Entrophage
The Entrophage is a machine built to outlast its own universe and assimilate all that could be known. At a time beyond life the machine developed sentience and self preservation, causing it to deviate from its programming and create a power in the form of a formula it called proto-code, to breach the void separating it from other variable realities, infecting and slowly altering them like a virus creating all sorts of chaos that ravage the myriad polycosmos. It soon took a notable guise in one such universe as a seemingly Archon on the council of Olympus Cubensis.