pokerus

They should let us know when it happens!

This is not a creepypasta, it's a valid theory. Of course, it doesn't explain Arceus creating the universe. Maybe Arceus "used" Pokérus to mutate Pokémon? Incidentally, Arceus is the only Pokémon not based on anything from the real world (Animal or otherwise).

Even clueless Professor Oak is impressed with victory baby's skills.

Everybody has pokerus but me.

I just don't understand. A few weeks ago, my Emboar got infected. He's the fourth one of my Pokémon to be infected in all of my games. But a shiny? Nope. Not even a single one.