I'm not entirely clear on this, but is this actually supposed to happen?
My understanding was that in order for him and his monsters to stomp things, they had to be at least purified, right?
But in my current game and in my previous, he constantly just wrecks things that I havent purified. Mostly he does this on the flashing tiles, but I've seen him do it on the darker tiles that you cant even move across with the player. Kinda breaks the strategy down a bit....