Characters / High School DD: Dragons

All spoilers regarding the first three story arcs (volumes 1-12) are unmarked. Examples pertaining to the fourth story arc can be spoiler tagged if necessary.

The Dragons featured in High School DD.

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    In General 
  • The Ageless: All other races age, including Gods. Dragons are immortal unless they're killed. Specifically they stop aging once they reach maturity.
  • Ax-Crazy: The evil dragons. So much that Grendel and Azi Dahaka fought against each other just to figure out who's going up against the Vali team.
  • Chaotic Neutral: Invoked. According to Ddraig, in the past, most dragons just lived freely to their hearts content. These days, it depends on the dragon.
  • Dragon Hoard: Some of them are known to collect treasure. Fafnir requires his contractor to give him something for his help (which, in Asia's case, is often lingerie), and Tiamat's briefly mentioned hatred of Ddraig is later revealed to be the result of Ddraig breaking some treasure that he took from her to fight.
  • Kryptonite Factor: The only things that can kill dragons are dragon-slaying weapons like Issei's Ascalon or the blood and attacks of the fallen angel Samael.
  • No Gender: Zig-zagged. Dragons are said at one point to have no gender in this story. However, in the short story where Asia gets her familiar, baby dragon Rassei was stated to be a boy and Dragon King Tiamat, the only female of that rank; the only one specified to have no gender is Ophis, because of its unique trait as Infinite.
  • Our Dragons Are Different: The most powerful race in the story are dragons themselves. Both Western and Eastern dragons appear, but the vast majority are Western.
  • Resurrective Immortality: As long as even a small piece of an Evil Dragon's soul remains, they can revive themselves, though it takes a few thousand years.
  • Unstoppable Rage: With enough provocation, a Dragon will enter "Outrage" mode, becoming significantly more powerful and vicious. Azazel commented that most people know better than to piss one off.

     Heavenly Dragons 

Dragons based from the Arthurian legend of Merlin watching an endless colossal fight between a red and white dragon (who symbolises Wales and England, respectively).

Welsh Dragon Ddraig

http://static.tvtropes.org/pmwiki/pub/images/ddraig_red_dragon_emperor___profile_pic_infobox.png
Voiced by: Fumihiko Tachiki (Japanese) and Christopher Sabat (English)

"BOOST!"

One of the two Heavenly Dragons who got sealed thanks to them fighting off the other three factions. He is the dragon who is residing with Issei as the Longinus "Boosted Gear", and thus he has to put up with all of Issei's perverted antics.
  • Bilingual Bonus: Ddraig is part of a Welsh phrase meaning "The Red Dragon".
  • But Now I Must Go: Tells Issei that he's losing consciousness because of him using up his powers in trying to maintain Issei's soul while Great Red and Ophis are creating his new body. Issei then sheds a lot of tears till he hears Ddraig snoring.
  • Cassandra Truth: He did hear the voice of the Breast Fairy when Issei accidentally summoned it instead of being able to talk to Akeno's breasts with Bilingual. Everyone just thinks Ddraig lost it.
  • Cosmic Plaything: Doesn't appreciate it when he gets called Oppai Dragon by both Ophis and Great Red.
  • Embarrassing Nickname: Oppai Dragon (Breast Dragon) and the Breast Dragon Emperor.
  • Forever War: He and Albion have basically forgotten what the fight was originally about. Volume 21 implies it was his flames and Albion's poison being ineffective on each other that started it, as it gave them each a Worthy Opponent for the first time in their lives, convincing them to both get stronger by constantly challenging and fighting each other.
  • Heroic B.S.O.D.: Played for laughs whenever someone calls Issei Oppai Dragon. It gets to the point that it actually makes him clinically depressed and he requires medication and psychological counseling.
    • Taken Up to Eleven when he is crying hysterically for a counselor when Ophis curiously ask if he quit being the Red Dragon Emperor and became Oppai Dragon instead.
  • Intergenerational Friendship: Considers Issei to be a true friend seeing as his former hosts never really talked much with him.
  • Large Ham: Not fully, but he does put a lot of energy into his battle phrases, such as 'Boost!'
  • Lonely at the Top: Was this until he met Albion. If he had never met him, he would have been only famous for his god consuming flames and wouldn't have developed his Boost and Penetrate abilities.
  • Meaningful Name: Ddraig is part of the Welsh phrase Y Ddraig Goch, meaning "The Red Dragon". It also appears on the flag of Wales.
  • Mood Dissonance: Tells Issei that it was fun being with him and it actually looks like he's about to say his last words to his partner. Issei couldn't even control his tears at his closest partner disappearing from him until Issei hears Ddraig snoring.
  • Playing with Fire: Blazing Inferno of Scorching Flames, Ddraig's ultimate finishing move. These flames can burn anything, and once ignited, will not extinguish until ash is all that remains. Even Gods will be burnt to ashes within the flames. It is only ineffective against Albion, Ophis and Great Red.
  • Pre Ass Kicking One Liner: In the dub, Ddraig's warning to Shalba becomes this:
    Ddraig: You made a poor decision, and now you must pay!
  • Red Baron: Known as the Welsh Dragon and the Red Dragon Emperor.
  • The Rival: Him and Albion have been going at it for centuries.
  • Tender Tears: Cried after Issei died.
  • Tempting Fate: When Issei reachs Balance Breaker with poking Rias' breast, he exasperatedly comments that he is going to cry if Issei keeps powering up this way. Guess what happened?
  • Undying Loyalty: When Euclid Lucifuge offered him a more powerful host by joining him, Ddraig quickly rejected his offer, saying that he wants to remain with Issei despite gaining the Oppai Dragon nickname and being the weakest of his past hosts, because he's a better host than all the others.
  • Vitriolic Best Buds: Him and Issei in a nutshell.

Vanishing Dragon Albion

http://static.tvtropes.org/pmwiki/pub/images/albion_anime_flashback.jpg
Voiced by: Ryota Takeuchi (Japanese) and Mark Fickert (English)

One of the two Heavenly Dragons who got sealed thanks to them fighting off the other three factions. He is the dragon who is residing with Vali in the form of the Longinus "Divine Dividing".
  • Embarrassing Nickname: Odin calls him the Butt Dragon Emperor after Vali reveals his fetish for women's butts in Volume 7.
  • Heroic B.S.O.D.: Played for Laughs seeing as his main rival is now known as the Breast Dragon Emperor, which hurts his pride. Also gets called the Butt Dragon Emperor thanks to Vali revealing his fetish.
  • In-Series Nickname: Ddraig calls him the "White guy".
  • Lonely at the Top: Was this until he met Ddraig. If he had never met him, he would have been only famous for his poison and wouldn't have developed his Divide and Reflect abilities.
  • Meaningful Name: His name is the ancient Greek name for Great Britain. The word was used also by some Romans (instead of the official Britannia) and so it's sometimes confused as a derivation of "albus", that means "white".
  • Not So Stoic: His heart disease, as how they put it, get's so bad that Albion gets hysterical and hyperventilates at the mere mention of breast.
  • Poisonous Person: Long ago, he was feared for his venom, which could reduce any organic matter. It was only ineffective on Great Red and the infinite Ophis, as well his eventual rival Ddraig, which motivated him to stop using it and train his body.
  • Power Gives You Wings: What his Sacred Gear form, Divine Dividing, looks like.
  • Red Baron: Known as the Vanishing Dragon and the White Dragon Emperor.
  • The Rival: Him and Ddraig have been going at it for centuries, to the point where the two have basically forgotten what the fight was originally about.
  • The Stoic: As Ddraig's opposite, his tone generally doesn't change all that much, no matter what ('Divide!' included) - even his This Cannot Be! reaction to Issei incorporating his power in addition to Ddraig's wasn't too different.

     Dragon Kings 

Blaze Meteor Dragon Tannin

http://static.tvtropes.org/pmwiki/pub/images/tannin___profile_pic_infobox.png
One of the former Dragon Kings from Middle-Eastern/Jewish mythology. He turned himself into a devil to get a piece of land in the underworld for his fellow dragon-kind to live in. He's also one of Issei's mentors in fighting. One of the few reborn devils to reach Ultimate Class, he is Issei's inspiration. Has been Top 10 in the Rating Game for decades.

Voiced by: Tarou Yamaguchi (Japanese) and Matt Thurston (English)

  • Badass Teacher: The Occult Club couldn't even't dent him while he used less than a thousandth of his power, and he later runs Issei through a harsh training regimen that allows him to activate his Sacred Gear at will.
  • Chess Motifs: Since he participates in the Rating Games, of course he'd be assigned to one. It is revealed in Volume 14 that he is Mephisto Pheles' Queen.
  • Fun Size: Can shrink himself down to Rassei's size whenever the situation calls for it.
  • Informed Ability: His dragon breath is equivalent to a comet crashing down on Earth. It's also used as a measuring stick for the Villain of the Week.
  • Jaw Drop: Makes an epic one when Issei asks him as to what mythology is the Breast God from.
  • The Mentor: Azazel asks him to personally train Issei.
  • Purple Is Powerful: In the anime.
  • Red Baron: Known as the Blaze Meteor Dragon.

Prison Dragon Vritra

The evil black dragon from the Asura faction of Hindu mythology who, after being vanquished by Indra, had his soul split into pieces. One of them is Saji's Sacred Gear.
  • Bystander Syndrome: If it doesn't involve him, he doesn't usually bother to get involved.
  • Red Baron: Prison Dragon.
  • Weak, but Skilled: Considered as the weakest of the five Dragon Kings, but has a wide array of skills to make up for it.

Chaos Karma Dragon Tiamat

A dragon based from the primordial water goddess of Babylonian mythology. The only female Dragon King out of the five Dragon Kings in the story. According to Ddraig, she hates him.

Gigantis Dragon Fafnir

http://static.tvtropes.org/pmwiki/pub/images/asia_and_pantsu_dragon.jpg
A dragon from the Siegfried saga of Norse Mythology and one of the five Dragon Kings in the story, he's sealed inside Azazel's artificial Sacred Gear, Down Fall Dragon Spear.
  • Batman Gambit: Despite getting beaten up by Rizevim, he still managed to curse the guy enough that he would be tormented by nightmares. This manages to make Rizevim impatient thanks to lack of sleep.
  • Big Damn Heroes: He lands the finishing blow on Rizevim at the end of the latter's battle in volume 20.
  • Dirty Old Man: Considering the other dragons aren't even perverted in nature, he stands out.
  • Kick the Son of a Bitch: He's responsible for the death of a ruthless devil who planned to revive Trihexa.
  • Nice Job Breaking It, Hero!: While he had perfectly just, sound, and good reasons to want Rizevim dead, actually carrying them out brought the world into an unprecedented level of peril.
  • Power at a Price: To even have a pact with him, he just wants a treasure. Azazel had it easy because Fafnir just wanted a rare treasure. For Asia though, it's her treasured panties.
  • Red Baron: Gigantis Dragon and Golden Dragon Monarch.
  • The Unseen: That is, until Volume 14.

Sleeping Dragon Midgardsormr

http://static.tvtropes.org/pmwiki/pub/images/midgardsormr.png
Also known as Jormungand. One of the five Dragon Kings, he's a son of Loki and is currently sleeping at the ocean near Scandinavia. He's also the laziest dragon.

Mischievous Dragon Yu-Long

The youngest of the five Dragon Kings in the story, he also accompanies the original Sun Wukong whenever the latter gets sent by Indra to somewhere. Also featured in Journey to the West.

     Dragon God and True Dragon 

Ouroboros Dragon Ophis

http://static.tvtropes.org/pmwiki/pub/images/2d0ee3b72180e1ee2c2fdaf1e8cc13ae.png

I, went under for thirty minutes.

Voiced by: Suzuko Mimori (Japanese) and Megan Shipman (English)

The strongest dragon of the dragon race and quite possibly the most powerful character in the story. He/she/it first appeared as an old man, and then changed its appearance to a young girl. Ophis' wish is to go to the dimension where Great Red resides and kick him out of there.
  • Batman Gambit: When Samael drained her powers, she actually sent out snakes that contained her power, which helped her avoid losing 75% of her powers.
  • Breast Expansion: Gets this in her older form.
  • Brutal Honesty: Uses this to describe the Occult Research Club to a staff of the department store so she can page them throughout the entire store.
  • Cheerful Child: Thanks to Ise's exceptionally good parental skills, not to mention the efforts of Akeno and Rias (both of whom she recognizes as "momma"), she begins acting like a very happy and healthy little girl, to the delight of the whole harem and Ise's own parents.
  • Cherry Tapping: When Issei wakes up in his spirit form, he sees Ophis tapping the ground. When asked, all she said was "I'm defeating Great Red here." Yes, it's a mix of funny and adorable.
  • The Comically Serious: "Did you want to become the Oppai Dragon instead of the Heavenly Dragon Ddraig?" which sends Ddraig into his Heroic B.S.O.D..
    • Hell, anytime she's on-screen, it will be a mix of both hilarious and adorable.
  • Dark Is Not Evil: At least Issei thinks so.
  • Did We Just Have Tea with Cthulhu?: Hangs out at Issei's place in Volume 11.
  • Elegant Gothic Lolita: Its current form since according to Azazel, last time Ophis appeared was in the form of an old man.
  • Foreshadowing: The dream Ise had when Ddraig made his first appearance was his marriage to Rias with his mother crying out "make sure your first child is a girl!" Ophis is currently taking on the form of a little girl, and she's the daughter of Ise and Rias (and Akeno since Ophis calls her and Rias momma), by adoption, with Ise having no prior children.
  • Happily Adopted: For all intents and purposes. She quite often acts as Ise's child, and actively calls him "Papa." She also recognizes both Rias and Akeno as "Momma" to both of their delight.
  • Has Two Mommies: She calls both Rias and Akeno "Momma."
  • Immortal Immaturity: Probably because she didn't have friends for thousands of years.
  • Implacable Man: Gets stabbed by Cao Cao using True Longinus, and she doesn't even flinch at all.
  • Intergenerational Friendship: With Issei.
  • The Load: Volume 11 is pretty much her not being able to do anything at all and is a burden to the entire group. This is actually justified, as losing some of her power made her remaining abilities unstable. When she attacked the Grim Reapers, she accidentally blew up Azazel. Also, she is effectively invincible, so she doesn't really understand the necessity of self-defense.
  • Moment Killer: Dammit Ophis! Just when Issei and Ravel were having a good time at the bath.
  • Nerf: Almost 75% of her power is drained from her, lowering her from being the second strongest known being after Great Red to being "only" twice as strong as Ddraig and Albion at their strongest levels.
  • No Biological Sex: Despite choosing to appear as female, Ophis is genderless, as revealed in her side story.
  • No-Sell: Does this to Cao Cao and the freaking True Longinus.
  • Older Alter Ego: Gains an older form in Volume 21.
  • Only Known by Their Nickname: Ophis is known by "Phis" to those outside the Hyoudou Household to avoid people realizing who she is and since Lilith is believed to be Ophis prior to her HeelFace Turn. This is seen best with Kunou who even after moving into the Hyoudou Household, still doesn't know her real identity.
  • Pointed Ears: Its current form has ears with pointed tips.
  • Puppet King: S/he is considered as the overall leader of Khaos Brigade, but the ones below her are the ones who are truly running the group.
    I just sat in a chair. I spoke my wishes. I gave snakes. That is all.
  • Rapunzel Hair: Its current form has long black hair down to her hips.
  • Red Baron: The Infinite One and the Infinite Dragon God.
  • Redemption Demotion: As soon as she finally joined Issei's group, almost all of her power was drained (most of it swallowed by Samael, and then had to create Issei's body alongside Great Red).
  • The Rival: To Great Red.
  • Stephen Ulysses Perhero: Ophis is the Greek word for "Snake", referring to her abilities
  • The Stoic: Rarely shows any sort of emotion.
  • Story-Breaker Power: Even if she got hit with the Nerf stick, she's still twice more powerful than Issei is, which is why she's not out fighting alongside him.
  • Time Abyss: Has been around since the beginning of time.
  • Voluntary Shapeshifting: S/he's capable of shifting from one form to another. As noted by Azazel, form for Ophis is just simply a decoration.
  • The Worf Effect: For someone to be the Infinite One, she sure loves to be a Distressed Damsel seeing as she got captured by both Samael and Shalba. Justified because she only has one thing in mind: kick Great Red out of the Dimensional Gap.
  • Worf Had the Flu: She is beaten to a pulp by one of the Evil Dragons of Qlippoth. This happens because said dragon was using Ise's parents as shields, and kept threataning the dragon egg she was tasked with guarding so she could not run away.

Apocalypse Dragon Great Red

http://static.tvtropes.org/pmwiki/pub/images/great_red_appearing_and_showing_issei_and_rias_the_way_out.jpg
The only one who can rival Ophis and is currently residing in the Dimensional Gap. Ophis' wish is to kick him out of there while Vali wishes he could fight him. He also represents dreams.
  • All-Powerful Bystander: Is the single strongest known being in existence, but just swims in the dimensional gap without bothering anyone, and the various gods, demons, and other factions likewise leave it alone.
  • A Taste of Power: From Issei's perspective. Issei was shocked in awe as to how powerful Great Red really is.
  • Delinquent: How Issei describes him as: a biker gang dude who hates being stared at.
  • Disproportionate Retribution: When a monster glared at him, he tells Ddraig that he'll combine with him and wipe out all the huge monsters.
  • Dynamic Entry: How he enters the underworld with Issei and Ophis at his back. While inadvertently, to the tune of Breast Dragon. Guy knows how to make an entrance.
  • Power Levels: The strongest character of the entire series. At least, until it's implied Shiva might be just as strong, if not stronger. It's also said Trihexa could possibly destroy him.
  • Red Baron: Known as the True Dragon, The True Red Dragon God Emperor, and "D x D" (Dragon of Dragons).
  • Satan: Not in-story, but he represents the Great Red Dragon that Satan became in the Book of Revelation.
  • Story-Breaker Power: It's a good thing he doesn't fight actively and chills around at the Dimensional Gap, otherwise the whole story would have been over.
  • The Rival: To Ophis.
  • Title Drop: It's known as "D x D" or Dragon of Dragons.

     Evil Dragons 

Crescent Circle Dragon: Crom Cruach

The strongest known Evil Dragon that is based on an old god in Irish Mythology. He makes his first appearance in Volume 16 in a human disguise, but is forced to reveal his dragon form in a battle against Issei and Vali.

  • Back from the Dead: Averted. Unlike the other Evil Dragons, Crom Cruach has never died and thus has not been modified by the Sephiroth Graal.
  • Break the Badass: This guy can make Grendel back down from a fight.
  • Comically Missing the Point: He seriously has no idea why Fafnir would want Asia's school swimsuit. He even thought that Fafnir was going to swim.
  • Even Evil Has Standards: He is disgusted by most of Qlippoth's actions, but what really tips the scales is how one of his fellow evil dragons tormented Ophis. He breaks out his true form on the culprit, Níðhǫggr, and contniuously beats him down, presumably force feeding him his horde of synthetic Phoenix Tears until they run out, just to prolong the suffering, and use up the supply so Qlippoth won't have access to them.
  • HeelFace Turn: He ends his partnership with the Khaos Brigade after the battle against Heaven in Volume 18.
  • Mark of the Supernatural: In his human form he has a mixture of black and blonde hair with matching black and gold eyes.
  • Meaningful Name: His title is actually the meaning of his name, and in the original myths he is suggested to be a solar deity.
  • Red Baron: Crescent Circle Dragon, Darkness Dragon and Dark Dragon of the Crescent Moon.
  • Rule of Three: With Ddraig and Albion, Crom Cruach is the third dragon from the British Isles, and they are considered the strongest of their kind (excluding Ophis and Great Red)
  • Super Toughness: He can tank Issei's Ascalon boosted Crimson Blaster attack with only minimal damage. What makes this so remarkable is that unlike Grendel he has never been modified to be immune to Dragon Slayers.
  • Took a Level in Badass: He's stated to have been training his body and mind in both the Human World and the Underworld for the time that Ddraig and Albion have been sealed. When Ddraig finally meets him again he states that he may have even attained strength to that of the Heavenly Dragons
  • Voluntary Shapeshifting:
    • He has the ability to shapeshift from his dragon form to his human form at will, and claims that his human form doesn't noticeably reduce his power compared to his dragon form.
    • He then reveals his true dragon form in Volume 20 before a frightened Níðhǫggr.
  • Weaksauce Weakness: Subverted. He originally could be critically injured by using Tathlum, the magical bullets that killed Balor, but his training makes him capable of defending against it.

Crime Force Dragon: Grendel

An evil dragon that is based on the antagonists seen from the tale of Beowulf. Like the actual story its based on, Grendel had actually been killed by Beowulf in this universe's history, and first appears in Volume 14 for a one-on-one duel against Issei.

  • Back from the Dead: A dead dragon that was resurrected by the Sephiroth Graal.
  • Blood Knight: Really loves fighting.
  • Breath Weapon: He can breathe fire.
  • Combat Sadomasochist: Akeno's got nothing on him.
  • Composite Character: In a meta-sense. He is described as having the combination of the torso of the original Grendel with limbs and wings of the dragon that Beowulf defeated after killing the giant.
  • I Lied: He told Issei that it was going to be a duel between the two of them. Then he shot out three fireballs at the other team. Issei calls him out, which he claims that he really wants to kill someone just to satisfy himself.
  • Let's Fight Like Gentlemen: Invoked and subverted. See I Lied trope above.
  • Lightning Bruiser: Even if he's a tall dragon, he moves pretty quick. Even a CCD equipped Issei is having a hard time against him.
  • Red Baron: Crime Force Dragon and Berserker Dragon of Great Sin.
  • Sealed Evil in a Can: In Volume 17, Grendel is the first Evil Dragon to suffer defeat due to the solution team DxD came up with to stop the dragon's reincarnation. Upon physical defeat, Koneko uses her powers to seal Grendel's soul in one of the detachable jewels on Issei's Sacred armor. The jewel with Grendel's soul was then given to Heaven to safeguard behind a multitude of defensive barriers.
  • Super Toughness: Even for a Dragon he's known to be able to tank insane amounts of damage, so much so that Rossweisse suspects that his defense has been further enhanced since his resurrection. He's been shown shrug off attacks from Xenovia's Ex-Durandal, an Ascalon boosted CCD Issei, and even Kiba's Demonic Emperor Gram.
  • Too Kinky to Torture: He loves pain.
  • Villainous Breakdown: Even he stops enjoying a fight when Sairaorg keeps getting back up despite his smashed body.

Insomniac Dragon: Ladon

An evil dragon based on its serpent counterpart that guarded the Golden Apples of a special Hesperides tree in Greek Mythology. He makes his first appearance in Volume 17 during the raid on Hell's Agares Territory.

  • Back from the Dead: A dead dragon that was resurrected by the Sephiroth Graal.
  • Barrier Warrior: Very much so. Ladon can force up powerful barriers to not only defend himself, but trap people in barrier bubbles. He can also multi-layer the barriers in-case the first one gets destroyed.
  • Red Baron: Insomniac Dragon.
  • Sealed Evil in a Can: In Volume 18, Ladon is the second Evil Dragon to be defeated through the sealing method that captured Grendel.
  • Super Toughness: Like the rest of the Evil Dragons, he can take a lot of punishment before getting a single scratch. Even more so considering his barrier abilities.
  • When Trees Attack: His physical body is stated to have a tree-like appearance in the form of a dragon.

Abyss Rage Dragon: Níðhǫggr

An evil dragon based on its counterpart that gnawed on the world tree of Yggdrasil in Norse Mythology. He plays a large role in Volume 20 starting from the attack on Issei's house.


  • Big Eater: True to his origins, he eats everything he can get his mouth on. In particular he really interested in tasting the Spectre Dragon egg that the [DxD] was safe-guarding.
  • Dirty Coward: Delivered a truly horrific No-Holds-Barred Beatdown on Ophis. How? He used Ise's parents as human shields so Ophis couldn't fight back, and kept threatening the egg so Ophis could not run away. When he saw Crom Crauch, who was also guarding the egg appear, he panicked and ran away.
  • Power Of Hate: The legend is that he's so full of hate and resentment that he would even resurrect himself after Ragnarok, which is supposedly the end of all things.
  • Red Baron: Abyss Rage Dragon and Extrajudicial Death Dragon.
  • Resurrective Immortality: It's not clear whether he's alive to serve Qlippoth because of the Holy Grail or just his natural ability to revive himself with his undying malice.

Diabolism Thousand Dragon: Azi Dahaka

An evil dragon from the Persian mythology and the son of Angra Mainyu, who is considered to be the archetypal evil in the Zoroastrian faith, similar to Lucifer. He first appears in Volume 17 by assisting Qlippoth during the raid at the Agares territory.

  • The Archmage: Said to have control over a thousand magics. It's not clear whether that means a thousand different spells or a thousand different styles of magic, but his power is appropriately feared by the Gremory and Sitri groups.
  • Back from the Dead: A dead dragon that was resurrected by the Longinus sacred gear, the Holy Grail.
  • Big Bad Duumvirate: With Apophis after Rizevim is killed.
  • Blood Knight: What he wants most is to fight and defeat strong foes, and he'll do any and every despicable thing he can to make it happen.
  • Came Back Strong: Invoked. Every time he's defeated and resurrects he grows stronger.
  • Lightning Bruiser: Considered by Kuroka as the strongest enemy they've fought. Given they already fought a god with his wolves that can kill a god alongside the Gremory team and Tannin included, the scale just went off the charts.
  • Lotus-Eater Machine: Traps Vali in one in volume 21.
  • Multiple Head Case: He has three heads. Each one is sentient and has its own thoughts, though they are always of the same opinion.
  • Red Baron: Diabolism Thousand Dragon and Forbidden Dragon of Demonic Origin.
  • Worthy Opponent: It sees Vali and Albion as this in volume 21.

Eclipse Dragon: Apophis

An evil dragon from the Egyptian mythology. Also known as Apep, the Light Eater and arch-enemy of Ra (or Aten).

  • Affably Evil: He has a refined and sophisticated personality and is nothing but polite during his fight with Issei. This doesn't stop him from using Trihexa to attack multiple mythologies and the human world.
  • Ambiguously Brown: Subverted. His human form has brown skin, but he comes from the Egyptian mythology. Thus, it makes sense that he would take after Egyptians.
  • Back from the Dead: A dead dragon that was resurrected by the Sephiroth Graal.
  • Big Bad Duumvirate: With Azi Dahaka after Rizevim is killed.
  • Blood Knight: He loves battles and fighting, though he's less outwardly vicious than most Evil Dragons.
  • Casting a Shadow: Uses shadow attacks that have a Touch of Death ability.
  • Even Evil Has Standards: He heavily dislikes the sort of barbarism displayed by Evil Dragons such as Grendel and Nihggr.
  • Making a Splash: Uses "Black Water" to submerge his surroundings and attack his opponents.
  • Red Baron: Eclipse Dragon and Primal Eclipse Dragon.
  • Voluntary Shapeshifting: Can transform into a handsome young man.
  • Villainous Valor: Despite doing a great many nasty things, and trashing the realms of many, many mythologies, he gives Issei a fair fight and the space the latter needed to unleash his most powerful attacks.
  • Worthy Opponent: Sees Issei as one.

Venom Blood Dragon: Yamata-no-Orochi

A Japanese evil dragon who was already killed by the god Susanoo.

  • Back from the Dead: A dead dragon that was resurrected by the Sephiroth Graal.
  • Breath Weapon: Each head can spew fire from its mouths.
  • Flat Character: Nothing is known about its personality, though this is justified by the fact its soul is split in half and never seen in its complete form.
  • Irony: Half of its soul was sealed into the Kusanagi Sword which was found in its corpse.
  • Red Baron: Venom Blood Dragon and Ethereal Devouring Mad Dragon.
  • Poisonous Person: Its fangs contain a deadly lethal poison that can even taint a victims soul.
  • Tears of Blood: Described with having tears of blood running from its eyes.

     Other Dragons 

Rassei

http://static.tvtropes.org/pmwiki/pub/images/rassei___profile_pic_infobox.png
A sprite dragon who is Asia's Familiar.

Anselmus, Cyril, Gregorios, and Simeon

Four mass-produced Evil dragons Asia made pacts with.

  • Flat Character: Nothing is known about their personalities, and their only dialogue has been some variant of "yes".
  • HeelFace Turn: Made pacts with Asia because of Fafnir's cooking show.

Bova Tannin

Tannin's third and youngest son.

  • Fun Size: Like his dad he can shrink himself to a miniature form.
  • Red Baron: He is known as "Bova the Destroyer" in the Underworld.
  • Undying Loyalty: Wants to stand by Issei's side, not as a servant but his subordinate.

http://tvtropes.org/pmwiki/pmwiki.php/Characters/HighSchoolDxDDragons