>>29048017You could just mass breed them with a ditto. Some pokemon were probably created for war, like Golurk for example. Maybe Claydol too, it seems like a kind of sentry pokemon.
>>29049399Most of them wouldn't really fight in a war though, they only very rarely hang out with trainers and tend to be smarter than normal pokemon (notice how many of them are psychic type) or are created with a very specific role in mind (Kyogre, Groudon, Rayquaza, Dialga, Palkia, ect) that basically rules them out of seriously taking part in a war.
I mean yeah Mewtwo was kind of evil but he's also a manmade pokemon who was resentful of his origins, but eventually came to terms with existence and ended up kind of a moralfag if the anime is any guide.