<P> Needing help to defeat both Stark and Kang, the team travels back in time to recruit a teenaged Anthony Stark from an alternate timeline to assist them . The young Stark steals an Iron Man suit in order to aid the Avengers against his older self . The sight of his younger self shocks the older Stark enough for him to regain momentary control of his actions, and he sacrifices his life to stop Kang . The young Stark later builds his own suit to become the new Iron Man and remains in the present day . </P> <P> During the battle with the creature called Onslaught, the teenage Stark dies, along with many other superheroes . Franklin Richards preserves these "dead" heroes in the "Heroes Reborn" pocket universe, in which Stark is once again an adult hero; Franklin recreates the heroes in the pocket universe in the forms he is most familiar with rather than what they are at the present . The reborn adult Stark, upon returning to the normal Marvel Universe, merges with the original Stark, who had died during "The Crossing", but was resurrected by Franklin Richards . This new Anthony Stark possesses the memories of both the original and teenage Anthony Stark, and thus considers himself to be essentially both of them . With the aid of the law firm Nelson & Murdock, he regains his fortune and, with Stark Enterprises having been sold to the Fujikawa Corporation following Stark's death, sets up a new company, Stark Solutions . He returns from the pocket universe with a restored and healthy heart . After the Avengers reform, Stark demands a hearing be convened to look into his actions just prior to the Onslaught incident . Cleared of wrongdoing, he rejoins the Avengers . </P> <P> At one point, Stark's armor becomes sentient despite fail - safes to prevent its increasingly sophisticated computer systems from doing so . Initially, Stark welcomes this "living" armor for its improved tactical abilities . The armor begins to grow more aggressive, killing indiscriminately and eventually desiring to replace Stark altogether . In the final confrontation on a desert island, Stark suffers another heart attack . The armor sacrifices its own existence to save its creator's life, giving up essential components to give Stark a new, artificial heart . This new heart solves Stark's health problems, but it does not have an internal power supply, so Stark becomes once again dependent on periodic recharging . The sentient armor incident so disturbs Stark that he temporarily returns to using an unsophisticated early model version of his armor to avoid a repeat incident . He dabbles with using liquid metal circuitry known as S.K.I.N. that forms into a protective shell around his body, but eventually returns to more conventional hard metal armors . </P> <P> During this time, Stark engages in a romance with Rumiko Fujikawa, a wealthy heiress and daughter of the man who had taken over his company during the "Heroes Reborn" period . Her relationship with Stark endures many highs and lows, including infidelity with Stark's rival, Tiberius Stone, in part because the fun - loving Rumiko believes that Stark is too serious and dull . Their relationship ends with Rumiko's death at the hands of an Iron Man impostor in Iron Man (vol. 3) #87 . </P>

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