[Felt like doing this Because there are a lot of these, and I already have a list of them, so I might aswell show you guys.
Like the Character Bios in Pitch Black Clover, I'll be updating this as the story continues]

[Hibiki Kibōjutsu!]

Also nown as Hibiki Oni Art Technique, Y/n has merged the bases of Total Concentration Breathing with the Oni equivalent of a Demon Blood Art, causing the Purple Flames of Hibiki to appear when he attacks. Y/n's fighting style mimics that of a Taiko Drum player swinging their Bachi. With his mass of Combat Training to be the Japanese Government's Best Contracted Killer in his past life, he has skills that surpass even the Hashira and has also gained the ability to disassociate People as Human Beings, equating them to Monsters, making killing people much easier for him, this makes him even better at fighting against Yokai, Demons, and especially other Oni.

[No Bachi Style]

When Y/n uses Hibiki Kibōjutsu with normal unarmed attacks, they cause an explosion of Purple Flame and Power.

First Verse: Palm Strike

Y/n reels back his open palm causing a small spark of purple flame appear in the center of it, before thrusting said hand forwards slamming his palm into his target, causing an explosion of power from contact no matter the power behind it.

Second Verse: Full Oni Discipline

Y/n reels back his fist and unleashes a full force dose of Discipline directly to a Friend of Foe's Cranium. Against a Friend, worst is that they get knocked unconscious, against an enemy... well there's a Specific Scene in the End of JJBA Part 5...

[One Bachi Style]

Wielding his Bachi in one of his hand, Y/n strikes with a mass of power behind the strikes. The Verses/Forms of this style don't exist as the verses are just named after the number of Strikes Y/n gets in.

[Two Bachi Style]

Wielding his Bachi in both of his hands, Y/n strikes with a mass of power behind the strikes. The Verses/Forms of this style don't exist as the verses are just named after the number of Strikes Y/n gets in.

Kamigami No Uta

Wielding both of his Bachi, Y/n preforms the Sacred Song Of Gods against his enemy causing an unknown mass of power to explode out and destroy any target hit with this power. It was first used against Todoroki, but it was more powerful than normal, Y/n noticed this but never questioned it, thinking that because it was the first time he used the attack he put too much power behind his strikes, when in reality, something very similar to the Kamigami No Uta appeared at the same time, causing both of these Powers to be Enhaced. This sacred song can only be played as an attack while Y/n is in his Hibiki Kurenai form, or he will suffer the same damage he deals to his enemy.

[No Bachi Sword Style]

While fighting unarmed, Y/n uses his hand in a Chopping Style, surrounding the edge of his hand in Purple Flames allowing him to Slash things and enemy with ease.

First Verse: Breaking Strike

Raising his Hand, Y/n chops with full power, with this Technique he's even able to shatter Nichirin Blades.

[One Bachi Sword Style]

Wielding one of his Swords as if they were a Bachi, Y/n unleashes a mass of power in his Single Handed Slashing attacks. Y/n can also preform One Bachi Sword Style Two Times while wielding both of his blades.

First Verse: Haruka Mirai

A Simple yet power downwards slash, Y/n can use this attack with Special Purple and Black Flames of Hibiki to cancel out Demon Blood/Oni Arts that he doesn't feel like dealing with. Much like the name of this attack, Y/n stole this move from Black Clover.

Second Verse: Rekkaken

Y/n surrounds his Chokuto in a mass of Purple Flame, extending the blade like a Certain Enemy he has fought in the past, slashing with a mass of power.

Third Verse: Spiral Point Stab

Surrounding His blade in Spialing Purple Flames, Y/n stabs his blade into the ground, causing a mass of fire to spiral around Y/n like a hurricane, protecting Y/n and anyone around him from incoming attacks.

Fourth Verse: Symphony Conductor

Slashing in the same direction as an incoming Demon Blood/Oni Art, Y/n can control the flow of these attacks and send them flying right back at the attacker.

Fifth Verse: HIT HIT HIT PARADE!

Dashing past an enemy, Y/n slashes them over and over and over and over, causing a blaze to explode from the wounds inflicted. Y/n stole the name of this attack from the band Bradio.

Seventh Verse: Shin Takarajima

Unlike most verses, Y/n uses this technique unconsciously all the time. When a mass of attacks come flying at Y/n, he easily dodges and dances out of the way of those attacks with unnatural ease. Y/n attributes this skill to the fact that he sweated Shoot 'em ups like it was his full time job. He also stole the name of this Technique from Sakanaction.

Ninth Verse: Golden Liar

Y/n created this form after defeating Yashirama/Todoroki and Gaining his Powers, he also named the Technique after Yashirama. This Technique also can only be preformed while wielding the Ongekigen Retsurai. While distracting his enemy, Y/n creates a clone behind them and that Clone attacks from behind.

[Two Bachi Sword Style]

A very simplistic style of fighting for Y/n. He doesn't name most of his attacks in this style as he mostly just uses his One Bachi Sword Style Techniques with both of those blades.

First Verse: Drop Quarter

Y/n simply slashes with each sword once, this attack is only named to confuse his enemies.

Second Verse: Double Sharp

Y/n simply slashes with each sword twice, this attack is only named to confuse his enemies.

Third Verse: SoraIro

Flying/Falling towards his enemy Y/n spins around and slashes like crazy over and over resembling a Drill. Y/n stole both the name and attack from Gurren Lagann.

Fourth Verse: Gamushara

Running towards his enemies, Y/n throws away all reason and strategy and slashes like crazy hoping he hits something. He stole the name from Black Clover.

Fifth Verse: Flame Parade

Y/n's favorite attack as it's the only Ranged one. He slashed his blades, sending 2 X Shapped Purple Flame slashes flying through the air and towards his enemies.

[Total Concentration Breathing]

[Ice Breathing]
(Water + Wind Breathing)

A Style of sword fighting that Mimics the sudden change of Water to Ice in fluent movement yet extremely harsh and powerful slashes.

First Form: Flash Freeze Frenzy

Y/n Dashes Forwards with his swords at his right and left sides, the tips of the blades pointed towards the ground. He then dashed past his enemy slashing them over and over in the blink of an eye, causing them to instantly be caught in a large Mass of Ice.

Second Form: Capering Ice-Cap

Holding both of his swords at his Left Side, Y/n dances around an enemy's attack and counters at the same time, freezing his enemy in place in a single simply yet powerful movement.

[????? Breathing]
(Water + ???? Breathing)

A style of sword fighting that mimic the ????'s affects in the ?????'s ?????. The Least Dominant Hand will always strike first making the cresent shaped slash, before the right makes a more complicated and powerful fluent move much like that of Water Breathing, causing an X or + to be formed with each techniques form.

[Oni Arts]

Ongekiko

Ongeki Da: Kaen Renda no Kata
Aka
Oni Art: Hibiki

Placing his Ongekiko Drum on an enemy of summons it infront of himself as a Giant Taiko. He then slams either his enemy or the taiko with his Bachi a total of 30 times, completely turning them to Stone.

Ongekimei

Ongeki Sha: Shippū Issen
Aka
Oni Art: Ibuki

Taking his Trumpet Ongeki, Y/n hesitantly and somewhat lazily plays it, causing the vibrations and magical powers of the Ongeki to slam into an enemy from afar, turning them completely to stone.

Ongekigen Enma/Retsurai

Ongeki Zan: Sabaki
Aka
Oni Art: Sabaki

Y/n strums the Ongekigen Enma's strings, sending a powerful bolt of lightning flying through the air towards his enemy.

Ongeki Zan: Zanki
Aka
Oni Art: Zanki

Slashing one or both of his Ongekigen through the air, Y/n sends a blade of electricity flying through the air towards his enemy.

Ongeki Zan: Raiden Gekishin
Aka
Oni Art: Todoroki

Stabbing his weapon into an enemy, Y/n then begins jamming out on his Ongeki, causing a the vibrations of the ongeki to quickly turn his enemy into stone.

Oni Secret Art: One Man Band

Y/n places the Oni Symbols he has aquire from Real and Replica Ongeki onto a Physical Object, those Objects then become clones and along with Y/n, play a rocking tone that can destroy almost any enemy.

Oni Secret Art: Hibiki Kurenai

Calling apon the power of his own Song in constant and seemingly endless Symphony of Life, Y/n forces his own heart to beat in the same Rythym as that song. If he is knocked out of this form he will die as his Heart is Forced to stop, but while in this form his power is beyond increased. This form is also the only way he can play the Kamigami No Uta as an Attack. Y/n calls this form "The Greatest Risk Vs Reward" and his "All Or Death Power".