I have a bit of a question. I like playing in the OU tier, but I use mixed OU teams that are OU and under, preferably a team of three OU Pokemon and three more Pokemon below that tier. The thing is, I've often played in Anything Goes, mostly for the chance of a more diverse team than what I've found on the OU official meta. I have been thinking of giving the actual OU metagame another shot, but I have to know, is it exclusively OU Pokemon? If not, can Pokemon that are below the OU tier be viable against teams consisting of popular OU Pokemon?