There are technical measures that can be coded fairly straightforwardly, but I doubt any overall solution would be easy, for economical reasons. It's easy to send home battle logs, but they will need humans to review, which can quickly become expensive. For every report on an actual cheater out there, there will probably be 50 from players pissed off by seemingly impossible defeats. It's mildly harder but still doable to send ongoing battle stats to server for validation, but it would increase the server load many folds, which would also become expensive.
