*Narrative Version*
The Super-Villain is born.
Like a Villain made large, it is an insect with too many legs, eyes, and mouths; its shell is impossibly blacker than black, standing out even in utter darkness for having a deeper contrast than even a void without any light. This is not its true form- for that is beyond description, so horrifying that to see it is to forget that this creature even exists, the memory of terror so tremendous that one's own subconscious erases all thoughts of it. To look into its soulless eyes is to catch a glimpse of enlightenment into cosmic nihilism; to feel yourself be tortured as a spiritual entity and reduced to stupid atoms, nothing more than stupid meat, obeying stupid instincts.
If one wishes to even begin comprehend this Enemy to All Things, they must be of at least immortal stature. If one wishes for their mind to survive contact, they must abandon reason and reject all that it represents, to refuse to even imagine what it truly is as anything other than banal, uncomplicated evil, to see no farther than the bug that it pretends to be; for to investigate farther is to be subject to a mental poison that destroys even the soul.
Within the body of the Super-Villain are no organs but one- the Demon Seed. From within pours forth incredible, unholy vitality, which graces the Super-Villain with life beyond life- sufficient to endure all mundane sufferings of age, hunger, disease, and injury without pause, so long as it resides within its body. This seed gives it the Right of Control, dominion over all that is born of its flesh- much needed, as it is a hive of Villains, their ordinal spawning ground, and a wellspring of Wretched Scum besides; an ecology to itself, self-contained.
It is intelligent, super-intelligent. Its mind developed enough to understand not just survival, the tactical acumen of its inferiors, but finer things as Pride, Lust, Wrath, Sloth, Envy, Greed, and Gluttony. Within it is instilled a command even it cannot recognize- the need to cultivate more Demon Seeds. To do this, it will rationalize, above all, through Ambition; desires which can only be fulfilled by collecting more Demons Seeds, from other places full of life- it is woe to over-predate the pastures it roams.
The Super-Villain drinks deeply of the mutagen that remains, draining the deep sea of it all. For two hundred gallons, it satisfies its thirst, draws it into its Demon's Seed, and refines it down into a single drop of the Ambrosia of Sin. With this sweetest nectar, it may call upon its own power, or grace another with its foul blessing.
It is only by the Ambrosia of Sin as fuel that it may assume its true form, the collective power of the lingering vestiges from so many monsters reawakened to torment the world beyond death. To give this boon to another is unlike the Super-Villain, but they may come to find that it is their own preference to make other creatures into their playthings rather than food; their love as awful as their hatred, should one receive it, they would become the Super-Villain's slave until death, capable of seeing the Super-Villain's true form and not forgetting it or rejecting it, of significant strength as the Monsters from which they inherit their perfected nature, but unable to deny the Super-Villain at any point.
*Simple Mechanical Explanation: The Super-Villain is created. At first, it is alone, and knows nothing, but it is a genius and even capable of processing emotions, however its emotions are twisted in the extreme. It only has one vital organ, which provides for all base needs; it is immortal excepting through having this organ extracted. It wants, instinctively, to create more of its kind, which it believes is because it has an ambition that can only be brought to fruition through collecting multiple Demon Seeds; this is only possible by limiting the capacity of its native ecology from completely destroying the global biosphere, as it needs other functioning ecosystems to parasitize with Wretched Scum to create more Super-Villains. In order to access its full power, when it transforms into its true form and taps into the abilities of all the different residual wills and biological traits inside of it, it needs to have Ambrosia of Sin as a power source, which it converts 1 drop of from drinking a cubic meter of mutagen. It can give other creatures Ambrosia of Sin to elevate them to high monster level without any of the flaws, which makes those creatures into its servants.*