Recently, I've gotten into Balanced Hackmons, and have greatly enjoyed it (despite not being able to use Huge Power Kyurem-B or Shadow Tag Dialga :P). However, I've noticed a lot of people who use teams consisting of a single species, such as a full team (I assume, since the opponent forfeited before the battle concluded) of Deoxys-A, a full team of Ditto, and a full (I assume) team of Shuckle (all of them, I have encountered, for example); they seem to be meant merely to annoy the opponent (Imposter Blissey, Contrary Rayquaza, and Dialga with Sleep Talk often handle them well, though, depending on their techniques) and/or easily "rack up" wins.
Although I have not fought many battles yet (about 12 total), I've encountered such teams rather frequently (I'd estimate that three of my four losses are due to them, if my memory serves me well, and there are more I've faced). I don't want to be rude and point out specific names, but is there anything that can (or, rather, should, if these teams are, in fact, breaking the rules) be done about such teams using pseudo or "troll" strategies?