Bankai
Bankai name: Kamishini no Kaze (神殺風, literally meaning "God-Killing Wind")
Bankai appearance: While his Bankai is active, Eldridge gains a reiatsu shroud, which manifests around his entire body. This shroud of reiatsu not only provides a better protection than Eldridge’s clothes, but also doesn’t slow him down as it is made of reiatsu, and thus weightless. The shroud is silver-white like Eldridge’s reiatsu in Bankai, and releases spiritual pressure constantly, looking like flickering flames. Eldridge’s clothes and even his skin take this color, except the places with markings and his eyes. The markings are dark gray. His sclera turn into the same color, but his irises take a lighter tone. A circular marking appears on Eldridge’s chest and both arms, along with six magatama markings around the neck. Lateral and lineal markings also appear at various places, mainly on Eldridge’s hands and arms. These markings are all dark gray in color. In addition to his robe, his sword changes too and takes a pure white color, including the blade and the scabbard. Seemingly blue winds engulf the sword, but it's something that changes its appearance and doesn't provide a new ability whatsoever. Additionally, ten spheres of malleable dark gray reiatsu form behind Eldridge. These are called Gudōdama (求道玉, literally meaning "Truth-Seeking Balls"). Eldridge can move and control the Gudōdama at will, though they do not possess an extra property other than the physical damage they can cause by hitting.
Bankai appearance: While his Bankai is active, Eldridge gains a reiatsu shroud, which manifests around his entire body. This shroud of reiatsu not only provides a better protection than Eldridge’s clothes, but also doesn’t slow him down as it is made of reiatsu, and thus weightless. The shroud is silver-white like Eldridge’s reiatsu in Bankai, and releases spiritual pressure constantly, looking like flickering flames. Eldridge’s clothes and even his skin take this color, except the places with markings and his eyes. The markings are dark gray. His sclera turn into the same color, but his irises take a lighter tone. A circular marking appears on Eldridge’s chest and both arms, along with six magatama markings around the neck. Lateral and lineal markings also appear at various places, mainly on Eldridge’s hands and arms. These markings are all dark gray in color. In addition to his robe, his sword changes too and takes a pure white color, including the blade and the scabbard. Seemingly blue winds engulf the sword, but it's something that changes its appearance and doesn't provide a new ability whatsoever. Additionally, ten spheres of malleable dark gray reiatsu form behind Eldridge. These are called Gudōdama (求道玉, literally meaning "Truth-Seeking Balls"). Eldridge can move and control the Gudōdama at will, though they do not possess an extra property other than the physical damage they can cause by hitting.
Zanpakuto Spirit: The Bankai form of Shinseikaze resembles a teenage version of himself, relatively shorter and younger than Eldridge, with a noticeably slimmer build. His attire is a more defined, white and robe-like version of his Shikai form's overcoat, with the addition of a hood. It is worn so that his arm only goes through the left sleeve, and the right half droops down over his obi. Underneath, he wears a black, red-lined shirt with a popped collar and black pants. The blade of the sword he is holding is pure white, just like his reiatsu. His hair and eye color remain the same, except the length of his hair which seems to be slightly shorter than before. He usually seems to carry a murderous look in his eyes, something that is often commented by his master along with their unusual red color.
Spirit's Personality: In his Bankai form, Kamishini no Kaze seems to have the same cool and calm collected disposition as he would when in Shikai; however, he is far more aggressive. He no longer has the same respect he had in Shikai for Eldridge, even though he still acknowledges him as his master. In fact, he is much more rebellious just like Eldridge. In addition to that he gets angry if somebody makes the mistake of calling him and his Shikai form, Shinseikaze, the same being, as he believes they are not. He sees not only his Shikai form but also others as weak and inferior beings; a personality trait that has been reflected to his master as well.
Spirit's Personality: In his Bankai form, Kamishini no Kaze seems to have the same cool and calm collected disposition as he would when in Shikai; however, he is far more aggressive. He no longer has the same respect he had in Shikai for Eldridge, even though he still acknowledges him as his master. In fact, he is much more rebellious just like Eldridge. In addition to that he gets angry if somebody makes the mistake of calling him and his Shikai form, Shinseikaze, the same being, as he believes they are not. He sees not only his Shikai form but also others as weak and inferior beings; a personality trait that has been reflected to his master as well.
Bankai: Unlike most Bankai forms, which usually create some sort of massive creature or effect, Eldridge’s Bankai actually shrinks. Much like its Shikai form, it is used heavily for melee combat, but also possesses a certain special ability.
Hyper-Speed Combat: Eldridge takes all the power of his Bankai and compresses it into a small, condensed form. Then, he uses the power of the Bankai to perform high-speed combat.
Bankai Special Abilities: Kamishini no Kaze retains the use of Shikai powers and can be used in the same ways, but in an enhanced form.
Ayatsuri no Kuuki (操りの空気 , literally meaning "Air Manipulation"):
Ayatsuri no Kuuki is Shinseikaze's main and also the strongest ability. With its power, Eldridge can create, control, and manipulate the air as well as the winds. Several ways of its utilization has been shown throughout its history of usage. For example, it can be used as a more offensive move involving a direct pulse or jet of almost solid wind from the hands, feet, or sword. The force of the attack is generated more from the user's own power, rather than assisted by momentum. This direct blast can reach further with greater accuracy, and is used to inflict greater damage. On another instance, by using the Air Manipulation to display circular, evasive movements, Eldridge can build up massive momentum. It also allows for wind-based counter-attacks that knock opponents off-balance, mimicking the sudden directional shifts of air currents. Attacks vary from simple gusts of wind to miniature tornadoes and cyclones, maintaining the circular theme. Additionally, Eldridge has the ability to manipulate and alter the quality of the air.
Hyper-Speed Combat: Eldridge takes all the power of his Bankai and compresses it into a small, condensed form. Then, he uses the power of the Bankai to perform high-speed combat.
- Enhanced agility: Air movements can also be used as a levitation aid. Eldridge can jump high and far by riding on strong gusts of wind, and can slow or deflect falls by creating cushions of air. The constant movement required by this art makes him naturally flexible and agile. Even without air, he can easily maneuver around an opponent by ducking, jumping, and side stepping, appearing to flow around their opponents without expending any energy at all, letting the opponent tire themselves out and thus creating exploitable openings. This conservation of energy combined with high stamina gives him an advantage in prolonged combat.
- Enhanced speed: Eldridge can enhance his movement in battle; he can run swiftly by decreasing air resistance around him and even sprint across or run up vertical surfaces by generating a wind current behind him to propel himself forward. Combined with the initial compression of the Bankai, it increases his speed greatly.
Bankai Special Abilities: Kamishini no Kaze retains the use of Shikai powers and can be used in the same ways, but in an enhanced form.
Ayatsuri no Kuuki (操りの空気 , literally meaning "Air Manipulation"):
Ayatsuri no Kuuki is Shinseikaze's main and also the strongest ability. With its power, Eldridge can create, control, and manipulate the air as well as the winds. Several ways of its utilization has been shown throughout its history of usage. For example, it can be used as a more offensive move involving a direct pulse or jet of almost solid wind from the hands, feet, or sword. The force of the attack is generated more from the user's own power, rather than assisted by momentum. This direct blast can reach further with greater accuracy, and is used to inflict greater damage. On another instance, by using the Air Manipulation to display circular, evasive movements, Eldridge can build up massive momentum. It also allows for wind-based counter-attacks that knock opponents off-balance, mimicking the sudden directional shifts of air currents. Attacks vary from simple gusts of wind to miniature tornadoes and cyclones, maintaining the circular theme. Additionally, Eldridge has the ability to manipulate and alter the quality of the air.
- Kazekiri (風切り, literally meaning "Wind Cutter"): Kazekiri, as Eldridge named it, is an offensive move that combines brute force and keen precision of the Air Manipulation. At the instant of the slash or the swipe, the Zanpakutō or the limb (depending on which one is being used), uses the Air Manipulation to manipulate and enhance pre-existing air currents. After the air is sharpened and compressed during the swing or the swipe, it's released from the tip of the blade or the limb, magnifying the slash attack, which then flies forward. The wind flows out of the blade in different shapes as it fires in the arc of the sword’s swing but the slash usually takes the form of a crescent-shaped structure of compressed air or the shape of a wave. Kazekiri is a powerful technique with great force, capable of creating large-scale damage and destruction or slicing through multiple targets located a significant distance from the user, causing grievous injuries to those hit. Eldridge has used this technique in several different manners, such as striking the ground to create an omnidirectional blast to knock away incoming attacks or slashing at the ground to upturn it and crush everything in its path. This technique can also be charged up by adding reiatsu to it and can produce more damage. Additionally, Kazekiri is often seen being used as a ranged attack, though it's also possible to utilize it in short range by keeping the technique intact around the sword, limb or hand without releasing it. Kazekiri's most outstanding feature is the fact that it uses the existent air to form itself. This allows Eldridge to use spiritual pressure not to create or form the technique, but enhance it instead. This makes Kazekiri effective since the same amount of reiatsu can be used for a stronger attack. As Eldridge has elemental reiatsu and is able convert it into air itself, even if there is no air around (which is hardly possible) there is still a way for Kazekiri to be utilized.
- Kazeyūheki (風流壁, literally meaning "Wind-Style Wall"): Kazeyuuheki, as it was named by Eldridge, is a defensive technique that lets him create a barrier using his Air Manipulation. The wind barrier can be created either in front of the sword or a limb. Creating it in front of the sword results in a barrier without a stationary shape: it looks as if it has a rounded outline but the edges seem to constantly move like the winds. It is greater than Eldridge himself, both in height and width. Choosing to apply the technique in front of a limb, however, results in a more solid-looking wind barrier. In such sets of circumstances, a hexagonal-shaped barrier forms in front of the said limb. The barrier is smaller than Eldridge, but still relatively bigger than the limb he uses it with. This actually allows him to freely switch between offense and defense, allowing him to even use the shield to attack an opponent with a sharp tackle. He can also be seen using the barrier to parry an attack and proceed with a counter with his sword. Like Kazekiri, Kazeyuuheki also uses the existent air to form itself and spiritual pressure to strengthen and enhance it. Both types of the shields are created by compressing the already existing winds, enhanced by reiatsu. They only protect the direction that the barrier is facing. Yet, Eldridge can turn and face his opponent or the attack in the direction that it is coming from and block it, not to mention that he is able to move around with the shield active.