In an ancient time longer than all civilizations on Earth could remember, far away from the petty, squabbling civilization that is human nature in its essences, stood the one and only sovereign Unovian Empire.



The great Empire of nanite-beings spanned across galaxies and ruled the realm in dominion as they answered to the Dark Forest herself; in which they strived to conquer and manipulate the reality to their wills. No stars shall be out of their reach, no cost of the other species too high to sate the golden gods' whims and absolutely no extermination of other races is more discernable than grinding a cockroach against the floorboard. Only the Empire alone is destined to rule the universe in sovereign and solidarity with it's golden spires and finest of cultures from hundreds of thousands years of knowledges.

With this in mind, the Empire razed countless species to the ground and scrubbed their history from the facets of reality. Never before living beings have witnessed the height of a carbon-transcended civilization but merely moments before their death at the hands of them.

Realizing this, Intergalactic authorities that were, all banded together in solidarity as they raised trillions-strong army to defeat the great and noble Empire once and for all, hoping to put an end to the expansionism that only paved with death of species. Artificial minds the size of stars joined the coalition in a hope of defeating the once-great Empire.



Alas, they instead was the 'once-great' themselves before the Empire, as they joined the history.

Countless quadrillions were exterminated or enslaved, each races of few kept as a trophy to the Empire's vanity, their silicon allies abandoned the Federation to their own fate or outright destroyed themselves to avoid Empire's grasp. With the extermination became a chore than entertainment, the Empire sought to raise the moods of their nanite-kin.



***Welcome to Aresia d' Colliana. In these places, we will fight these low cretins to the death of heat!***

Behold! Our golden and noble warriors against a squad of elite squadron of T'sanivire Collectiv! How long will these filthy tribals cladded in powered armors and firearms of lights stand?

Or how about a fighter taking on the giant, colossal animals that are the Apex herbivores of R'alondina that which we saved them from the planetwide scorching during the latest cleanup chore?  
  
Worry not, the last of the show is our lone golden warrior taking on 200,000 civilians of Tau Teva. Let's see how long they last! Would gentle ladies and men think they would beg for lives first and foremost? How curious!



The arena saw the eventual slaughter of trillion souls, with plenty of unfortunate ones were reatomized into existence and robbed of death for further entertainment in different kinds.

Eventually, at last, the fire of resistance was permanently extinguished from the realspace forever. The arenas thus were repurposed to draw threats from beyond the realspace and other realities to join the fight and sate their boredom; it was also the place where the academy scientists of the Empire could study the fluctuation in spacetime and all the new species behavior brought in from other realities and timelines for slaughter.



Despite the seemingly wanton brutality of the Empire - The graceful gods indeed do yield to those worthy of their Angstromspan of attention. To those intelligent lives who manage to beat the immortal human-machine Empire, be it simply mere slaves or experienced soldiers, a chivalrous knight or an ASI capable of glassing entire planet with its antimatter warheads, should they unanimously gained respect from the crowds, could be bestowed - A wish of their demand - Bar the obvious wish of annihilating the Empire by some cunning competitors.  
  
Of course, just managing to put a Unovian into dire disadvantage is already enough to humble the warrior and entertain the crowds. But would your 'prowess' be enough to warrant ***unanimous agreement*** from them? Let alone out-thinking a machine-warrior processing things beyond speed of light?



Some wished humbly to be sent back. Some wished for vast fortunes the size of endless sea. Some wished for a residency in this glittering society of all achievements and die of old age. Some wished the death of foe. Resurrecting a dead person. An immortality. 

Or!

Some wished to be come like them, the Unovians - Timeless, undying, flawless, beautiful, perfect - Master of all crafts in known time and space. The creators of the most perfect society in existence. The handler of nanite to destroy worlds and create lives ground-up from quarks. To become a God, like them.



Up to the countable days of Earth species, less than ten victors reaped the rewards of Aresia d' Colliana. Those who stood toe-to-toe against gods and survived.



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*In A.D. 2237, United Nations of Earth have repeatedly dismissed peculiar reports from multiple countries who 'witnessed squads of their soldiers disappeared out of thin air, right in front of cameras' - Alongside their own patrol squads in multiple nations going missing as well.*

Godlike empire pulled you across space and timelines into colosseum just to kill you for amusement.