Comet (彗星, Suisei): This technique produces a large comet, composed of ice and other frozen gases, within one of the O.S. Great Spirit's hands. However, rather than throwing it towards an enemy, it makes a slashing motion with significant force, using the comet's tail in a similar manner to a sword's blade.


 * Meteor: By opening up numerous compartments along the lengths of both its arms and legs, Kayomi can create huge amounts of meteors that can subsequently be launched and directed towards multiple opponents.


 * Supernova (超新星, Choushinsei): Through creating and forcing a star to undergo its final stages of evolution, it explodes in both an incredibly powerful and wide ranging blast; referred to as a supernova.


 * Black Hole (ブラックホール, Burakkuhoru): After preforming the attack Supernova, the gravitational collapse of the remnants continues to occur, resulting in a gravitational field with such an incredibly high density that even light cannot escape. This phenomenon is referred to as a Black Hole. The attack itself absorbs anything present within the surrounding area, trapping it inside forever with no possibility to return.

Drawbacks

 * Like, it can only be activated once every decade.
 * Drains the user of 90% of their chakra.
 * It temporarily leaves the user's vision blurry after use for 24 hours.
 * This technique must be used as a last resort. Preparation takes long.

Trivia

 * The ideas and attacks comes from the O.S. Great Spirit from the anime/manga series Shaman King.