By JK Schmidt Marvel fans saw how powerful Thanos was in Avengers: Infinity War, especially after he gained all of the Infinity Stones.Earth's Mightiest Heroes will have another chance to take down the Mad Titan in Avengers: Endgame, but what if Thanos isn't the biggest threat to the universe? This new fan theory suggests another big bad might ... ...read more

Via:: Comicbook.com