Check out more info on each issue here:
HERO VS HERO IN THE ULTIMATE BATTLE ROYALE!
The villainous Monarch begins the last chapter of his campaign against the Monitors, combing the entire multiverse to enlist the most powerful--or deadly--heroes and villains from throughout existence to join his army. The abducted must battle one another in Monarch's specially constructed Arena, where only the strongest of each will survive to join his battle against the Monitors.
Carefully selected from worlds throughout all 52 universes, including characters from WILDSTORM, SUPERMAN: RED SON, NEW FRONTIER, GOTHAM BY GASLIGHT, JSA: LIBERTY FILES, JUSTICE LEAGUE: THE NAIL, and TANGENT, among many others, three of each hero will walk into the Arena, and only one of each will walk away.
Welcome to THE ARENA, where Monarch's only rule is to survive at all costs.