>>50512710I used to headcanon that pokemon types are just how humans classify pokemon for the sake of officiating battles, like the referee or trainer can think "okay, Graveler is a ground type so I should be okay if an electric move hits it" and that the changed types of Rotom forms in gen 5 was an "official" retyping to better reflect the actual battles Rotoms have been in. Same thing with Fairy, it was "discovered" because researchers or trainers noticed that there were inconsistencies with the established typing, so the new type was introduced in the same way a new formula is in science stuff, to better reflect and account for the data. Like, some people noticed their Gardevoir was doing fairly better than other psychic types in battles against dragons, or that Jigglypuff was unusually weak against steel attacks. This can also work with Dark and Steel, since I also used to think the pokedex is an ever-increasing list of pokemon that have been researched enough to be inducted to the official battling culture of the pokemon world, which would explain why some cross-evos and regional forms are later in the dex, it's because they took longer to pass through the verification process. And now that I'm writing this I'm thinking it could also explain the Kanto bias, since the person who started it all was professor Oak, meaning the headquarters of the official battle regulation committee would be based in Kanto.