Urban Elf: A perfect start, cutting off Gyarados.

Lin Heng transmigrated to a world where elves and reality merged.
The beginning was incredibly lucky, starting ahead of everyone else! Father is a League Elite Four member, mother is a billionaire! The Destiny System was awakened just as Lark was hatching, making everyone's fate clear at a glance!
Discovering he's the protagonist's control group, a victim of a crime that leaves him permanently disabled? And the villain is himself?! This can't be! The chosen one's ace, Gyarados? Here you go! The rival family's advancement potion, just in time for his father, the Elite Four member, to aim for the championship! Max Tyranitar, a reverted Gyarados, a shiny Metagross, a counter-attack version of Electivire, type-specific treasures, move memories… Lin Heng intercepts an opportunity in a secret realm, completely crushing the protagonist while also obtaining a series of amazing rewards, evolving a Pokémon surpassing even legendary Pokémon! Seizing supreme power! The invincible path begins! Years later, when asked about their opinion of Lin Heng, they can't help but recall the famous saying: "Below the Great Demon King, all are but ants!"