[quote=LeeRoy]
Immunity to:Cancer
Projectiles
Radiation
Blunt Force Trauma
Age
Starvation
Acid
Electricity (As diamonds are insulators.)
Resistant to:
Heat
Cold
Suffocation
Dehydration
[/quote]
Indeed, that is a high quality superpower to have. It might not even belong here, but i still want to bring to consideration a decrease in quantity, making this ability an implant (symbiotic fauna?) instead of the body in whole. Of course, i'll create some other character if needed, but this concept still exites me.

A strand or two of carbon muscle for each bunch of human, diamond plating only on the most the vulnerable spots, acid resistance apllied only to the digestive system and acid producing/transportation organs (burst one of those, and the guy dies a pretty nasty death) and ect.

As for cancer, it's probably going to be non-stop chemotherapy. I'll read a bit about other methods of cancer treatment too, so i can flesh out this aspect later on.