DC Comics and Dark Horse Comics present the ultimate superhero crossover event of 2019] A strange man arrives simultaneously on Black Hammer Farm and in Metropolis and both worlds are warped as Starro attacks] Batman, Green Lantern, Flash, Wonder Woman, Superman, and more crossover with Golden Gail, Colonel Weird and the rest of the Black Hammer gang] Collects Black Hammer/Justice League: Hammer of Justice #1-5 and featuring pinup art by Yanick Paquette, Yuko Shimizu, Matteo Scalera, Andrea Sorrentino, Doc Shaner, Jill Thompson, and more]