What makes a superhero?

A superhero is simply someone born with unexplainable and unique powers. They then decide to use the powers they have inherited for the greater good, to help those who may not have powers ( Normal's ).

Superheroes don't necessarily have to have superpowers. Batman, Green Arrow, Robin, Nightwing.. they don't have powers. Anyways, it's not easy being a superhero. Alot of tragedy is in their life. But what makes a superhero a superhero is the fact that they're willing to die for their city.