Diabolos Dragon

* －D×D・God－
* －D×D・Lucifer－

 **Diabolos Dragon Lucifer:*** Satan Compression Divider
* Satan Lucifer Smasher
* Albion Manifestation

**Diabolos Dragon** is the second upgraded form of the Scale Mail after Issei borrows the power of Ophis. By syncing the powers of both Albion and his Lucifer power with Ophis' help, Vali became capable of activating a similar form.

## Summary

The Diabolos Dragon form is first seen in Volume 20 when Issei received the full support of his parents, unlocking it with Ophis' help. With it, he was able to overcome Rizevim's *Sacred Gear Canceller* and quickly defeat him. However, the immense power of the form caused him to painfully collapse after its release.

Vali also attains his own version of the Diabolos Dragon in Volume 21 with Ophis' assistance. However, Vali's version is powered by syncing his previously dormant power of Lucifer with Albion's own. In the same Volume, after Issei's battle against Apophis and the Trihexa Core, Ophis reduces the power of Issei's Diabolos Dragon and removes the "infinity" aspect in it, successfully eliminating the life-threatening setbacks it previously had.

In Volume 23, Issei reveals the ability to perform a partial Pseudo-Dragon Deification on his left arm, allowing him to use his Dragon God Aura to a lesser extent with less stamina consumption. With this technique, Issei can combine his Dragon God aura into both Solid Impact Booster and Dragon Shot.

In Volume 25, after drinking the miracle drug, Amrita, he became able to maintain his Pseudo-DxD Form for 88 minutes in combat and even became able to manifest Ddraig in his true form after the [8] countdown reaches zero as a result of the miracle caused from the drug.

## Form

* Diabolos Dragon God
* Diabolos Dragon Lucifer

#### Diabolos Dragon God

**Diabolos Dragon・G** (龍神化－『D×D』・G－ディアボロス・ドラゴン・ゴッド) is Issei's version of the Diabolos Dragon. The armor becomes colored in a mix of crimson and black and a second pair of Dragon wings appear on its back, totaling in four. After the battles against Apophis and Trihexa, Ophis reduces the power of the DxD G and removes the infinity in it to remove its almost fatal side-effects. This adjusted DxD is dubbed *Pseudo-Dragon Deification* (疑似龍神化, *Giji no Ryūjin-ka*). The form can only be maintained for a maximum of three minutes at a time, but attacking, defending and moving will further reduce this time limit, to the point that usage in actual combat generally amounts to nothing more than ten seconds. After drinking the miracle drug Amrita, the countdown of his Pseudo-DxD changed from ten seconds to eighty-eight minutes, reflected by [88] on his left gauntlet. During his fight with Angra Mainyu, Issei unlocks *True-Dragon Deification* (真の龍神化, *Shin no Ryūjin-ka*), which is described as having Devil, Dragon, and God aura. Hades notes that Issei's power in this form is even greater than when he was in Pseudo-DxD.

* **Infinity Blaster** (インフィニティ・ブラスター, *Infiniti Burasutā*): A further enhanced version of the *Crimson Blaster*. Similarly to Cardinal Crimson Promotion, DxD's wings contain hidden cannons. These four cannons shoot out a powerful blast of red and black aura that can injure even a Super Devil like Rizevim to the point of near-death. Initially, due to the unstable nature of Issei's Pseudo-DxD, a single usage of the blast in Pseudo-DxD will reduce the time limit of three minutes to ten seconds. After drinking the miracle drug Amrita, Issei has overcome this weakness and can maintain his armor after shooting Infinity Blaster.

* **Longinus Smasher** (ロンギヌス・スマッシャー, *Ronginusu Sumasshā*): This form is not only capable of this move, but the blast it shoots out has been enhanced with the power of infinity. When used in tandem with the Infinity Blaster, the two attacks can merge into an even more powerful blast capable of penetrating through the attacks of the Evil Dragon Apophis, who had reached Heavenly Dragon-class in power and damaging him fatally.

* **Red Dragon Emperor Ddraig Manifestation** (赤龍帝ドライグ顕現, *Sekiryūtei Doraigu Kengen*): Due to drinking the miracle drug Amrita, Issei gained the ability to summon Ddraig into battle after the [8] countdown on the right gauntlet reaches zero.

* **Dress Break DxD**: An enhanced version of the spell augmented by the Diabolos Dragon armor, by using his Dragon God aura, he can halt his target’s movement. While strengthening his left hand he can destroy a female uniform without touching it.

#### Diabolos Dragon Lucifer

**Diabolos Dragon・L** (魔王化－『D×D』・L－ディアボロス・ドラゴン・ルシファー) is Vali's version of the Diabolos Dragon, which is achieved through the combination of the powers of Albion and Lucifer dubbed *Maouification* by Aži Dahāka. The armor becomes colored in a mix of silver and black and gains twelve mechanical Devil wings. This form can only be sustained for a short time that has yet to be revealed in detail.

* **Satan Compression Divider** (サタン・コンプレッション・ディバイダー, *Satan Konpuresshon Dibaidā*): Vali builds up his power and releases an ultimate blast of silvery-white and black demonic radiance that halves anything within its range until it vanishes from existence. Azi Dahaka notes that this is not an ability or a technique, but a simple release of light.

* **Satan Lucifer Smasher** (サタン・ルシファー・スマッシャー, *Satan Rushifā Sumasshā*): An enhanced version of the Boosted Gear's Longinus Smasher. Much like with the former, the armor plates on the chest and abdomen slide open to reveal a cannon muzzle that promptly fires a massive bombardment of silver-white and jet-black aura. When hit directly, this attack is powerful enough to fatally injure Aži Dahāka, an Evil Dragon who had reached Heavenly Dragon-class in power.

* **Dividing Wyvern Fairy**(白龍皇の妖精達ディバイディング・ワイバーン・フェアリー, *Dibaidingu Waibān Fearī*): In this form, Vali can detach his wings and shape them into small white Wyverns that can use **Divide** (ディバイド, *Dibaido*), **Reflect** (リフレクト, *Rifurekuto*) and **Half Dimension** (ハーフ ディメンション, *Hāfu Dimenshon*). The Wyverns are also able to morph into cannons that fire out powerful shots of Lucifer’s aura. The Wyverns are also able to use Albion's **Reduce**  (減少, *Genshō*) ability, a deadly poison that can destroy even Gods by cutting down not only their bodies but also their souls. However, this poison is ineffective towards Ophis, Great Red and Ddraig.

* **White Dragon Emperor Albion Manifestation** (白龍皇アルビオン顕現, *Hakuryūkou Arubion Kengen*): Vali gained the ability to summon Albion into battle by performing a chant.
	+ Vali: **Be resurrected! Vanishing Dragon that dwells inside of me!**

## Chants

* Diabolos Dragon God
* Diabolos Dragon Lucifer

Issei and Ophis alternate lines when chanting the (Pseudo)/[True] Diabolos Dragon God chant.

### Diabolos Dragon

* English
* Kana
* Romanji

* Issei: **The Crimson Red Dragon dwelling within me, awaken from your dominance**
* Ophis: **The Crimson Heavenly Dragon I possess within me, rise up to become a King and roar**
* Ophis: **The jet-black God of Infinity**
* Issei: **The glorious Red God of Dreams**
* Both: **Watch over the forbidden existence we shall become that transcends the boundaries**
* Both: **Thou shall dance like radiance within our inferno!**

- Issei: 我に宿りし紅蓮の赤龍よ、覇から醒めよ

- Ophis: 我が宿りし真紅の天龍よ、王と成り啼け

- Ophis: 濡羽色の無限の神よ

- Issei: 赫赫たる夢幻の神よ

- Both: 際涯を超越する我らが禁を見届けよ

- Both: 汝、燦爛のごとく我らが燚にて紊れ舞え

- Issei: Ga ni yadorishi guren no akaryū yo, ha kara sameyo

- Ophis: Waga yadorishi shinku no Tenryū yo,-ō to nari nake

- Ophis: Nurebairo no mugen no kamiyo

- Issei: Kakkakutaru mugen no kamiyo

- Both: Saigai o chōetsu suru warera ga kin o mitodokeyo

- Both: Nanji, sanran nogotoku warera ga itsu nite binre mae

### Pseudo Diabolos Dragon God

* English
* Kana
* Romanji

* Issei: **The Crimson Red Dragon dwelling within me, awaken from your dominance**
* Ophis: **The Crimson Heavenly Dragon I possess within me, rise up to become a King and roar**
* Ophis: **The jet-black God of Infinity**
* Issei: **The glorious God of Dreams**
* Both: **Watch over the (false) forbidden existence we shall become that transcends the boundaries**
* Both: **Thou shall dance within our radiant inferno!**

- Issei: 我に宿りし紅蓮の赤龍よ、覇から醒めよ

- Ophis: 我が宿りし真紅の天龍よ、王と成り啼け

- Ophis: 濡羽色の無限の神よ

- Issei: 赫赫たる夢幻の神よ

- Both: 際涯を超越する我らが偽りの禁を見届けよ

- Both: 汝、燦爛のごとく我らが燚にて紊れ舞え

- Issei: Ga ni yadorishi guren no akaryū yo, ha kara sameyo

- Ophis: Waga yadorishi shinku no Tenryū yo,-ō to nari nake

- Ophis: Nurebairo no mugen no kamiyo

- Issei: Kakkakutaru mugen no kamiyo

- Both: Saigai o chōetsu suru warera ga itsuwarino kin o mitodokeyo

- Both: Nanji, sanran nogotoku warera ga itsu nite binre mae

### True Diabolos Dragon God

* English
* Kana
* Romanji

* Issei: **The Crimson Red Dragon dwelling within me, awaken from your dominance**
* Ophis: **The Crimson Heavenly Dragon I possess within me, rise up to become a King and roar**
* Ophis: **The jet-black God of Infinity**
* Issei: **The glorious God of Dreams**
* Both: **Watch over the [true] forbidden existence we shall become that transcends the boundaries**
* Both: **Thou shall dance within our [perfected] radiant inferno!**

- Issei: 我に宿りし紅蓮の赤龍よ、覇から醒めよ

- Ophis: 我が宿りし真紅の天龍よ、王と成り啼け

- Ophis: 濡羽色の無限の神よ

- Issei: 赫赫たる夢幻の神よ

- Both: 際涯を超越する我らが真なる禁を見届けよ

- Both: 汝、燦爛のごとく我らが完全なる燚焱にて紊れ舞え

- Issei: Ga ni yadorishi guren no akaryū yo, ha kara sameyo

- Ophis: Waga yadorishi shinku no Tenryū yo,-ō to nari nake

- Ophis: Nurebairo no mugen no kamiyo

- Issei: Kakkakutaru mugen no kamiyo

- Both: Saigai o chōetsu suru warera ga kin o mitodokeyo

- Both: Nanji, sanran nogotoku warera ga kanzen'naru itsu keki nite binre mae

Vali, Albion, and Ophis alternate lines when chanting the Diabolos Dragon Lucifer chant.

* English
* Kana
* Romaji

* Vali: **The pure White Dragon dwelling within me, rise up from your supremacy**
* Albion: **The silvery-white Morning Star I possess within me, claim the throne of Dawn**
* Ophis: **The jet-black God of Infinity**
* Vali: **The mysterious and unfathomable father of Devils**
* Vali and Albion: **We shall transcend the limits to accept the oath**
* All: **Thou shalt kneel down before our bright and glorious existence!**

- Vali: 我に宿りし無垢なる白龍よ、覇の理をも降せ

- Albion: 我が宿りし白銀の明星よ、黎明の王位に至れ

- Ophis: 濡羽色の無限の神よ

- Vali: 玄玄たる悪魔の父よ

- Vali and Albion: 究極を超克する我らが誡を受け入れよ

- All: 汝、玲瓏のごとく我らが燿にて跪拝せよ

- Vali: Ga ni yadorishi mukunaru haku ryū yo, ha no ri o mo kudase

- Albion: Waga yadorishi shirogane no myōjō yo, reimei no ōi ni itare

- Ophis: Nurebairo no mugen no kamiyo

- Vali: Gengentaru akuma no chichiyo

- Vali and Albion: Kyūkyoku o chōkoku suru warera ga kai o ukeireyo

- All: Nanji, reirō nogotoku warera ga hikari nite kihai seyo

## Trivia

* The shortened name of the form can refer to one it's users, Issei Hyoudou, who was reborn from Great Red's flesh and also bears the name.
* The shortened name can also be a reference to both users, Issei Hyoudou and Vali Lucifer, as it refers to themselves: "Diabolos (Devil) Dragon" as both of them are Devils (Vali via his Old Lucifer heritage and Issei via being reincarnated into a Devil by Rias using her Evil Pieces) and Dragons (by being the possessors of the Longinuses which house the Two Heavenly Dragons inside them and Issei possessing the flesh of Great Red).
* After attaining Diabolos Dragon, Issei's 4 Pawn Evil Pieces mutated into Mutation Pieces, along with the 4 already mutated by attaining Illegal Move Triaina and Cardinal Crimson Promotion.