Avengers: Celestial Quest (2001) #7
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Characters
Earth's Mightiest Heroes joined forces to take on threats that were too big for any one hero to tackle. With a roster that has included Captain America, Iron Man, Ant-Man, Hulk, Thor, Wasp and dozens more over the years, the Avengers have come to be regarded as Earth's No. 1 team.
The Mad Titan Thanos, a melancholy, brooding individual, consumed with the concept of death, sought out personal power and increased strength, endowing himself with cybernetic implants until he became more powerful than any of his brethren.
The metal monstrosity called Ultron created the synthetic humanoid known as the Vision from the remains of the original android Human Torch of the 1940s to serve as a vehicle of vengeance against the Avengers.