I like the notion of a man-made robot from just 500 years ago having the classification "mythical".
I wonder if they'll go into detail of how exactly it's a Pokémon. Like, what is a Pokémon anyway? Deep Monday morning thoughts.
Mythical is just the official classification for event pokemon.
We've had man-made pokemon since the first game.
Artificial Pokemon:
Gen 1:
Porygon: computer program.
Voltorb/Electrode: some pokedex entries say they first appeared at a pokeball plant.
Grimer/Muk: mutated toxic waste.
Mewtwo: bioengineered from Mew's DNA.
Gen 2:
Porygon 2: Porygon gets a firmware upgrade.
Gen 3:
Baltoy/Claydol: Clay figures created by humans that came to life through exposure to mystic rays.
Castform: Created by the weather institute to help predict weather.
Banette: A child's doll that came to life.
Gen 4:
PorygonZ: Another upgrade causes an error.
Gen 5:
Trubbish/Garbador: Garbage mixed with toxic waste and came to life.
Golett/Golurk: golems created by scientists over 1000 years ago.
Genesect: Instead of just reviving a fossil pokemon why not turn it into a cyborg?
Gen ?:
Magearna: mechanical pokemon created 500 years ago.
And then you have pokemon like Rotom and the Aegislash line who are ghosts that possess and use man-made objects as their bodies.
And the weirdest is probably Yamask and Cofagrigus. They're literally the ghosts of dead humans.