The Shaolin Monks has no realistic chance of defeating the Vikings here. They have to both get through the shield and armor of their Scandinavian counterparts. All while having no actual armor of their own, a non-lethal staff, and generally inferior weaponry, and combat experience. I just can't see this battle as anything other than lopsided.
The Blog:
https://deadliestfiction.fandom.com/wiki/User_blog:Duncan322/Shaolin_monks_VS._Viking