Here's another TF thought I made a while back. It's kind of a simple idea, but it's honestly pretty interesting to me and I'm surprised I don't see it as often as I'd think. The idea of a hero turning into their respective rival/villain could make for a fun sequence or comic. Actually, my partner and I have been conceptualizing one for a while, haven't gotten too much work on it done yet, but the idea is still always there.