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Injustice: Ground Zero #20
Harley has her final showdown with the Joker, while Shazam confronts Superman.
Characters: Aquaman, Black Adam, Captain Marvel (DC), Cyborg, Flash (Barry Allen), Green Arrow, Hal Jordan, Harley Quinn, Hawkgirl (Saunders), Joker, Lex Luthor, Raven, Sinestro, Superman, Wonder Woman
Creative roster
Christopher Sebela (Writer)
Daniel Sampere (Penciller)
Elmer Santos (Colorist, Cover)
J. Nanjan (Colorist)
Jim Chadwick (Editor)
Juan Albarran (Inker)
Miguel Mendonça (Penciller)
Rob Levin (Editor)
Stephen Segovia (Cover)
Wes Abbott (Letterer)
Story DNA — may contain spoilers
Release timelines
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Rest of the series
Issue #1's with Shared Characters
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