User blog comment:Crispycol/Top 10 DLC Characters/@comment-5293798-20150110061653/@comment-6604133-20150110070446

The problem with third party villains in general is that there's an unwritten rule. Only one character representing a third party franchise. I feel like with that rule in mind, the main character/protagonist makes more sense to fill the role, hence why we have Sonic, Mega Man, and Pac-Man instead of Eggman, Wily, and Blinky. I don't personally think Soul Calibur deserves a rep at all, since it's been made for Xbox and Play Station and is more often associated with those. But, if it ever does get a rep, I could see Nightmare being possible.