Merciless ( Aggressor - class ) The Merciless was Tyber Zann ' s personal " Aggressor " - class Star Destroyer , which served as his and the Zann Consortium ' s flagship . The basis of the " Aggressor " - class Star Destroyer , it ' s design plans were found in the ruins of the destroyed first Death Star by the Zann Consortium . After realizing how effective it could be , it was stolen from the Imperial hands and delivered to Tyber Zann . The " Merciless " was first used by Zann over Carida to great effect , prompting the creation of more " Aggressor " - class Star Destroyers . After the Empire ' s defeat over Endor , Zann , along with an accompanying fleet , moved in on Kuat , finding the Rebel fleet attacking the remaining Imperial warships . The " Merciless " fought against the crumbling Imperial forces along with the Rebels until the " Eclipse " was captured . Characteristics . The " Merciless " was a modified " Aggressor " - class Star Destroyer stolen from Imperial shipyards . It was painted black with white trims and had intimidating murals of a krayt dragon running along each side of the hull . It carried two massive , fire - linked ion and plasma cannons fixed to the front of the ship . The " Merciless " also was armed with a turbolaser battery on either side of the rear fins . The ship had a shield generator positioned on top of the bridge similar to the Imperial Star Destroyer . Tyber Zann also had a cloaking device installed to aid in stealth attacks . History . The " Merciless " was the first of its class , created by the Empire as a prototype " Aggressor " - class Star Destroyer . It was stolen by the Zann Consortium after its plans were found in the wreckage of the first Death Star . The vessel was then modified and given a customized paintjob . The " Merciless " was completed during 3 ABY . Tyber Zann was first spotted using the ship over Carida . There , he was confronted by Admiral Thrawn . Thrawn informed him of the death of Prince Xizor , who was going to buy a Sith artifact , then betrayed Zann over Carida . Thrawn then destroyed an Interceptor IV frigate , belonging to Zann , using a HVs - 2 hypervelocity gun on the planet ' s surface . Zann countered Thrawns attack by bringing in his fleet , including the " Merciless " . The two fought until Tyber ' s henchman Bossk stole the artifact . Fleeing aboard the " Hound ' s Tooth " , Bossk delivered the artifact to Thrawn onboard his flagship the " Admonitor " . Thrawn promptly fled . The rest of Thrawn ' s fleet was ordered to stay and destroy Tyber Zann ' s fleet . The Zann Consortium quickly defeated the Imperial ships . Zann then discovered the effectiveness of the " Aggressor " - class Destroyer . After the destruction of the second Death Star , the " Merciless " , along with an accompanying fleet , attacked the Imperial forces over Kuat . Their goal was to steal the unfinished " Eclipse " . The Rebel fleet , intent on destroying all Imperial ships , arrived at the same time . The two groups formed a fragile alliance and began to attack three " Cardan V " - class space stations . Meanwhile , a boarding shuttle was making its way over to the " Eclipse " . The party boarded and claimed control of the massive warship . The Zann Consortium gained the upper hand and destroyed the Rebel and Imperial forces . Behind the scenes . There is a reference in the code of this ship being called " " Peacebringer " " , which may have been the vessel ' s original name . Game data files still use " " Peacebringer " " for internal reference purposes .