Ra's al Ghul is a fictional character from the DC Comics universe, primarily known as an adversary of Batman. He is the leader of the League of Assassins and is characterized by his desire to cleanse the world of corruption, often through extreme measures. His name translates to "Head of the Demon" in Arabic, reflecting his formidable nature. Ra's al Ghul possesses the ability to extend his life through the use of the Lazarus Pits, which rejuvenate him and heal his injuries. This immortality allows him to accumulate vast knowledge and skills over centuries, making him a highly intelligent and strategic villain.