TX - 21 / Legends TX - 21 was a masculine T - series tactical droid that served under Geonosian Archduke Poggle the Lesser in his droid foundry on Geonosis . Around 22 BBY , during the Clone Wars , the droid was stationed within the foundry during a battle on the planet of Geonosis . Outside the foundry , the Republic force was planning on destroying the foundry . TX - 21 revealed to Poggle that the foundry had ten garrisons of new battle droids ready to be deployed . The Geonosian structure also housed new Confederate super tanks , a ray shielded tank capable of withstanding enemy fire , which were released on the attacking Republic forces outside the foundry . Soon , however , Poggle and the droid were alerted by a Geonosian that intruders had breached the foundry . The droid and Poggle confronted the intruders — Jedi Padawans Barriss Offee and Ahsoka Tano — and had their forces deactivate the thermal detonators planted on the foundry ' s generator . In the ensuing combat , Tano tossed a detonator at a super tank next to TX - 21 in an attempt to destroy the tank ; TX - 21 boasted that the tank was impervious to the weapon but neglected to consider his own safety . When the detonator exploded , the tank was indeed unscathed , but TX - 21 was destroyed . Biography . A masculine T - series tactical droid , created by Baktoid Combat Automata , TX - 21 served under Geonosian Archduke Poggle the Lesser in his new droid foundry on the planet Geonosis . Around 22 BBY , during the Clone Wars , the droid was stationed within the foundry with Poggle during a battle on Geonosis . The Galactic Republic force mounted an attack on Poggle ' s new droid foundry , seeking to destroy it . TX - 21 told Poggle that the foundry was operating at fifty percent production capacity , although they had ten new garrisons of battle droids on standby . The new Confederate super tanks , a ray shielded tank capable of withstanding enemy fire , was approaching operational status as well . As the ongoing battle continued outside the foundry , TX - 21 told Geonosian fighters via hologram to commence a surprise attack on the Republic force . Moreover , the droid urged Poggle to allow him to deploy the new super tanks , which the Archduke agreed upon . Soon after the droid sent a comlink transmission to launch the super tanks , a Geonosian entered the room and alerted Poggle and TX - 21 of the intruders — Jedi Padawans Barriss Offee and Ahsoka Tano — that breached the foundry . Both Poggle and the droid were unaware that two Jedi had secretly entered the foundry to destroy the main generator . TX - 21 commented that no one could have gotten past the foundry ' s security , but , nonetheless , Poggle and the droid confronted the intruders . Accompanied by Geonosian fighters and a super tank , Poggle ordered his fighters to deactivate the Padawans ' thermal detonators , that were planted around the foundry ' s generator . TX - 21 oversaw the Geonosian fighters ' progress after Poggle left the generator room . As the Padawans struggled to fight the Confederate force , Tano pulled down her backpack and tossed a thermal detonator at the super tank next to TX - 21 . The bomb latched onto the tank ' s outer hull , prompting TX - 21 to remark about the tank ' s invulnerability to attack . However the droid became too caught up in his boasting and did not take his own self - preservation into account — the detonator exploded and blew TX - 21 into pieces . Characteristics . While serving Poggle the Lesser , TX - 21 showed his gratitude toward the Geonosian Archduke by giving information regarding the status of certain procedures the foundry was undergoing to him . He was clearly very proud of the weaponry he had built and enjoyed boasting its power to others , as when Tano tossed a detonator on a super tank , which was next to TX - 21 , the droid did not try to escape it , but instead mockingly told Tano about the tank ' s power of withstanding enemy fire . On his chest , TX - 21 had bug - like markings , reflecting his position of servitude to the Geonosians . Behind the scenes . TX - 21 first appeared as an unnamed tactical droid in the trailer of the . The droid made his debut in the " newsreel " of " Landing at Point Rain , " the fifth episode in the second season of the same television series which aired on November 4 , 2009 . The following week , the droid reappeared in " Weapons Factory , " which aired on November 13 , 2009 . While the droid was not named in the episode , he was designated TX - 21 in the episode ' s accompanying episode guide . TX - 21 also appeared on a Halloween episode of the Today show , where the entire cast dressed up as famous Star Wars characters . Weather Anchor Al Roker was invited to the studio , where he recorded a Halloween message over TX - 21 ' s lines . Additionally , TX - 21 was redesigned to have a suit and tie , and was renamed " Albot . "