Fastbreeder Fastbreeders , also known colloquially as Hex droids or simply hexes , were a model of combat droid designed and created by Lema Xandret , a Human female who fled the Sith Empire after attempting to prevent the Sith from taking her daughter , Cinzia , from her to be trained as a Sith . Xandret later cloned her daughter on the remote planet Sebaddon and named the clone Cinzia as well , before assigning the hexes to protect her at all costs . The droids were instilled with a remnant of Lema Xandret , known as an amnioid , which gave them life - like qualities . The droids were obsessed with protecting Cinzia , and took whatever measures necessary to ensure her survival — including killing Xandret , their creator . They were eventually discovered by the outer galaxy , and a hex droid nest was captured and put on auction by the Hutt Tassaa Bareesh . When several of the auctions ' attendees attempted to steal the nest , a skirmish began . Several of the hex droids emerged from the hex droid nest and joined the skirmish . To do so , they melted right through the vault door . The hexes were silver and about 2 meters high when standing on two legs . They had six appendages , and each of the appendages could be used as either legs or arms . Their bodies were hexagonal , and elongated when standing . Each appendage could be used to attack a different target at the same time . The appendages shot energy pulses of blue fire . The hexes could cross two limbs and produce a short - lived electro - mirror that was capable of turning back even a lightsaber . The sensors on the droids ' bodies absorbed blaster bolts instead of reflecting them . They would dissipate the heat , but if the attacks came too quickly to dissipate the heat , the sensors could explode . The droids were also capable of cloaking themselves . The hexes displayed remarkable adaptability during battle and immediately took the upper hand over the Sith , Jedi , and Mandalorian factions that were fighting . The Hutts ' security forces also joined the battle . Certain parts of the Hexes ' surface could reflect blaster bolts . Even blasts from a heavy blaster turret could be reflected , and the droids reflected those heavier blasts toward the walls with the intention of breaking out of the vault . Their limbs were not as protected , however , and eventually the other factions joined forces to defeat those few hex droids that emerged from the nest . The Sith and Republic were able to trace the hexes back to Sebaddon , and they each traveled there separately . Upon arrival , their fleets were attacked by the hexes , which took control of their ships and caused them to turn on one another . The Republic and Empire then allied briefly for a mission to destroy the hexes before the hexes could take over the galaxy . After all , total control of the galaxy would be the best way to protect Cinzia . During the mission , the original Cinzia — now a Sith apprentice under the name of Eldon Ax — in the company of Jedi Grand Master Satele Shan , found the clone , who was kept in a Force – free bacta tank , also with the amnioid inside of it . When the amnioid turned on Cinzia , attempting to keep her under control and prevent her from listening to reasoning from Shan . Ax destroyed the tank holding the clone to free her , but Cinzia was killed by the shock of being freed from the tank and unable to breath air . Ax then took control of the hex droids and used them to kill her Master , Darth Chratis , before allowing them to destroy themselves , as , with Cinzia ' s death , they had nothing left for which to live .