The Three Types of Superhero Origin Stories

     1) Trauma; when someone undergoes a lot of stress and develops abilities and uses them to help people. An example would be Batman. 

     2) Destiny; when someone is the "chosen one", and they realize they have abilities that they never knew about before. An example would be Harry Potter or Percy Jackson.

     3) Chance; something accidentally happens to a person and causes them to gain powers. Some example of this would be Spiderman and The Hulk.