Iron Man: Extremis is a 2005 Marvel graphic novel written by Warren Ellis and illustrated by Adi Granov. The story introduces the Extremis virus, a bio-tech weapon that enhances the human body with nanotechnology. Tony Stark, already the armored hero Iron Man, uses the serum to upgrade himself, allowing him to merge with his armor and control it mentally, significantly boosting his abilities. This transformation makes him faster, stronger, and more connected to his suit, marking a significant evolution in his character. The storyline follows Stark as he battles the dangers of the Extremis virus, which has the potential to fall into the wrong hands. As the virus spreads, Stark faces the ethical dilemmas of using such powerful technology. Iron Man: Extremis is influential in shaping Iron Man’s character, both in the comics and in the Marvel Cinematic Universe, particularly inspiring the technology seen in Iron Man 3. The graphic novel’s sleek artwork and high-tech themes have made it a standout in the Iron Man legacy.