Anti-Monitor
Anti-Monitor is among the most iconic villains in the DC universe. The character was created by Marv Wolfman, George Pere, and Jerry Ordway and debuted in Crisis on Infinite Earths #2 in 1985. Anti-Monitor is a cosmic entity that seeks to destroy all positive matter in the multiverse and reign over the antimatter universe. The Anti-Monitor possesses immense strength and the ability to manipulate energy and reality and is considered one of the most formidable threats in the DC universe. He has appeared in various DC Comics storylines and media adaptations, including the Arrowverse television shows.