By Alex Batts — A familiar foe recently joined Batman’s rogues gallery in the comics: The Arkham Knight. This character was first introduced to the broader Batman mythos in the final chapter of Rocksteady Studios’ Batman: Arkham video game franchise via the 2015 release of Batman: Arkham Knight. Though many fans immediately deduced the characters not-so-secret identity well before the game’s official release, the character design and Arkham Knight mantle was excellent, making it something worth introducing to the main Batman continuity….