Has there ever been a more vulnerable hero? First appearing in the pages of Tales of Suspense comic in March 1963, Tony Stark overcomes a near-fatal heart injury by devising a high-tech suit of armor that keeps him alive and enables him to become the Super Hero Iron Man. The Invincible Iron Man: Friends and Enemies: Young fans build their reading skills as they learn all about the people Iron Man can trust, and those he can't.