A small addition to last week's post on this AU.
1. They both have a small talented rival who is very similar to themselves when they were younger.
2. They compete when they meet.
3. The competitor turns out to be stronger/better/successful/elementally younger.
4. Both of them are killed by a mirror at the end.
5. The competitor wins and takes the place of the defeated.
Stories repeat themselves. One replaces the place of another and continues the circle until someone more worthy takes his place.