creating the villains he fights). Often superheroes have an  archenemy  who is more troubling than the others. Often a nemesis is a superhero's doppelganger or  foil  (e.g.,  Sabretooth  embraces his savage instincts while  Wolverine  tries to control his;  Batman  is dark, quiet, and grim, while  the Joker  is colorful, loquacious, and