 The second segment of this season was "Challenge of the Super Friends", a 16-episode series that came the closest to the comic books.Not only did "Challenge" have the Justice League of America, it was the first official Super Friends series to feature DC supervillains from the comics, and this series had 13 of them together as a group called the Legion of Doom.It included Superman foes like Lex Luthor, Brainiac, the Toyman, and Bizarro, and Batman foes like the Riddler and the Scarecrow.