u/Environmental_Buy331

Been watching a bunch of 90's movies recently, and conheads popped up. After seeing the arena scene, I thought, why not give my players an opportunity to Gnarfal the Garthok.

Can anybody think of a existing monster that would be a good standing for it?

If there isn't a good standing, what's CR should I aim for with the home brew? From the looks of it I'd guess it's huge size. What do you think?