---- Shinobi World ----
--- Third Person POV ---
Deidara and Tobi were surrounded by the allied nations, Tobi' Chakra reserves were low as he was only to teleport via Kamui. But if he uses that, he will leave behind Deidara alone, who was the one who made the name of their group in Elemental Nation.
" Don't worry about me, go away!" Deidara cooly said to Tobi who was hesitating to use the Kamui.
" What about you?" Tobi said to him, to Tobi, Deidara was a major asset if he lost then. It major blow to the Akatsuki.
" It okay, I will show them the magnificence of Art," he said to Tobi as he dashes to the army of Shinobi, he activates his secret art which is Self-Destruction Technique.
" As you wish," Tobi said as he activates his Kamui and vanished to the place.
" Hey everyone why are denying the beauty of art," Deidara said while buying a time to activate his secret art and making them lower their guard.
" Where are the base of Akatsuki!!!" the one who spoke was a muscular man with a tan skin and pale blond hair, he was Raikage who was leading the Shinobi of different villages.
" I guess I have no choice then," Deidara said as use body flickering towards the Raikage.
" Self-Destruction Technique !!!" Deidara said which is caught them off guard as they tried to escape but it's too late.
* Boooooommmm!!!!*
A large explosion could be heard as many Shinobi and Raikage died. Many incomplete body parts were left while Deidara remains was only his Eye Scope.
--- The next day ---
Tobi was appeared in the place where Explosive happens, after a few minutes of searching he found the Eye Scope which belongs to Deidara. He uses a technique from his eye's power that allowed him to revive a certain people from their death.
" Edo Tensei!" Tobi calls out the technique which is needed a fourth of his life span and a massive amount of chakra. After a few seconds later the Grim Ripper of the Edo Tensei was shown up in front of him.
" It useless." The Grim Ripper said to Tobi.
" What??" Tobi said as he saw Deidara without a soul which is stayed motionless.
" He was already Reincarnated." the Grim Ripper said as it didn't even look at the body of Deidara.
" Where he reincarnated?" Tobi asked as he got a weird answer.
" In DXD!!!" the Grim Ripper shouted while raising its arms to the sky, which earns itself a blood coughing from Tobi.
"....."
--- DXD world 100 years before Great War ---
There was a certain egg which its size was abnormally big was laying in the near of Volcano. After a three years later a crack could be seen in the surface of the egg, a moment later there was a small Dragon without much of scale could be seen. This small Dragon was none other than Deidara a crossbreed Dragon between the Fire Dragon and Earth Dragon, his mind was dormant as he was inheriting the memories from his Dragon parents while his memory in the past pending to assimilate to him.
--- A few weeks later ---
He finally assimilate the two memories, one his Dragon and the other was his past life. All of his ninjutsu technique and his Kekkei Genkai was converted in mana based instead of chakra, even his favorite art was still preserve.
" It seems that I was given a chance, then I shall show the world what is Art!" Deidara said as he started to eat the eggshells which is due to instinct.
--- 10 years later ---
There was weird scenario could be seen, because there was a medium-size Dragon was using body flickering through the forest, Deidara didn't use the Transformation Technique to become a human, because he might be a sole human in the current territory as his strength was only in Mid Class as he was not fully grown. When he was fought much stronger than him, he always uses his Explosion Release and his ability that he got from his Dragon parents 'Fire Blast' and ' Rock Blast' which he combines it into an Explosive Blast.
--- 50 years later ---
There was a fully grown Dragon was flying in the sky finding something interesting. He was already a notorious in Supernatural World for his Explosive Abilities, even the place that he behind was been always destroyed from his Explosion, and he is Branded as an Evil Dragon. He got a new motto as his progress for years.
" No Explosion No Life."
--- 37 years later ---
He got a rumors about the Great War of Biblical Faction. He was an Ultimate Class which is below only to 5 Dragon Kings and because of that, he got a moniker of being a 6th Dragon King.
" The Great War was needed my Great Art, I'm sure my art will appreciate them," he said as he flew towards the Underworld where the Great War happened.
--- Underworld ---
Deidara arrived which is many Devils, Angels and Fallen Angels was surrounding the Two Dragon which is rumored the two Dragon Emperor with a strength of Heavenly Dragon. After his entrance many people were stopped their attack to the Dragon Emperors, all of them except the two Dragons were pale and was shaking as they point their weapon to him.
" The Explosive Maniac!!!!" one of the Devil said as it tried to escape but it cannot move. The three Faction of was temporary allied themselves to slay the two Dragon Emperor who interrupted their war. These two Dragon Emperor has a problematic ability which is called Divide for Albion and Boost for Ddraig.
The Divide was the ability to halved any kind of ability and absorb it to its own to get stronger, while Boost was allowed the user to strengthen every ten seconds.
Because of that, the three Factions was allied themselves to fight them even they have large casualties. But now there was another Dragon which is notorious for not his strength but it was because of his technique for Explosion, he was able to create a copy of himself and let them Explode to his target.
--- A week later ---
The war against the three Dragons has come to an end. The three Dragon was sealed in Sacred and put many restrictions mostly to Deidara, who was troublesome enough that he erase the nine of 72 pillars of the devils while the thirty Devil clans were erased by the two Dragon Emperor. Same with the Angels and Fallen Angels was lost majority of their numbers with also the death of Biblical God and the four Satans was the reason for their retreat.
--- Many years later ---
Deidara as a Sacred Gear witness many happened via every host the he possesses. Coincidentally his host was being ahead of Terrorist, a Bomber and his last host was Osama bin Laden. He got bored as he cannot make an Explosion a day, he waits a few years he was suddenly awakened. As he opened his eyes through Sacred Gear he saw his host, to him it was just ordinary teenager with a bit of Demonic aura and his host was facing a female fallen angel was holding the two rings on her hand.
{ Hmm so you are my current host huh, welp just focus on your enemy later introduction Let Explode together!!!} his spoke to his host which is loud enough to be heard around him. He copies the ability of one of the Dragon Emperor but it was inferior compared to the latter.
{ Boost }
{ Boost }
{ Boost }
{ Boost }
He can only give his host a four times of his strength that could only par in Peak Middle Class which is enough to destroy the Fallen Angel, he gave his host the name of his basic technique.
"{ Art is an Explosion!!!}" he and his host roared to the Fallen Angel.
* Boooooommmm!!!*
--- A few minutes later ---
" Deidara isn't?" the young man said who transform from his cat form.
{ Oh you know my name } he said to the young man.
" Yeah I don't know that you are here." the young man said with a double meaning, which is Deidara was realized the meaning.
{ So you are like me huh.} he said which is the young man nodded his head.
" See you next time." the young man said as he turned around and leave the church which is also followed by his companions.
{ Interesting... um}
I invented the story about the Great War which is turned into a Dragon Subjugation which lead the four Satan and Biblical God Death and cause to have a large casualties in three races with a existence of Deidara and his Explosions