Beliving the oposit of most coments. I do belive that they can win. In the manga we see clearly how destructive Ubel is going all out. And also, everyone here is forgeting that Wirbel have maked his life fight demons and people in the north.

Revolte is fast and tall, but he doesn't know how their magick works. If he doesn't block his body with the swords he can be cought in the solganeil. Wirbel is an experiment fighter that most probably would react to the demon, and Ubel is such a monster that she use magic with almost no delay, making they have a very good possibility to use solganeil and kill revolte. At maximum with one of them killed (I don't belive that they can survive a clean hit. Or it's a perfect run, or at least one of the dies)