Yaminokami

is a special ninjutsu created by Gekihen, which eventually became his signature technique.

Creation and Conception
After defecting from Konoha, Gekihen's Killing Intent would only grow stronger and darker. Gekihen, taking note of his ever increasing bloodlust, decided to mould it into a physical form.

By channelling yin release of his deadliest intent and moulding it with chakra into a physical form, Gekihen created a dark sphere of chakra, with darkness itself radiating around it. However, the sphere, being imbalanced as it contained more yin than yang, was hard to mantain and needed Gekihen to create smaller-sized spheres to make it easier. After gruesome training and with the use of his Byakugan, Gekihen managed to finally control the sphere perfectly and create larger spheres.

Usage
By moulding the physical form of their killing intent with chakra, the user can form a powerful dark purple-colored sphere. The sphere can be launched by being thrown or thrusted into the target. Gekihen, with the ability to manipulate his tenketsu on a superior level courtesy of the byakugan, can launch it by creating a powerful chakra repulsion through his hand, pushing it a fair distance away.

The damage of the technique varies depending on size. A small size has the capability to completely destroy a large tree stem, whilst a large variant can create a medium-sized crater. The true power of the sphere lies within the murderous intent, as anyone who is hit is heavily affected by the attack to to the point of paralysis for even a few hours.

Drawbacks
The technique causes a slight headache for the user, causing them to lose concentration for a few seconds.