Countdown: Arena is a four-issue American comic book mini-series published by DC Comics. It is written by Keith Champagne with illustrations by Scott McDaniel, and ran for four weeks in December 2007. A spin off of Countdown, the series features Monarch (Nathaniel Adam) as he organizes battles among various characters from the 52 Earths of the Multiverse. He then adds those he deems worthy to his army in preparation for a battle against the Monitors. Monarch seeks to build a powerful strike team, specifically seeking powerful alternates for Superman, Batman, Wonder Woman, Green Lantern, the Flash, Blue Beetle, Nightshade, Starman, and the Ray to compose the squad.