I was curious about fics where the focus is on some weird body modifications done to the heroes, specifically Tony focused. Maybe some baddie got ahold of him/them and did an experiment resulting in some crazy inhuman physical change that Tony and or said avenger has to get adapted to. I've seen the tag on some stories, but body mod has not been the focus, so maybe there're stories where it is. All the more power if the modification's permanent. I look mainly for Gen stories, my preference, but I'll take whichever.