DC Comics contains many great heroes, but it's no secret that Batman has ascended to flagship status for the company. The hero's mega-success is in no small part thanks to his colorful and eccentric roster of villains, some of whom are hugely successful in their own right. Each of these characters has, at various times, formed a genuine threat to Batman and the safety of Gotham, some bringing both to their knees.
Source：https://www.cbr.com/10-best-batman-villain-alliances/
