Plasma bomb / Legends Plasma bombs were a type of explosive plasma weapons in use during multiple periods of history , especially during the final decades of the Galactic Republic and in the Galactic Civil War . The ordnance was constructed for a time in the Tython system . They were used by Bartokk assassins in an attempt to destroy the Corulag Academy . Later , the Alliance to Restore the Republic used plasma bombs on Mon Calamari Star Cruiser s ; the bombs were set off as a diversion during the Battle of the Sixela system in 1 ABY . By 7 ABY , the Scohar Xenohealth Institute had acquired a plasma bomb as a precaution against a contagion outbreak . History . Before the Republic . Plasma bombs were among the ordnance constructed on the planet Nox , in the Tython system . They were used by the dome city of Knool Tandor during the tragedy of Greenwood Station . Galactic Republic . When , due to the separate efforts of Obi - Wan Kenobi and Darth Maul , the Bartokk assassins hired by Groodo the Hutt failed to destroy the Republic Academy on Corulag using stolen Trade Federation droid starfighters , the Bartokk Queen decided to fulfill her contract with Groodo by using a subtler strategy . To this end , the Bartokks were sent to Sullust , where they stole a SoroSuub Corporation space yacht and six X10 - D draft droid s . Three of the droids had compact remote - cotrolled proton bombs installed into their torsos , each of the explosives shaped like geodesic spheres and carrying enough firepower to level a small city ( or a quadrant of a city the size of Curamelle ) . The Bartokks planned to infiltrate the bomb - equipped droids among the other draft droids into the Academy Science Service tower and then trigger the bombs , causing the destruction of the Corulag Academy . However , the Jedi Grand Master Yoda succeeded in deactivating all the draft droids and , with the help of a security droid , deactivated two of the bombs while exploding the third bomb aboard the Bartokks ' space yacht at a safe altitude in Corulag ' s atmosphere . Early Galactic Civil War . In 1 ABY , a group of Rebel Mon Calamari Star Cruiser s released their plasma bombs to create a cloud of ionized gases a kilometer across . The cloud interfered with electronic systems . Rebel pilot Luke Skywalker and the mercenary Div were pursued by a squadron of TIE / LN starfighter s through the cloud ; the Rebels maneuvered downward at Div ' s command , letting the TIEs hit an Imperial Star Destroyer hidden by the cloud , causing serious damage to the starship . Zsinj campaign . The Scohar Xenohealth Institute on the planet Storinal held a plasma bomb around 7 ABY . It the event of a contagion outbreak in the disease containment vault , the bomb would have gone off and incinerated the entire building . The Institute was infiltrated by the X - wing unit Wraith Squadron to steal a sample of Bunkurd Sewer Disorder for use in their campaign against the Warlord Zsinj . The Wraiths succeeded in stealing the sample and exfiltrated without setting off the plasma bomb . Behind the scenes . These weapons first appeared in Aaron Allston ' s 1998 novel " . " They appeared the following year , and again in 2010 with Alex Wheeler ' s " . " In 2013 , plasma bombs were featured in the pre - Republic story " " .