Archdjinni of the Rings: Hoopa (Warhammer 40k/Pokemon)

A poor sod got violently sucked in an ultra-dimensional wound in reality, leading him to his kidnappers, hyper-intelligent, biologically immortal space-faring magical lizard-frogmen things to be turned into a living tool, weapon, and mode of transport all three in one against his will… Though his new form was oddly akin to the true form of the Pokémon number 720, Hoopa, in both general appearance and power, let's see how a human-turned-monster of mass destruction fares in this universe of grim darkness and how the universe and its players react to him as he now was an integral part of the Great Game, for the better or the worse. Everything goes to their respective owner. It's crossposted on Webnovel, Space Battle, Scribble Hub, and Royal Road.