Dracoglaive

Duskglaive (夜剣 (ダスクグレーブ), Dasukugurēbu; Japanese for "Night Sword") are created by the  of the. Forged by and given their shape, rather than imbued with the spiritual essence of a Quincy that enables them to eradicate the souls of whatever they slay, the Duskglaive are created by sealing captured  within them and utilizing their power to vanquish the enemies before the wielder. According to, the Duskglaive were the conclusion that the original Knights Lucis arrived at when attempting to resolve the danger that Quincy posed to the balance of souls. Similar to a, the user must be able to subdue the spirit of the sword in order to channel its strength, but unlike the blades wielded by , they do not possess release states; rather, their abilities mature and evolve, as well as their form, in relation to the growth of its user. Given their nature, only partial-blood Quincy can wield Duskglaives, for they would be poisonous to true-bloods. The method to their creation is a closely-guarded secret by the Knights Lucis, making them the only Quincy capable of creating them.

Classification
Due to the fact that Duskglaives are created by sealing Hollows within them, the type of Hollow used to forge the weapon will result in the quality of the resultant sword. The higher-level the Hollow, the more powerful the weapon that will be created as a result, though in the end, the usage of the weapon matters just as much as the level of weapon created. Nevertheless, high-tier Duskglaives are generally reserved for the stronger members of the Tenebrae Regiment, while the strongest class of Duskglaives are permitted for use only to the Knights Lucis themselves. The level of difficulty that goes into taming the Hollow sealed within the Duskglaive also depends heavily upon the type of Hollow used to create it, with higher-level Hollows being far more difficult to control. It is unknown if can be used to create these weapons.


 * : The highest level of Hollow evolution and therefore the strongest type of Duskglaive that can be created. Only the are permitted to wield them.
 * : Reserved for the commanders within the, the Adjuchas-class Duskglaive generally possess unique traits that grant special abilities to their wielders, ranging from elemental powers, condition enactment, control over space and time, and so on.
 * : Utilized by the higher-tier and mid-class members of the regiment, the Gillian-class Duskglaive are all typically the same for the most part. They usually manifest with power-enhancement abilities of a greater strength than standard Duskglaives that coat the user in Hollow but can sometimes, in rare cases, result in unique powers.
 * : Duskglaives created with basic run-of-the-mill Hollows are given to the fledgling members of the regiment. They grant basic power-enhancement.

Behind the Scenes
Though this has been a plan in the works for, the final design was inspired by the Cursed Gear in the anime and manga series, Owari no Seraph.