Suggested by Destroyer Voldemort has quite a lot of magical abilities at his disposal. Using these powers he can certainly give Mario a hard time. That said, Mario has a lot of power ups, some of which would make him too quick to be struck by any of those abilities. Voldemort has a lot of power but he’s a glass cannon in the sense that there isn’t a whole lot he can do against an opponent with Mario’s speed and he can’t endure the counter blow. Mario just needs one good hit to win. Mario wins.