[color=magenta]Wow, interesting find mr_pika!! That could be really interesting, especially at the Journey across America, since those are all double battles.
Here is something else to think about, it could take a little while to set up, but if you could get it off, it could be interesting. (If it actually works)
Have Ditto Transform into Shedinja. Make sure that Shedinja knows "Mimic" so that Ditto will learn it wen it transforms. Next, bring out a Starmie that knows Camouflage, and have ShedinjaDitto Mimic it, and then use it. In colosseum/stadium battles, doesn't Camo make the Pokémon into a Normal type? If so, you would have a Shedinja with some HP that could only be hit by Fighting type attacks. (This theory could also work on a normal Shedinja-if it actually works at all, but it would still only have the 1 HP.)
Meh, this would be really cool for Mew to be the transformer, since it has much better stats than Ditto. Unfortunately, nobody in America has had the chance to get Mew yet, and even if we could, they are banned at Journey Across America.