Joker ( Final Fantasy XI ) Joker is a non - playable Cardian character in " Final Fantasy XI " . He is an artificial soldier discovered and recruited by the Star Onion Brigade , a group of Windurstian children . Story . While fighting for truth , justice , and the onion way , the vigilant members of the Star Onion Brigade find themselves at odds with Nanaa Mihgo , a professional criminal . After spotting her snooping around Karaha - Baruha ' s abandoned manor , they ambush her with stink bombs and cause her to drop a Mana Orb , a device used to power Cardians . Emboldened by this victory , they plan to catch Mihgo inside the house itself . Their triumph sours , however , when Nanaa turns the tables by locking the Star Onions in Karaha - Baruha ' s manor . Fearful of ghosts in the dusty mansion , they fumble about in the dark . In the process they stumble across the dormant body of Joker , who absorbs the Mana Orb they carry and rises to meet them . With Joker ' s assistance the Onions are able to go outside . They ask Joker if the manor was his home and in the irregular cadence of a Cardian he replies that it is not . His memory is not functioning well so the Onions invite him to come with them . The wealthy Tarutaru trader from whom Nanaa Mihgo had stolen the Mana Orb soon learns of the Brigade ' s involvement and demands that the Star Onions return his property . When they point out that the Mana Orb has been absorbed by Joker the merchant calls for the Cardian to be dismantled . Joker wanders off before his orb can be taken and the Onions send a helpful adventurer to look for him . Joker faces the Onions ' assistant outside Karaha - Baruha ' s manor . He begins to speak without artificial tones and asserts that although Cardians must be willing to die for their masters he cannot allow himself to be disassembled . He implores the adventurer to help him search Toraimarai Canal for the reason he is compelled to survive . They subsequently discover an inactive Cardian control card labeled as Joker ' s . Seeing this , Joker loses all traces of his mechanical personality and remembers his true identity and purpose . He had been created by Karaha - Baruha during the Crystal War using a portion of the mage ' s own spirit . The magics animating a Cardian unravel when its creator dies , but Karaha - Baruha knew that forcibly reactivating a dead automaton could also draw its maker back from death . Anticipating that he would be lost in the Battle of Windurst , the summoner had prepared Joker to give himself a second chance to set things right . With the remnants of Karaha - Baruha awakened inside him , Joker bids farewell to the Star Onion Brigade and assumes leadership of the rogue Cardians in the Horutoto Ruins . From there he manipulates the course of events in Windurst , indirectly helping Ajido - Marujido escape from prison and detaining the Star Sibyl at the Full Moon Fountain . With this valuable hostage , he is able to convince the Federation ' s brightest minds to assist him in the completion of Karaha - Baruha ' s work . Joker relies on Ajido - Marujido to lure to the Fountain a creature called the bearer of darkness , which contains the rest of Karaha - Baruha ' s spirit as well as the lost energies of Fenrir . When the shadowy entity arrives Joker sacrifices himself and all his Cardian followers to combine with the bearer into a single source of light . The Star Sibyl then uses this energy to revitalize the Full Moon Fountain and restore Fenrir to its place as Windurst ' s guardian . Karaha - Baruha ' s grand design to defend his nation is thereby completed . Afterward Joker ' s powerless Mana Orb is brought to the Star Onion Brigade , who mourn the Cardian ' s loss . He had promised to return to them and they cannot accept that he is truly gone . His spirit appears before them , however , and resolves to watch over them and the city . The Star Onions , in turn , restate their own commitment to vigilance . Other appearances . " Final Fantasy Trading Card Game " . Joker appears in " Trading Card Game " as part of the " Earth " set .