The Anti-Monitor is a fictional supervillain in the DC Comics universe, primarily known as an enemy of the superhero team, the Justice League. He first appeared in the 1985 comic series Crisis on Infinite Earths, where he seeks to destroy the multiverse and absorb its energy. The character is often depicted as a powerful cosmic being with the ability to manipulate reality and time. As a counterpart to the Monitor, the Anti-Monitor represents chaos and destruction. His actions lead to significant events in the DC Comics storyline, resulting in the collapse of various universes and the creation of a single, unified universe. The Anti-Monitor's influence has had lasting effects on many characters and story arcs within the DC Comics continuity.