Creysis was a commander in the Ebruchi pirate organization. Ambitious, he sought to move up the command chain. One such opportunity presented itself when the Imperial Star Destroyer Admonitor arrived in the system which he patrolled. Passing himself off as a warlord king, Creysis boarded the ship, which its commander, Grand Admiral Thrawn, passed off as a colony ship. In this game of mutual deception, Thrawn had the upper hand, divining Creysis's position from his actions while scrupulously maintaining the illusion of weakness.