Who kills Thanos?

Have you been wondering who finally brings down the notorious and powerful Thanos? It's a question that has lingered in the minds of many Marvel fans since the Avengers first clashed with the Mad Titan. The answer, however, is not as straightforward as one might think. While it is true that several heroes played a pivotal role in defeating Thanos, the one who ultimately deals the final blow may surprise you. Did it involve a fierce battle between Iron Man and Thanos? Or did a strategic move by Captain Marvel seal the deal? Read on to find out who emerges victorious in this epic battle, and what it means for the future of the Marvel Cinematic Universe.