It would need to be as sleek and cool enough to fit in among other superheroes, but it should be a little different somehow.
Actually, this Women's Miss Marvelous Superhero Costume would work pretty well for a hero like that! You know, just in case there's some cataclysmic event that tears at the fabric of space and time, altering the past, present, and future. The red sash belonging to a master archivist or martial artist would also be a nice touch. But who could we trust with a task like that? And we happen to have a bunch just like it, if you want to start a collection of your own adventures!. With all of these overlapping comic book characters and intersecting plotlines, there really ought to be somebody keeping track of their stories.