Yang Release Absorption Technique

This a technique that is described as being unqiue to the Yakuma Clan. It allows them  to absorb the life energy of an object, or being, and then use this energy to their own will. This mostly seems to be limited to fuelling their curse, but other members with a sufficiently high level of mastery have been shown manipulating it in to a malleable gray substance which can then be turned into various shapes.

Principle
Although Yang Release does indeed represent the life energy of an object, it is far more than it seems. Even objects which have been long dead possess Yang. It is not just life energy, but the antithesis to Yin which provides an object with form. Everywhere you find Yin, you also find Yang. Each one is dependant upon the other. This is the basic underlying principle behind this technique. As one is unable of existing without the other, by absorbing one of them, Yang, the object is essentially destroyed, with the only remains being a pile of gray ashes. However, there are several factors which affect this technique. Firstly, size. An object such as a kunai or a spear can be turned to dust almost instantly. However, a wall will take longer. The indication of how close the object is to being destroyed is measured tby the progress of a grey "stain" across the objects surface. Once the object is entirely grey it will be turned to ash.