Familiar of Red Nova The Familiar of Red Nova , also known as the Familiar of Scar - Red Nova or the Familiar of the Crimson Devil in the Japanese version , is a fire demon whose role is to be the servant of the Red Nova . This demon planned to revive the Crimson Devil from his 10 , 000 year slumber , after its defeat at the hands of the Crimson Dragon , by offering Jack Atlas as a sacrifice to become the new avatar of the Crimson Devil . Biography . The Familiar and the Red Nova implanted a dream in Greiger , where he saw Jack Atlas die , by relying on power . As a result , Greiger invited Jack Atlas to the Nazca region in the hope of overcoming this . He got Jack to Turbo Duel against Max . However , the Familiar possessed Max and changed his Deck . The Duel was halted when it became clear the Crimson Devil was at work . Angry over the result of the Duel , Jack went to a village . Here , a villager informed him that the village had been abandoned due to the works of the Crimson Devil . The Familiar then appeared in its demon form , taunting Jack into chasing it . After running around the village , Jack was brought back to the villager , who was now possessed by the Familiar and accompanied by the Crimson Devil in the form of a flame . The Familiar identified itself as the faithful servant of the Crimson Devil and asked Jack what he desired . Jack replied that it was power and the Familiar offered Jack to join the Devil ' s side , saying that they would be waiting at the shrine . It left the villager ' s body , causing him to pass out . When Jack arrived at the top of the shrine , he was transported to a hidden chamber . The Familiar told Jack that his master is locked away and has been waiting for Jack . Jack demanded the power and the Familiar offered it , under the condition that he and Jack perform the contracted ritual ; if Jack defeats the Familiar in a Duel , the Devil will grant him overwhelming power . Jack agreed . Yusei , Greiger and Max followed Jack with Greiger informing Jack how they had all been used . However the ritual Duel had already begun as planned and the Familiar revealed that if Jack loses , his body will become host to the Crimson Devil and his friends will be fed to his master in the sacrifice . The Familiar used a " Yomi " Lock strategy , which countered Jack ' s power strategy . Jack developed new tactics to fight back . When both players Life Points were low , the chamber began to fall apart and the Crimson Devil started to appear . However Jack used " Blazing Soul " to absorb Red Nova ' s power and create the card , " Red Nova Dragon " , which he used to defeat the Familiar . The statue of Red Nova then fell over crushing the Familiar . The Familiar of Red - Nova may be a reference to the Sons of Muspellheimr in Norse mythology who are fire demons . The Familiar of Red - Nova is also a fire demon . Abilities . The Familiar ' s most used power is his ability to possess people . It has been used on Greiger , Max and a villager in the series . Another ability is to fire energy blasts from his hand , which he used to destroy the stairs and the exit to the Earthbound Immortal Shrine and to knock Yusei off his feet . He was also able to destroy the floor surrounding Jack , trapping him in the center of the room , unable to reach anyone outside of the duel . Deck . The Familiar uses a " Yomi " Deck . It uses cards that quickly inflict effect damage while protecting himself with various stall effect s . It consists of low Level Fiend - Type monsters that can be quickly destroyed to inflict damage . Instead of cards , the Familiar uses tablets , similar to the tablets used in Ancient Egypt , which had monster Ka sealed inside them . The Familiar took control of Max and Greiger to lure Jack Atlas into a Duel , where he used this Deck . It was given to Max by the Familiar whilst under its control . The Deck is centered around putting multiple monsters with the same name in the Graveyard to benefit from cards such as " Smoke Mirror " and " Ancestor Bird " .