DC Comics has a wide range of heroes and villains who populate its eccentric and creative world of the ongoing battle between good and evil. DC has always excelled in science fiction, exploring themes of cosmic horror, time travel and contact with alien life. Throughout all of this scientific ingenuity and experimentation, the use of clones replicated some of the company's greatest characters.
Source：https://www.cbr.com/dc-comics-best-clones-ranked/
