Gilgamesh was sent flying once again, turning in the air and skidding along the damaged roof of one of the few remaining skyscrapers that had not been completely destroyed during the course of the battle. He had received a deep wound on his left shoulder that would have been deeper without the mangled remains of his armor, yet the King looked unconcerned. Striding forward even as blood flowed down his arm, Gilgamesh dismissed the top portion of his armor, useless as it now was.
The Gate of Babylon opened once again, and from it the Original King pulled two things - a small vial of clear liquid and a long, golden key. Uncorking the bottle and pouring a fraction over his wound, he barely even took notice as the flesh and muscle knitted itself back together, boosted greatly by his already tremendous natural healing. The King strode to the edge of the skyscraper, and looked down on Karna once more. This time, though, his voice only the faintest trace of kingly arrogance.
"You are certainly impressive, Karna, Son of Surya. I see why you are known to many as the greatest hero in all of India."
Gilgamesh held the golden key upright and turned it. The key, not seeming to notice or care that there was no door for it to unlock, spun, glowing faintly as the various mechanical and magical parts on its handle whirred to life. Their clanking was a faint background to the voice of the King.
"Truly, you are worthy of your many titles. To fight again at such a level has brought me great enjoyment, and for this," thin, translucent red lines spread out behind Gilgamesh once again, extending out and upwards till they could be seen from miles away. "You will be given the greatest reward of all my foes."
It was almost unnatural to hear such words from the mouth of such a prideful King, for his words carried with them the ring of undeniable truth. When Gilgamesh spoke, his words became the law of the universe, and for an opponent to be acknowledged so could only mean that the King of All Heroes was granting them the honor of seeing his finest weapon.
The glowing red lines receded into a small, golden orb. Unlike the Gate of Babylon, it was a three-dimensional sphere, almost seeming like a globe with the pattern that played across its surface. It hovered above Gilgamesh's hand for a moment, before slowly floating upwards, leaving behind a golden handle. As it drew upwards more and more was revealed, until finally,
the greatest of all the King's treasures was shown to Karna, Son of the Son God. The Brahmastra paled in comparison. Merodach, Durandal, Gram - each and every Noble Phantasm that had been shown during the course of the battle was nothing before this weapon. It was an existence that could scarcely be comprehended by those its lesser, for it was the original sword, born in the primal fire and water of creation, forged from a falling star. It had no name save what Gilgamesh had given it himself, and within it was contained the power to destroy the world.
It was truly magnificent.
Gilgamesh gazed down upon Karna, and the city before him. The barrier, a work of magic almost beyond the gods themselves, could not hold this power. Nothing could. It was a wave of destruction that ripped apart the very earth over which it passed, a force that could return the world to the state of Genesis in a single swing. Even so, The Oldest King was not deterred. He would not use its full power, even against Karna, but he would show him and all who looked on the might of the King.
"
Spin, Ea, Sword of Rupture!"
The three sections of what passed for a blade began to rotate in different directions, moving slowly at first but picking up speed. As it spun the wind around it began to move as well, rotating with the blade to form a vortex of wind that shrieked across the battlefield. Long, red streamers of pure energy extended from the blade as it spun faster and faster, howling louder and louder. As it spun, it reached the maximum energy that Gilgamesh would allow it to contain in this place.
Looking down upon his opponent once more, the command of Gilgamesh was absolute. Roaring its name across the battlefield, He Who Surpasses All Other Kings released the power within his blade in a single swing.
--Star of Creation that Splits Both Heaven and Earth"ENUMA ELISH!"
Absolute Devastation.
The energy within the sword ripped through space itself, tearing a void that led to the primal nothingness, the origin of all things. The very crust of the earth was pulled apart, magma surging across the landscape as the attack ripped across it. The sky was torn asunder, a bright red that pulled itself into the void of its own accord. Shining like a star in the middle of the blackness, Ea spun as it ripped apart the world. An inhuman scream rung across the battlefield as the fabric of Gaia itself was ripped apart and pulled into the void, forest and stone alike.
As the attack surged forth, it revealed the Truth of the Primal Chaos to the world. The distorted space that lay in its path revealed the origin of all things, and shining like a star, Ea's power could not be denied. This power, this might, this attack that could destroy all of the world in but a single blow ripped a path straight to Karna, howling with winds that echoed the screams of the violated planet as it was torn asunder.
There could be no defense, no respite from this attack. Any hope that remained was in the fact that even this was not its full power. The only way for Karna to save himself would be to offer an attack of equal power, or be swallowed by the primal abyss that rose to claim him.