>>48020190There are very few Pokemon of which only one definitively exists, including box legends.
>Ho-Oh and LugiaHave no reason for only one to exist, have had multiple solid locations in games, anime showed multiple Lugia as well
>Groudon/ Kyogre/ RayquazaLess likely to be multiple, but they also show up in scripted events at given dedicated locations in Johto. Little explicit reason is given why there could only ever have been 1 of each.
>Palkia, Dialga, GiratinaMultiples are explicitly able to exist by virtue of the SinJoh ruins event.
>Reshiram, Zekrom, Kyurem, Xerneas, Yveltal, NecrozmaIIRC we only ever see one of each in the mainlines (not counting RR which is explicitly alt universes). Necrozma from SM and USUM could be either the same or different, we don't really know, I don't think catching it in SM progresses any story.
>Solgaleo/ LunalaExplicitly a species.
>Zacian/ Zamazentaidk I didn't play the postchampionship in swsh