Yeah, it's kind of hard for more conventional opponents to go up against the Mask and other guys listed here, as their Toonforce power allows them to defy the laws of reality. And if you can basically take a dump on things like physics, or even logic (like Scott Pilgrim being able to punch people so hard that they turn into game tokens, or Sing running so fast that his legs make Road Runner wheels, or Zohan being able to remotely control his severed hand), and your opponent can't, you end up with a really big advantage. So, you need someone with equally ridiculous powers to counteract them.