I might be just a conceded bitch, but I think that Castings should have Pandoras Box. The way it would work is that on random occasions every game the person with the highest challenge score will be offered Pandoras Box. If they reject, nothing happens. If the open Pandoras Box, one of the following will happen
1. Their stats will decrease
2. Their Stats will increase
3. They can pick 1 person or a small group of people who's stats will decrease
4. Everyones stats but the victors will slightly drop (excluding keys)