Gilgamesh in DxD

With his Balance Breaker [Wrath of Heaven] Gilgamesh could become a literal avatar of nature, so no matter what attack he suffered Gilgamesh could regenerate himself infinitely, he was literally immortal in this form.

The only way to defeat Gilgamesh in this state would be to force him to deactivate his Balance Breaker.

For even if Gilgamesh was totally annihilated he could easily regenerate himself, as long as there was a single attribute of existing nature Gilgamesh was immortal in this form.

Sirzechs quickly prepared to advance, however before he could react immense flames emerged from the ground as they advanced against the Crimson Maou.

Expanding his aura Sirzechs annihilated the flames that emerged around him and fired at Gilgamesh again.

But before Sirzechs could react, an immense lightning bolt fell on his body, causing the Maou Crimson to spit up blood.

Even though Sirzechs' destructive aura was supposed to protect him, the intensity and power behind Gilgamesh's lightning was hitting Sirzechs hard.

Sirzechs tried again to escape to move forward, however when he looked at Gilgamesh the Crimson Maou stared in disbelief at what he saw.

Gilgamesh had his two hands outstretched and open, and in the center of them was a sphere of fire that was basically a miniature of the Sun resting in his hands.

And with a nod Gilgamesh fired the Sun at Sirzechs.

Sirzechs quickly expanded his [Power of Destruction] with the intention of annihilating the Sun.

However, this was not in Gilgamesh's plans.

"Greatest Sun"

The small sun sphere that was heading towards Sirzechs had disappeared as in its place was a huge flaming sphere that was inches away from hitting Sirzechs.

All Sirzechs could do was to widen his eyes as he saw the huge sun hit him.

A deafening roar shook the area after the attack, the flames generated by the sun charred everything in sight as the ground itself melted before the power, an entire region of miles had been hit by the effects of the attack.

Gilgamesh only calmly watched the effect of his [Sunshine] attack, although it was night and he could not use the power of this magic Gilgamesh had developed a trick.

Using the power of the [White Stallion] Authority, which allowed him to summon a stallion made of flames with the power of the sun, Gilgamesh only summoned the power of the sun and ran it through his body thus activating the [Sunshine], although the tension was so great that he could only use it for a few seconds, minutes at most.2

Gilgamesh just watched as the smoke cleared.

And the whole landscape had changed.

Now there was a crater tens of meters deep and so wide that there was nothing left standing, and in the center of it was something the Demons would never forget.

Sirzechs' bloodied body was without his transformation, but he was unconscious.

And with that the battle had been decided.

[Sirzechs Lucifer-sama is unable to fight. So the victory goes to Gilgamesh-sama]

...

...

A Few Days Later.

A few days had passed since Gilgamesh and Sirzechs battle and after the fight occurred the Crimson Maou had been taken to the infirmary to nurse his injuries.

It also went without saying that Gilgamesh's reputation within the Underworld had become even more terrible than before.

The image of the Strongest Demon in existence being humiliated by Gilgamesh when he activated his Balance Breaker still marked everyone's mind and would be remembered until the end of time.

After this Gilgamesh had returned to his friends and they talked for a while longer before deciding to return to the Human World.

Although Ajuka, Azazel and the other Maous wanted the King of Heroes to stay a while longer, Gilgamesh had no interest.

And after talking with Odin and Rossweisse one last time, Gilgamesh had said his goodbyes, not before hearing that Odin would visit him.

And so had ended Gilgamesh's vacation in the Underworld, which the King of Heroes found very tiring.

Although he admitted that the battle against Sirzechs had been very interesting.

And so everything had returned to normal for the members of the Avalon Faction.

Arthur and Xenovia went back to training with Arturia and Mordred while improving their sword skills.

Karna continued to assist Valerie in the use of her sacred flames, Merlin trained Le Fay and Asia in the use of magic while Enkidu gave Leonardo tips in the use of his Sacred Gear.

Achilles and Tiamat trained daily so that they could improve their skills, Fenrir continued to spend his days resting and Sebas took care of the house.

And Gilgamesh started to train more intensively in order to gain more control over his Balance Breaker.

As he sighed wearily after another training session, Gilgamesh entered his room while sitting on his bed.

After the fight against Sirzechs, the King of Heroes had realized that he had accomplished a secret Quest by defeating Sirzechs.

However, he had not yet had time to check his abilities.

Opening his list of quests, Gilgamesh opened the one he had just completed.

[Title: Hero vs. Maou]

-Description: Beat the Demon Lord Sirzechs Lucifer.

-Rewards: 10,000 Exp, 10,000,000 Gold, Longinuslanze Testament, Domain Expansion.

Gilgamesh's eyes widened when he saw the rewards he had earned, especially for earning that spear.

In an instant Gilgamesh accepted his rewards.

[You won "10,000 Exp"]

[You won "10,000,000 Gold"]

[You won the "Longinuslanze Testament"]]

[You have earned the "Domain Expansion" Skill]]

Receiving the rewards Gilgamesh quickly opened their description.

[Name: Longinuslanze Testament]

-Rarity: Ultra Rare.

-Description: Longinuslanze Testament is the Holy Relic that belonged to Reinhard Heydrich Dies Irae.

Supposedly the same mythical spear that pierced the womb of Christ himself, the so-called Spear of Longinus is truly as incomparable a Holy Relic as any other. A mythical weapon dating back to antiquity, forged by the first blacksmith himself, Tubalcain. A weapon of such caliber must be wielded by an equally great existence. As such, no mere mortal can hope to even put his hand on the spear, lest he invoke a divine punishment upon himself. Only the best of rulers, with the greatest mastery, the soul of a conqueror, and the dignity of a king can have the authority to command this Sacred Spear.

-Abilities: As the spear itself chose its bearer, it has the basic function of destroying the body, mind and soul of a being not recognized as its current master who tries to hold the spear. Attempting to replicate the Sacred Spear would also bring a divine curse.

Being the pinnacle of the Sacred Relic, the power that such a spear possesses is obviously incomparable to any other. Just by pointing the tip of the spear at enemies, it is capable of incinerating and vaporizing them.

A God-destroying spear that is capable of launching a wave of "Golden Light of Destruction," driving away the Creation of Creation and the Order of an Ancient Era into contact, as if a light signaled the arrival of a new World. No one can resist the power of such a powerful spear.

Moreover, the spear also possesses the characteristics of Reinhard's 3 Commanders. Moving as fast as Schreiber; which allows it to always be faster than its enemy. Killing all in one hit like Machina, and without missing the target like Eleonore.

Transcending the very concept of space and distance, crossing even dimensional boundaries. No realm is safe, for there is no place this spear cannot reach.

The spear can also endow a stigma on those who have been harmed by it, marking their souls as a sacrifice and being forced to serve the owner of this spear forever.

A Sacred Relic with the highest density of soul, eternally unchanging and totally unchangeable, the universe itself in the form of a Golden Spear. Truly an all-powerful relic.

Gilgamesh watched wide-eyed as his eyes sparkled with a childlike joy of a child who has won a new toy.

To think that he would win just such a weapon, a weapon that Gilgamesh considered at the Ea level of appeal.

The pinnacle of the Holy Relics, the Holy Spear of Destiny, it was said that he who wields this spear would then have the right to command the entire universe.

The Spear that basically refuses to be held and used by anyone other than the most charismatic man in the universe.

Deciding to summon his new spear, Gilgamesh extended his right hand.

A pure white energy appeared in Gilgamesh's hand, an aura that emanated an unparalleled amount of sacred energy illuminating the entire room.

When the glow disappeared, a Spear floated for a few moments.

Its design was incomparably beautiful, the shaft of the spear was of the coiled type made entirely of gold, its rear end was composed of an isosceles triangle type blade with a cross, this blade had two small hand guards between it and the shaft, the main part of the spear, the front end had a slightly long double-edged blade. It was red with a line made of gold in the middle, and with some gold details. Near it, where the hilt of the blade would be, was a cross, and a little further down were two hand guards.

Gilgamesh without hesitation held the spear in his right hand.

The King of Heroes' eyes widened as he felt a strange energy run through his being, but he didn't try to fight it because he knew what it was.

The Spear was testing him.

And after a few moments the light disappeared and the Spear of Destiny relaxed into Gilgamesh's hand recognizing him as its master.

Sighing Gilgamesh opened his [Gate of Babylon] while the Spear of Destiny was stored in his safe in a special place next to Ea.

Gilgamesh quickly went on to his next skill.

[Name: Domain Expansion]

-Mp Cost: Varies.

-Rarity: Super Rare

-Level: 01.

-Type: Active.

-Description: Domain Expansion is an advanced barrier technique that manifests the user's innate domain and traps its target within it by using a barrier wall to create a separate space.

A domain is a metaphysical territory that exists within the mind of its creator. Domains can only be manifested using large amounts of cursed energy. This can alter entire areas for the user's domain.

Domain Expansion is a barrier technique that builds a tangible real environment using cursed energy that reflects the user's innate domain.

Using a barrier technique to create a separate space, the user can realize their innate domain with cursed energy and trap their target within it. The domain is incorporated into the user's innate technique to complete the formation. Once inside, the user is greatly amplified and any attack deployed is a guaranteed hit. Using a hand signal or other type of signal unique to the technique is one of the requirements to activate it. Manifesting an innate mastery with cursed energy requires a lot of power, and erecting a barrier requires even more.

Gilgamesh only analyzed calmly while reading.

The [Domain Expansion] was a very powerful ability, it created a barrier that trapped the enemy, and within this barrier all the user's powers are strengthened and attacks had a 100% chance of success.

But this ability allows Gilgamesh to create his own [Domain Expansion], and the King of Heroes already knew very well how to create a very powerful one.

Gilgamesh lay on his bed as he sighed, after evaluating all the skills he had gained the King of Heroes had to admit he was happy.

Although if he had to admit it, the last few days had been very eventful.

[Warning]

The King of Heroes blinked as his normally quiet System manifested.

"What happened?" asked Gilgamesh curiously