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There have been villains that are beyond the threat level of other bad guys that either came really close to beating the Avengers or have tackled Earth’s mightiest heroes. There are some villains whose powers make them nearly unbeatable and some adversaries are a little too powerful for their own good. And some of them, despite being defeated or even killed, have come back multiple times to face Marvel’s greatest characters. These sorts of villains can be considered a little too threatening as they show off abilities that could easily one-shot a good number of the Avengers on their own. They are just too powerful to live, especially since they are never truly defeated.
7) Chthon

Chthon first appeared in Avengers #186 and is one of the Elder Gods. He created Chaos Magic, the most powerful form of magic, and is responsible for making demonic races such as werewolves and vampires. Chthon is one of those villains who keeps coming back after being defeated (and he has been, multiple times), showing that he is a constant threat to the Avengers. He can be considered to be one of the greatest magic users in the Marvel universe and is a villain that cannot be taken lightly. His power is immense, making him a huge threat,.
6) Hela

Hela is an Asgardian goddess who works as an adversary for Thor and has also caused trouble for the Avengers. Numerous Marvel events have happened over the years that show Hela’s power and how much of a threat she is. She has caused a good amount of chaos and keeps coming back after being defeated by teams such as both the X-Men and the Avengers. If there is one thing that Hela has proven, it is that she cannot be taken lightly and is a great evil that always has a shadow over the Marvel universe.
5) Mephisto

Mephisto is essentially Marvel’s devil. He has proven his power since his introduction in Silver Surfer #3 in the Silver Age of comics and has committed a large number of evil acts during his tenure as a villain. Perhaps the most notorious of these acts is taking away the marriage of Peter Parker and Mary Jane Watson, but he’s done other dark deeds as weel, including capturing the soul of Cynthia Von Doom, the mother of Doctor Doom. He has proven to be trouble for many of the Avengers and is a villain that could easily be an immense threat to the team if he chose to be. Given his power, he’s not easily defeated, which makes things even worse.












