The Iron Fist functioned as a Victory-class Star Destroyer within the Imperial Starfleet throughout the duration of the Galactic Civil War.
Captain Zsinj, while in command, innovated a unique maneuver to repel starfighter assaults. This strategy involved navigating the vessel through asteroid fields. As fighters approached to engage, the ship would utilize its turbolasers to target asteroids in close proximity to the fighters, detonating them and thereby inflicting damage or destruction upon the adjacent enemy craft.
Following Zsinj's elevation to the rank of Admiral, he was granted command of a new flagship, the Executor-class Star Dreadnought Brawl. He subsequently rechristened this vessel as Iron Fist, a namesake taken from his previous command. Subsequently, the Victory-class Iron Fist was reassigned to Captain Ferob, serving under the authority of Grand Admiral Thrawn within the Unknown Regions. During this period, it participated in Thrawn's operation to bring UR41-284 under control.