Consisting of a physical dimensional universe the original Leo created himself on the outskirts of the pre-existing infinite space time continuum, consisting of unimaginable lengths of space and countless inhabited planets. Not all of which acted as Leonardo's private generators, as the hand full of intelligent planets he had established life on held a diversity of all those mortal that had been devoured by their worlds creator. Worshiped as an ambiguous god, Leonardo's incorporeal incarnate draws and distributes a large quantity of his power from their sheer will of worship alone. This of course not being their only function, as their 'god' was well known for causing entire populations to vanish or animal species to go extinct for his own external agenda.
The ability to reproduce allowing this continued option, as the highest technologically advanced planet had combined what they called 'Madi' or 'Magec' into a federation of mixed technology and mage craft. Still incapable of space travel, the other planets linger between what one could assume the modern era, and more spiritually aware culture's with their own unique system of governance. The population's defining no specific origin of species, so conflicts arise more over moral principles or cultural differences then species or appearance. Capable of converting those existing within his dimension into a pure form of malleable energetic used to fuel his external incarnates unique abilities. Their second death only pooling back into the ebb flow cycle of life Leo indulged within.
Within this incarnates second created dimensional universe, the laws of physic's only seem to lay down a rough outline for the much more powerful lesser gods, demi-gods, and higher ranking demonic, angelic, and more deity associated entities. Within this splayed universe not occupied by any planets yet rather realms within pockets of space that act as governing bodies that don't worship their captor as much so as try to survive the others he'd captured. War within these realms span days to eon's in their almost time less sense of progression. Should one slay another, the 'soul' or essence of the one slain simply returns to the multiconscious governing incarnate to be either consumed, manifested, or replaced back into what behaves essentially as a prison where even these powerful forces found themselves govern and trapped by what Leo was commonly referred to as the 'Overlord'.
Here reside's all those primordial, potentially omnipotent, higher dimensional entities. The created dimension here acting as an endless flat wasteland, with no evidence of vegetation, civilization, or even discernible attribute's as far as ones unique perceptions could venture. The entities lingering here finding themselves trapped within a spacial fluctuation of intense gravity induced time that strings out the existence of such powerful usually incorporeal entities across an infinite span of identical dimensional wastelands. This achieved to not freeze, but slow even their advanced abilities to a manageable scale that didn't leave a lot of perceptible time to ponder as occasionally one entity would phase into another's overlapping loop for the briefest moment to add a constant sense of urgency of attention. Attempting to puncture one or more dimensional layers futile as it is quickly over lapped in the semblance of regeneration, while rending a space larger enough to channel a different dimension is distorted by the constant changing of the outer dimension much as one could imagine splicing sections of a hallway even should the door be opened.
The equivalent would be like your cognitive perception having an infinite number of flash cards perpetually flipped in front of it as any flicker of a second you might catch attention of something outside the conscious numbing nothingness. Here, the incarnate acts as their assumed Nemesis. Some form of power like or beyond their own that had managed to get the better of them for what all immortals considered only a 'time'. Arguably, if the incarnate bothered to converse with them on occasion they would find he had obtained them through some means or another and until released were as susceptible to the incarnates omnipotent conversion of energetics into raw consumable sources for his own manipulation. These entities simply offering themselves as a much larger buffet not as easily finished off so long as some fragment of themselves continues to exist.