>>55341654> Mewtwo is legendaryThis is a retcon too by the way
Originally only the legendary birds were legendaries. There’s a NPC in gen 1 that mentions how "the legendary pokemon are all birds of prey"
Mewtwo is a man made, recent pokemon, so it doesn’t make sense for it to be considered "legendary" as there wouldn’t be any legends about it. Mew is the same, it was only recently discovered so what kind of "legends" would you expect it to be in.