I’d want him Dracula-sized. I know it’s based off him being so damn tall in RoB/SoTN, but I think he sets a good precedent for a humanoid boss like Oni or whomever.
I feel like making them any smaller would increase the difficulty. It’d be almost as hard as taking down one of the more complicated ATs.
Take Guile for example. Try to beat him when he’s out on the field as an Assist Trophy… without items. Seriously, it can be hard to KO him without you taking a lot of damage, and that dude only has two moves. His mobility is also ridiculous. He jumps higher than some characters can recover. I bet he could camp a CPU Ganondorf for days. Having that as a boss-exclusive character like that, especially with many more moves than Guile’s 2, sounds like hell to fight against.
Or maybe I’m just gatekeeping bosses idk