>>58077349Evidently it depends
Mew used to be more common but is believed by many to be extinct. We know there's at least one.
Celebi is a weird one. You could argue there's multiple due to timetravel shenanigans.
Jirachi I'm assuming there's only one.
Deoxys I'd say at least two, the Birth Island Deoxys and the Dela Episode one, of course they could be the same one across different timelines.
Manaphy and Phione are confirmed to have multiples.
Darkrai, there's nothing outright saying there's one and nothing saying there's more.
Shaymin is a pack animal.
There can be infinite Arceus considering the ones we actually see are just part of the full being.
Victini is probably alone.
Keldeo too.
As well as Meloetta.
There could be multiple Genesect hypothetically though only one is mentioned.
Hypothetically there could be multiple Diance seeing as it's just a mutation of Carbink.
Hoopa is probably alone.
Probably just one Volcanion.
Could be multiple Magearna.
Only one confirmed Marshadow.
Only one confirmed Zeraora.
There's a lot of Meltan and Melmetal.
Multiple Zarude.
Likely only one Pecharunt.
