10 Best Villain Debuts in Avengers History

Arguably the best part of any superhero story is the villain, and Avengers comics are no exception. Since the team first came together, the Avengers have been met with countless challenges from increasingly powerful foes. From time-sliding conquerors and universe-ending tyrants, to earthbound organizations and shameful links to certain Avengers’ pasts. There is no shortage of villains who think they can take down Earth’s Mightiest Heroes, though there are only a few handfuls who made a lasting impact on the team upon their very first appearance.