Zanpakutō Forging

The art of was created by Ōetsu Nimaiya as a way of giving an  a sword-like form, thus making it a Zanpakutō and a usable weapon. The only two users of this art are Nimaiya himself, and his successor, Raian Getsueikirite.

Overview
Like actual bladesmithing, there are numerous ways to forge a Zanpakutō; each unique to the technique user. Being as there are only two users of this technique, there are likewise, only two known methods for preforming it. Regardless of which is uses, the results of the technique are always the same;


 * 1) The bladesmith must first transform the Asauchi in question into a "tube" of.
 * 2) The bladesmith must then apply flames, the special water from underneath Hōōden, and employ a specialized tool to form the weapon itself.

Supplies
To properly preform this technique, the bladesmith must have access to certain pieces of equipment.


 * : An anvil is present in the forge where Zanpakutō are made. It is used as a workbench for the bladesmith, and is where the Asauchi is placed once converted into spiritualized metal.


 * Specialized Water: The rare water from underneath the Hōōden is also required for Zanpakutō creation, according to Nimaiya himself. The water serves as a cooling agent to rapidly cool down super-heated metal.


 * Tool: The tool used to craft the actual blade is up to the user's preference.
 * Nimaiya's Hammer: When Nimaiya forges his Zanpakutō, he materializes a massive, which he repeatedly beats the spiritualized metal with until crafted to perfection.