>Bird trio, Beast trio, Lugia + Ho-oh, Latios + Latias, Lake trio, Cresselia + Dakrai, Musketeer trio + Keldeo, Kami trio, Meloetta
Rare and powerful species that live in secluded areas protected by the government due to their status as endangered. Most of the legends and tall tales assigned to them are false.
>Mew + Mewtwo
Mew is a super-rare species believed by some to be the genetic mother of all Pokemon. One was captured in the 60s and Mewtwo was cloned. Mewtwo's whereabouts are unknown. The whole thing was revealed to the public decades later.
>Celebi, Jirachi, Manaphy + Phione, Victini, Shaymin
Are the subjects of regional folk tales and there is no evidence for their existence.
>Golem trio
Were discovered by archaeologists in the previous century. They shut down shortly after being unearthed and are currently in museums. There's more than one of each.
>Groudon, Kyogre, Rayquaza, Regigigas
Believing in them is like believing in Bigfoot or Nessie. There are no confirmed sightings.
>Deoxys
Actually happened and terrorized entire nations until he was neutralized by a joint international operation.
>Dialga, Palkia, Giratina, Arceus, Zekrom, Reshiram
They are extra-dimensional beings that guard the pillars of existence. They have never been seen. Space gods.
>Heatran
A "living fossil" that has existed since prehistory, scientists were shocked by its discovery. Super-rare.
>Kyurem
Was discovered deep inside the abyss in suspended animation and hasn't moved since. No one knows what to make of it.
>Genesect
A conspiracy theory based on some blurry footage. Its existence is unconfirmed.