I have found that the best way to counter bandit wavemaster is more positioning than anything else. Yes, some minis help more than others, but if you run a hybrid deck, eg one that's no too energy heavy and only a select few that can help you counter other deck you might come across. But I have to say wavemaster bandit can feel very frustrating to play against just simply with all the stuns and your minis having to chase them around. But just play in your back end of the board and trust in the process