Had forgotten about cursed. Yeah you can use that too. But if the goodie isn't OEO or cursed how will you then balance that rival pair?"Have to" is too strong. It makes the set-up predictable. The goodie can then go public and say "I'm OEO, I have a rival, he's probably a baddie". Wolves are now down a man and there's a tough to hunt likely goodie to coordinate a JL. Goodie-baddie rivalries are just a bad idea in general I think. Perhaps make the goodie cursed so you end up with some pack infighting, but other than that it'll be too skewed one way or another.