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For the month of September, in conjunction with Forever Evil, approximately one third of the ongoing titles at the time published multiple "Villains Month" issues, while the rest skipped publication. All titles used the "point" system, replacing the current number system, which resumed in October 2013. Titles were known by both their normal publication title, as well as their "Villains Month" title.
The list of revealed villain issues is as follows.
Action Comics #23.1 as Cyborg Superman #1
#23.2 as Zod #1
#23.3 as Lex Luthor #1
#23.4 as Metallo #1
Aquaman #23.1 as Black Manta #1
#23.2 as Ocean Master #1
Batman #23.1 as Joker #1
#23.2 as The Riddler #1
#23.3 as The Penguin #1
#23.4 as Bane #1
Batman and Robin #23.1 as Two Face #1
#23.2 as Court of Owls #1
#23.3 as Ra's al Ghul and the League of Assassins #1
#23.4 as Killer Croc #1
Batman: The Dark Knight #23.1 as Ventriloquist #1
#23.2 as Mr. Freeze #1
#23.3 as Clayface #1
#23.4 as The Joker's Daughter #1
Batman/Superman #3.1 as Doomsday #1.
Detective Comics #23.1 as Poison Ivy #1
#23.2 as Harley Quinn #1
#23.3 as The Scarecrow #1
#23.4 as Man-Bat #1
Earth 2 #15.1 as Desaad #1
#15.2 as Solomon Grundy #1
The Flash #23.1 as Grodd #1
#23.2 as Reverse-Flash #1
#23.3 as The Rogues #1
Green Arrow #23.1 as Count Vertigo #1
Green Lantern #23.1 as Relic #1
#23.2 as Mongul #1
#23.3 as Black Hand #1
#23.4 as Sinestro #1
Justice League #23.1 as Darkseid #1
#23.2 as Lobo #1
#23.3 as Dial E #1
#23.4 as Secret Society #1
Justice League of America #7.1 as Deadshot #1
#7.2 as Killer Frost #1
#7.3 as Shadow Thief #1
#7.4 as Black Adam #1
Justice League Dark #23.1 as The Creeper #1
#23.2 as Eclipso #1
Superman #23.1 as Bizarro #1,
#23.2 as Brainiac #1
#23.3 as H'el #1
#23.4 as Parasite #1
Swamp Thing #23.1 as Arcane #1.
Teen Titans #23.1 as Trigon #1
#23.2 as Deathstroke #1.
Wonder Woman #23.1 Cheetah #1
#23.2 First Born #1