Over the decades, many actors have worn the cape and cowl of Batman and faced their own colorful collection of enemies. But of all the versions of the Dark Knight, Ben Affleck's Batman had the smallest and most varied collection of foes. From Joker and Harley Quinn to Deadshot, Batman has faced some unique foes that were skilled but not challenging.
Source:https://www.cbr.com/10-villains-challenge-ben-affleck-batman/