This was shared by the American Snallygaster Museum (yes, Blood Creek fans, this is a real museum). It’s a fantastic piece by @sherwinsketch88 of the two traditional enemies fighting. I wish I could have come up with a way to have a snallygaster battle a dwayyo in the Blood Creek books, but it never worked out.
For the record, if it was an actual brawl to the death, my money would be on the dwayyo unless it was caught completely by surprise.