Kishinkō

Kishinkō (鬼神閧, "Demon God War Cry") is an advanced hybrid technique that combines and  into a powerful fighting style. It is an evolution of the technique; the difference between them being said to be comparable to that of  and.

Overview
The technique uses  to channel ambient  into the user. This reishi enters their heart and alters the nature of their, before being emitted outwards with a violent outcry of spiritual force. In another way of understanding this phenomenon, Kidō normally works by imprinting the whims of the user onto the reishi around them in order to produce the desired spell. However, by driving that Kidō into the body and allowing it to enter the heart, rather than the immediate desires imprinting onto the reishi, it actually becomes the innate traits and nature of the user that instead imprints onto the reishi. Rather than a spell created to serve a distinct purpose, the Kidō instead 'enchants' the wielder and enhances their own inherent abilities, which blooms into the Shunkō technique.

However, the Kishinkō takes this premise a step further. Instead of channeling neutral reishi into the body, allowing a natural power to be born from the nature of the user, the Hakuda specialist first performs a Kidō spell and absorbs the power of the developed spell into their body. In doing so, the spell bonds with the soul of the user, similar in principle to a. The end result is a transformation in which the user's body adopts characteristics that are reflective of the spell that they have absorbed.

Much like Bankai, however, the user must first be able to dominate the influence of the spell once it has bonded with their soul before being able to harness the Kishinkō. If they should be incapable of doing so, their soul runs the risk of being consumed by the spell, leading to their death. Similarly, those who wield may find it far more difficult, if not impossible, to perform Kishinkō. This is due to the fact that their Zanpakutō spirit may interfere with the spell bonding process. Despite this, for those that manage to successfully do so, their Zanpakutō spirit also experiences a spiritual transformation together with their master.

Behind the Scenes
In Buddhism, a Kishin (鬼神) is an individual with superhuman powers; this would include beings such as Śakra, the ruler of Heaven, or the Rakshasa. The basis of this technique can be compared to that of Magia Erebea from the manga series, Negima.