What most naturally follows?

How to make a superhero 
Think about accidental or " nuclear " superpowers. 
Some characters have " nuclear " powers, which means that they've come in contact with some kind of substance that has given them super-human powers. This was especially popular during the 1940s in the " golden age " of comics when nuclear technology was on the rise.
Daredevil, spiderman, hulk, flash, and dr. manhattan are good examples of these kinds of powers.