However, when he got back to the US during Iron Man and Iron Man 2, . Fixing his heart would mean he could lose the reactor, but I think the. Last month we learned that Tony Stark would be stepping down as Iron Man, and bequeathing his role to Riri Williams, a young science. In their latest look at abandoned comic book plots, CSBG looks at how Iron Man had an artificial heart until he didn't.
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