I don't know what the counter to the spiral witch is, I thought that if I made the brew go over the top the spirals would fall out, but they didn't, so any spirals she creates are really permanent, and you are immediately running against the clock and need to add a lot of alure to your bews only to barely have a positive net alure at the end. And there is basically no other way to beat her, other than of course making her bew go over the top, but it's actually quite hard to do that, I have never managed it.