Yu - Gi - Oh ! ZEXAL - Rank 002 " A Mysterious Life - Form ? ! " is the second chapter of the " Yu - Gi - Oh ! ZEXAL " manga . This chapter was first printed in the 3 / 2011 issue of " V Jump " , released on January 21 , 2011 . It was later reprinted in the volume 1 of " Yu - Gi - Oh ! ZEXAL " . Summary . As Yuma arrives to the marked place , Shark congratulates him on not chickening out , but says that running away would at least have saved his Deck . Yuma replies saying that he ' d rather never more Duel than running away from a guy like Shark . Both then set their Duel Gazer s and D - Pad s , beginning the Duel , as Kotori and Tetsuo watch . Yuma begins his turn saying that " he will jet " , and Normal Summon s " Zubaba Knight " in Attack Position . He says that as one can ' t attack on the first turn , he ' d then end his turn . As Shark draws , he wonders if that 1600 ATK is Yuma ' s strongest card , and Summons " Big Jaws " in Attack Position . Yuma is surprised at Shark ' s monster being stronger than " Zubaba Knight " , as Shark declares that thanks to that , the monster with lowest ATK would be destroy ed - and that that was not all ; the player would also receive the difference as damage . He also says weak monsters like " Zubaba Knight " should be played in Defense Mode , and that even if Yuma had played a better card , that wouldn ' t have helped him , as he activate s " Aqua Jet " , increasing the ATK of " Big Jaws " even more , and attacking " Zubaba Knight " . The latter is destroyed , as Yuma ' s Life Points go down to 2800 . Shark Set s a card and ends his turn . Yuma draws , as he complains that all he ' s done so far was losing 1200 Life Points . He then Summons " Gagaga Magician " in Attack Position . Shark says that summoning a 1500 - ATK in Attack Position was a blunder , but Yuma says it was not , as he equip s " Gagaga Magician " with " Wonder Wand " , boosting his ATK to 2000 . Yuma declares that if his monster ' s ATK is low , he can still power it up with Spells too , as Shark says Yuma is not as dumb as he looks . Kotori celebrates Yuma ' s monster being stronger than Shark ' s , as Yuma attacks , with Shark saying that Yuma is still a terrible Duelist though , having disregarding his face - down card . Shark activates " Poseidon Wind " , forcing " Gagaga Magician " back , and at the same time inflicting 800 points of damage to Yuma ' s Life Points . Kotori is worried about Yuma having lost half of his Life Points in just 3 turns . Yuma stands up and notes that he has a Trap Card in his hand as well . He says that he is playing a Trap Card face - down to end his turn . Shark is surprised , and Tetsuo tells Yuma that one can play both Spells or Trap Cards face - down , so he shouldn ' t tell his opponent which one he ' s playing . Shark says that Yuma ' s completely idiot , and asks if he really intends to be the Duel Champion , as he starts his turn . He says he ' s done playing around , and Summons " Skull Kraken " in Attack Position . Seeing its 600 ATK , Yuma deduces that means Shark doesn ' t have a monster stronger than " Gagaga Magician " . However , Shark says he wouldn ' t bet on that , as he activates the effect of " Skull Kraken " to destroy " Wander Wand " , resetting the ATK of " Gagaga Magician " to 1500 . Yuma ' s shocked on Shark ' s using monster effects now , as he slowly loses hope , saying that it ' s no good , that he can ' t " jet " at all , as he tightly holds his pendant . Shark asks Yuma if he ' s still wearing " that piece of junk " , and says that that ' s why he can ' t win there - because he was clinging to that " trinket " . He also claims that one his own , Yuma is powerless , and can ' t do a thing . Trembling , Yuma tells himself that no matter how much he messed up or how many people laughed , he managed to keep " jetting " because he believed in himself . At that moment , the pendant lights up , and the piece which was broken restores itself . He then finds himself in front of the door from his dreams , which calls him to open it , in order to gain a new strength , at the cost of losing what he holds most important . Yuma notes the lock in the gate , and after a brief hesitation , rushes towards it , saying that he wasn ' t done " jetting " yet , as he opens the lock with his pendant . As the chains of the door tear and it opens , a huge light appears , and numerous cards get out of the door . Yuma then finds himself back at the Duel , and wonders if it was a dream , when he notes Shark surrounded by a dark aura , claiming that he feels powerful . A voice then tells Shark to call it - to call the " Number " . Shark then screams and Overlays " Skull Kraken " and " Big Jaws " , both Level 3 , calling up " " to the field . Tetsuo is surprised that that ' s not the monster Shark used against him , as Shark , now totally possessed by the " Number " , activates it ' s effect - he detach es one Xyz Material from " Number 17 : Leviathan Dragon " - " Skull Kraken " - in order to power up its ATK by 500 , to 2500 . He attacks and destroys " Gagaga Magician " , reducing Yuma ' s Life Points to 1000 , as Kotori yells his name . Laughing , Shark claims that the Duel is over , and that he would finish it with the next attack . As Yuma falls due to the attack of the " Number " , he wonders if he ' s really not good enough for that , but at that time , a mysterious entity stands next to Yuma telling him to stand up and win . Featured Duel : Yuma Tsukumo vs . Ryoga " Shark " Kamishiro . Turn 1 : Yuma Yuma Normal Summon s " Zubaba Knight " ( 1600 / 900 ) in Attack Position . Turn 2 : Shark Shark Normal Summons " Big Jaws " ( 1800 / 300 ) in Attack Position and activate s " Aqua Jet " , increasing the ATK of all WATER monster s on the field by 1000 until the End Phase ( " Big Jaws " : ATK 1800 → 2800 ) . " Big Jaws " attack s and destroy s " Zubaba Knight " ( Yuma 4000 → 2800 ) . Shark Set s a card . Turn 3 : Yuma Yuma Normal Summons " Gagaga Magician " ( 1500 / 1000 ) and equip s it with " Wonder Wand " , increasing its ATK by 500 ( 1500 → 2000 ) . " Gagaga Magician " attacks " Big Jaws " , but Shark activates his face - down " Poseidon Wind " , negating the attack and inflicting 800 damage to Yuma for each Fish , Sea Serpent and Aqua - Type monster Shark control s . ( Yuma 2800 → 2000 ) Yuma Sets a card . Turn 4 : Shark Shark Normal Summons " Skull Kraken " ( 600 / 1600 ) in Attack Position . Its effect activates , destroying " Wonder Wand " . Shark overlay s " Big Jaws " and " Skull Kraken " to Xyz Summon " " ( 2000 / 0 ) in Attack Position . He activates the effect of " Leviathan Dragon " , detach ing his overlaid " Skull Kraken " to increase its ATK by 500 ( 2000 → 2500 ) . " Leviathan Dragon " attacks and destroys " Gagaga Magician " ( Yuma 2000 → 1000 ) . " Duel continues in the next Rank " . Featured cards . The following cards appeared in this chapter . cards in italics debuted here .