Deathstroke and Deadpool were also fighting on the ship. This happened on a cruise ship while they battled Owlman and Ultraman, their alternate dimensional counterparts.

Superman entrusts Batman with the Kryptonite Ringīatman and Superman have discovered each other's secret identities. Enemies of both Superman and Batman have formed alliances against the two heroes over the years, most notably the Joker and Lex Luthor. Superman, along with Batman and Wonder Woman founded a team of Superheroes called the Justice League of America. Over the years, both Batman and Superman have had an on-and-off again rivalry, although both heroes have eventually developed a grudging respect for each other. He always helps out those in danger as Superman and has fought many arch enemies with his most common enemy being Lex Luthor. He grew up in Smallville and moved to Metropolis to work at the Daily Planet where his relationship with many humans grew, especially with Lois Lane his wife to be. The yellow sun of the Solar system in the Milky Way galaxy gave Clark superpowers. They adopted the baby as their own, naming him Clark Joseph Kent. He was found by Jonathan and Martha Kent of Smallville, Kansas when his vessel crashed in a field. Kal-El was sent from Krypton by his parents before their home planet and most of its inhabitants were destroyed in an apocalyptic event. History Background Main article: Superman on the Superman Wiki 6 References to Batman in Superman media.1.2.1 The Dark Knight Returns (Earth-31).

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