My quick drawing of Alolan Arbok. It could work. After Crabrawler, I wouldn't be surprised to see another pure Fighting type that isn't humanoid.

It has a cobra box on his tail and that's what it uses to punch things. It has smaller teeth since it became more of a binding snake. Body should have been wider.

I know it's shitty but it could work. No way it's real, though but not a bad idea.