What are some key elements to consider when developing a compelling protagonist for a new superhero comic?

A compelling protagonist needs a strong motivation (a clear 'why' they do what they do), relatable flaws, a unique power set that ties into their personality or backstory, and a defined arc of growth throughout the comic. Avoid making them perfect; vulnerability and internal conflicts are crucial for audience connection. Consider their supporting cast and how they challenge or aid the hero's development.