Iron Man's Best Suit was Crucial in Taking Down a Celestial Released in 2014, this issue shows Iron Man's armor splitting off into independent nanobots, swarming together to create the suit.

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Following is a transcript of the video. Narrator: If you look at Iron Man's first suit, the Mark 1, and compare it to the hero's nanotech suit from "Avengers: Endgame," a lot has changed.