Eobard Thawne (New Earth-Six)

The End of Heroes
When all the heroes began to die, Thawne was like all time travelers during this period was confused on what was occurring. The fact that the sudden deaths occurred were not part of the normal timeline and were in fact never mentioned in future history books, which Thawne concluded should mean his future should not exist. Thawne waited for his destruction, but to his surprise it never came. He would eventually attempt to travel to the future after the Flash died, but like so many other time travelers he discovered that he was stranded in the present much to his own displeasure.

Injustice League
Stuck in the present, Thawne tried to decide what to do with himself. He wanted to regain the power he held in his time, but had to contend with the The Secret Society of Super-Villains, who refused to make him a member of the inner circle and attempted to kill him for refusing to swear loyalty to them.

Thawne would later be approached by Lex Luthor, who offered him whatever he wanted as long as he worked with him against The Society. Thawne would ask why Luthor would offer him such a deal, which Luthor stated that he believes that those with power should use it to get whatever they want and that a man should not have to bend to another to reach those goals. Thawne would ask what happens after The Society is gone, which Luthor replies is up to him, if he wants more he has to fight for it or if he is content he can live with what he has and defend it from anyone who wants it. Thawne liking Luthor's offer agrees to help him and joins the Injustice League.