Name: Shüshuku suru kiba

Translation: Contracting Fang.

Weapon Classification: Wakizashi.

Type: Elemental.

Subtype: Darkness.

Base Appearance: This Blade has a rather unique base form that seen in most sealed zanpakuto, it has a red grip while the blade is pure black with cracks of red on the blade but isn't shown to be a structural damage more decorative.

Shikai Command: Swallow.

Shikai Activation Design: The User is surrounded by purplish dark haze which seems to consume the user before dissipating showcasing the user without the top half of their Hakima(With sports bra if female) with the new weapon at their side.

Shikai Appearance: The Weapon takes the form of a sleek black scythe that appears to be a weapon utilized by the grim reaper himself, a sharp curved blade with a sleek black handle.

Spirit Appearance: The Spirit takes the form of an incredibly large three headed dog that is found in mythology of being Cerberus from the divine comedy, it has pitch black fur and glowing red eyes.

Spirit Personality: Shu seems to exhibit darkness and anger yet incredibly loyal to the master, guarding the users inner world like a proper guard dog, it can't speak normally but can utilize normal dog calls to communicate so it's up to the user to learn what these calls mean.

Shikai Abilities: This weapon grants the user the limited ability to control darkness in its purest form allowing them to manipulate it into anything to serve their purpose with the basics of being just basic umbra manipulation though the user has spent time developing a set number of techniques to help aid them in battle.

*Brutal Swing: This user coats the blade of the scythe with fiery like darkness then swings the blade causing increased damage in both slicing and the shadows actually give a Bludgeoning effect as well increasing the physical damage that will be inflicted to the target.

*Dark Pulse: The User points the top of the scythe which darkness is being collected then is fired like a beam of darkness which deals pretty high damage and strong enough to flatten a thick wall in one shot.

*Dark Void: the user spins the scythe overhead several times before slamming the end of the staff onto the ground which causes all foes in a 30 foot radius, excluding allies, to be enveloped into darkness and forced into a deep sleep which they will be inflicted with debilitating nightmares which attacks there psyche.

*Max Darkness: The User envelops the blade of the scythe in pure darkness which slowly grows and grows before the user unleashes it by slashing forward dealing a massive arc of pure shadows slicing through all in a curessent shaped attack, similar to the getsuga tenshou in operation but significantly more powerful.

Bankai Name: Keiyaku suru tsuki yagi no kiba

Bankai Translation: Contracting Fang of the Lunar Goat.

Bankai Release Command:(Optional) None.

Bankai Activation Design: Black souls descend from the sky and start surrounding and 'consuming' the user before a massive black haze explosion is seen showcasing the user now in a cloak of a reaper with the new weapon in hand.

Bankai Design: No Change.

Bankai Spirit Appearance: No Change.

Bankai Spirit Personality: No Change.

Bankai Abilities: The Users ability in umbrakinesis has grown to untold heights that even the manipulation of the shadows could be on par with Ryujin Jakka itself which is a feat by itself, The can now control the shadows in its purest form with little to no limitations though the user has also developed a set number of techniques to Sue during Bankai which is significantly more powerful than the Shikai techniques.

*Assured Retaliation: This attack can only be done if the user had been attacked previously, one this condition has been met, the user takes an increase of power by whatever damage had sustained earlier and increases the attack power of their next attack. The stronger the attack that the user sustained, the stronger the retaliation attack will be.

*Black Hole Eclipse: The User starts to conjure and create a miniaturized black hole that sucks up everything within it and is launched to any unfortunate target, of small enough, the target will be sucked up and crushed into oblivion inside the black hole but if large enough then the user will suffer from immense physical gravitational damage inflicted by the shadow black hole, after 2 minutes then the black hole will collapse and then disappears.

*Ceaseless Edge: The User coats the edge of the blade with a sleek sheen of pure elemental darkness then dashes to slice through the target, this ability allows the user to cut through ANYTHING in a single strike regardless how physically strong they are, no matter the type of shield, to even cutting through abstract concepts as the dark always hits everything.

*Fiery Wrath: The User coats the blade in a fiery wisp of darkness which then the user can unleash any form of attack as the darkness actually embodies several elements of elemental Fire meaning the darkness can burn the target and sear/cauterize the wound due to how hot the blade is.

*Hyperspace Fury: The User and the Weapon is coated in a flowing wisp of pure darkness then the user charged at the target at speeds that would make Yoruichi whistle and slash at the target at speeds that would be considered blinding before the target is sliced into shreds, however this attack does damage the users legs by tearing muscle strands so it's treated more as a last resort.

*Ruination: This Move causes the user to embody the dark entirely by shifting their form from a human into the grim reaper itself and strikes at the string of their very soul, by cutting this, the user cuts the very life that they have, killing them instantly and the only move banned from use outside of war time, the downside is that this technique immediately takes the user out of Bankai and places the entire weapon in cooldown for several days.