Hi, i am looking for either a Pokémon, marvel, or dc fanfic, but the mc must be OP or even invincible from the start. It could be in raws as well or mtl. eg: Marvels Strongest Villain
"Borne of Caution" on royal road. Pokemon. Extremely well written. Not exactly OP, but definitely has a golden finger. He's a big cat zoo keeper whose played all the games/watched the anime previous to being Isekai'd.
Pokemon invincible from start? Hard to find. If you don’t mind regular progress, “The Charm of Soul Pets”.