The Joker easily stands as Batman's most iconic supervillain, responsible for countless atrocities against the extended Bat-family and Gotham City's turmoil. Debuting in 1940, even without notable superhuman powers, he's established himself as a world-class villain, able to believably take on the Justice League even if he'd rather focus on the Dark Knight.
Source：https://www.cbr.com/greatest-joker-stories-dc-comics/
