On their own, the Joker and Lex Luthor are extremely dangerous villains, but when the two swapped abilities, Luthor became even deadlier. In 1976’s The Joker #7, the two temporarily switched brains—with deadly results. The story was written by the legendary Elliot S. Maggin, with art by Irv Novick and inks by Frank McLaughlin.
In the 1970’s, the Joker was given his own solo title. Each issue saw the Joker, from his lair called the Ha-Ha-Hacienda, team up, or fight, a different DC character; the
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