I've talked long about this before and the long and short of it is, that this is why the Rival role should be discontinued and indeed I have not used it. The whole point of rivals is to turn people in their own side against each other. If people decide to ignore that and work together, that means you have two people who often can guess they're on the same side, and instead of balancing against one side it turns into a massive boon to their side. It also means that people are actually ignoring victory conditions and literally playing to lose. And then you get people saying that rivals who ''played really well'' (read; ignored rules, worked with rival and didn't try to kill them thus completely gaming the system) should be allowed to win even though both were still alive. Which can't happen because you can't just set down victory conditions and then ignore them precisely because players ignored those victory conditions to gain an advantage.