Complex sentence: The website features a list of female comic book characters that have been injured, killed, or depowered as a plot device within various superhero comic books, seeks to analyze why these plot devices are used disproportionately on female characters.
Split into simpler sentences: The website features a list of female comic book characters that had been injured, killed, or depowered as a plot device within various superhero comic books. Also, the site seeks to analyze why these plot devices are used disproportionately on female characters.