HenryWong122 said:
Mimikyu more like Mi-Mistake! In Anything Goes, I have a team that is 6 Imposter Dittos + Leftovers and it's surprisingly not bad. I had a team that was 5 Imposter Dittos + Leftovers and one that was Normalium-Z Transform, but it didn't work out so well. Also, in OU I have a team consisting of M-Charizard-X, Gengar, Gardevoir, Lucario, Lopunny and Greninja.
Ditto is perhaps the only Pokémon that would actually be legitimately balanced in literally any official tier, as it allows to check setup sweepers and read the moves of the opponent.
Z-Transform is a waste of time, Imposter doing it is better after all.
And your OU team seems decent, but it has too much UU (And Gardevoid, which is RU) Pokémon, meaning that you could put some tweaks and use it in UU instead.