I love playing pokemon teams that are based on a theme, so tell me your theme teams :D
My OU team is always my Cynthia team: Spiritomb,Roserade,Lucario,Garchomp,Gastrodon, Milotic. I've really just found it more enjoyable to work within the restrictions and still be effective. I was considering proposing a tournament in which every participant uses the team of a different game/anime/manga trainer, perhaps when torunament applications open up again.
I use theme teams because it helps narrow the Pokemon I can use effectively, as well as force me to get a bit creative with movesets and general use. That, and a lack of such limits usually results in me getting completely overwhelmed by the number of Pokemon to choose from. >_<themed teams are fine but imo if you want to be the best competitive battler you can be, you shouldn't theme just for theming. you should only theme if you think that it will give you a better chance of winning than a non-themed team. that's my competitive approach anyways.
Double-theme is hot.Mono poison raindance!
qwilfish, gengar, crobat, toxicroak, drapion, roserade
:3