Dark World: DC/Marvel

Two of one of the most dangerous Multiverse's join creating a clusterfuck beyond what was once imaginable but on a dark planet far beyond the reach of some a human pops up, Devin no Not Knull but a Devin from a parallel world gets transmigrated there by no other than himself wanting to test a system that he had made and with nothing but his insane talent and equally insane system he walks the world's seeking power and fun, so beware world a monster has been born.

[not for the lighthearted and will get darker as the story progresses]