With some experience in ranked battles now, it kinda doesn't matter how you setup your team, because the AI is moving, in most cases, completely idiotic, wasting mistery attacks on 100hp clones, while enemy AI plays perfectly, how a human would play.

Sometimes i have to fight the same opponent for 3 times just to get the "smart" AI and in that case, the computer plays as it should, then I devastate the opponent.

But due to the idiotic AI movements, i usually spend 2-3 losing matches till the RNG works normally.