Harley Quinn out-fought the Dark Knight in her very first appearance. Harley Quinn first appears in DC's canon in Batman: Harley Quinn #1 by Paul Dini, Yvel Guichet, Aaron Sowd, Richard Horie ...

With Batman’s first appearance in the DCU featuring as a silhouette ... due to his relationship with the fantastical. He’s the Head of the Demon, a centuries-old villain with his own army ...