Yu - Gi - Oh ! ZEXAL - Rank 019 " Messenger from the Moon ! ! " is the nineteenth chapter of the " Yu - Gi - Oh ! ZEXAL " manga . This chapter was first printed in the 8 / 2012 issue of " V Jump " , released on June 21 , 2012 . It was later reprinted in English in the " Weekly Shonen Jump Alpha " , in the 7 / 9 / 2012 issue . Summary . The hooded person who followed Shark reveals herself as Luna , and says that Shark can call her a messenger from the moon . Shark replies that she looks like something straight out of a fairy - tale , not that he hates them . Luna says that she doesn ' t have a quarrel with him , but she must face him . They then begin a Duel , a crescent - shaped Duel Gazer tattoo appearing over Luna ' s left eye . Shark takes the first attack , drawing a card and Summoning " Right - Hand Shark , " then Special Summon ing " Left - Hand Shark , " explaining that he can Special Summon " Left - Hand Shark " from the hand or Graveyard when " Right - Hand Shark " is on the field . He can ' t attack on the first turn , so he Sets two cards to end his turn . Luna remarks on his two monsters , asking if Shark really thinks that ' s good enough to stop her . Shark grins , telling her to yip all she wants . Luna begins her turn , activating the Field Spell Card " Level Denial . " As long as it ' s in play , monsters with Level s cannot attack . She then Summons " Moon Magician , " and then Special Summons " Moon Gardna " since Shark has at least two monsters on his field . Shark grimly notes the two Level 4 monsters , and Luna overlays them , creating an Overlay Network to Xyz Summon " Kachi Kochi Dragon . " She attacks " Right - Hand Shark , " and " Kachi Kochi Dragon ' s " " Pulverize " attack creates an eruption of stone spikes , reducing Shark to 3400 Life Points . Luna then activates " Kachi Kochi Dragon ' s " effect , expending an Overlay Unit to attack again since it destroyed an enemy monster . Stone spikes erupt from the ground and destroy " Left - Hand Shark , " and Shark shields himself from the backlash as his Life Points are reduced to 2600 . Luna Sets a card and ends her turn . She asks Shark what ' s wrong . She ' d heard he rips his opponents to pieces once he gets his teeth into them . Apparently , she was misinformed . Smiling , Shark tells her they ' ll see about that ; he ' s already got his fangs buried deep into her throat . Luna observes that he ' s a sore loser , but Shark replies that he ' s all set to tear Luna to shreds , drawing his next card . He Special Summons his " Right - Hand Shark " from his Graveyard , explaining that when he has no monsters on the field , he can Special Summon it from his Graveyard . He also Special Summons " Left - Hand Shark " from his Graveyard , reminding her that he can Special Summon it from either the hand or the Graveyard when he controls " Right - Hand Shark . " That ' s not all , when it ' s Special Summoned from the Graveyard , it gains a Level , increasing from Level 3 to Level 4 , the same Level as " Right - Hand Shark , " as Luna realizes . Overlaying the two Level 4 monsters , Shark chants " Howl , unknown roar ! Rise from the darkness of the abyss ! Xyz Summon ! " as he Xyz Summons " Bahamut Shark " , a 2600 ATK monster . He immediately activates " Bahamut Shark ' s " effect , " Divine Soul , " as Luna asks if " Bahamut Shark " is Shark ' s ace monster . Shark explains that " Bahamut Shark ' s " effect allows him to use an Overlay Unit to Xyz Summon an Xyz Monster of a Rank below that of " Bahamut Shark . " He Xyz Summons the Rank 3 " Black Ray Lancer " , much to Luna ' s shock . Then , Shark activates a Spell Card , " Chain Summon , " since he Special Summoned more than one Xyz Monster in a row , he can Special Summon an Xyz Monster of a lower Rank than the others , calling out the Rank 2 " Cat Shark . " Luna is shocked that Shark has Summoned 3 Xyz Monsters at once . Shark replies that he told her that he was ready to take her down , activating a Trap Card , " Xyz Drop , " attaching it to his " Cat Shark . " Luna responds with her own Trap Card , " Rank Drop , " destroying all monsters with Ranks on her opponent ' s field . Shark smiles ; he thought so . That ' s why Luna made him focus on Summoning Xyz Monsters . He activates a Counter Trap Card " Seven Tools of the Bandit , " paying 1000 Life Points to negate Luna ' s trap and destroy it , reducing his Life Points to 1600 . Then he uses an Overlay Unit to activate his " Cat Shark ' s " effect , doubling the ATK of all Rank 4 Xyz Monsters for the rest of the turn . Defenseless , Luna can only growl in frustration as Shark ' s monsters destroy her " Kachi Kochi Dragon " and wipe out her Life Points , and she screams as she ' s thrown through the air . Removing his Duel Gazer , Shark asks Luna if she is alright ; she admits that he truly deserves the nickname " Shark " and she is impressed that Shark could Summon 3 Xyz Monster s at once during the Duel , and says that she wasn ' t wrong . Luna reveals she is a Numbers Hunter whose goal is to eliminate the " Numbers " , and says that Shark is the only one who can stop Dr . Faker , and for that he needs the power to do so - a " Number " . Shark angrily declines , saying that he was already once possessed by a " Number " , and that he cannot do so . However , Luna replies that he knows how terrifying a " Number " can be , and that this is just why it would be okay . She further explains that " Numbers " are mirrors that reflect the hearts of the people , and at that time , his heart was full of darkness , but Yuma and Astral freed him from that darkness . She then gives Shark a mysterious card , and says that that ' s a new power to protect him . Later , Yuma and the members of the Numbers Club gather in Cathy ' s house . Everyone is impressed at her mansion . Astral comments that it is much better than Yuma ' s house . Cathy then tells Yuma that if he marries her , all that would be his , and Kotori doesn ' t believe she said that and yells at her . Cathy apologies with Cologne , and tells her that she can live there if she wants to . However , she just turns around and says that she likes Yuma ' s house better , and that she prefers love to money . Tetsuo then asks Cathy what she wanted to show them . She then presses a cat paw - like button , which opens a door leading to a big room , with many researchers and big computers . Cathy explains that as an apology for the trouble she caused , the Numbers Club ' s headquarters would be established there , where they can look up mysterious phenomenons happening throughout the world , and therefore , locate the " Numbers " . While the guys get amazed on the technology and say how Cathy is really put into it , Kotori sarcastically says Cathy is letting her money do the talking , while she replies saying asking if Kotori could do that . Yuma says that finding the " Numbers " is not a game , to which Astral replies saying that yet it was heartening , and advising Yuma to tell the others about the previous day . Yuma then tells them that Astral told him that now he got three " Numbers " , some of his memories have returned . Yuma asked what he remember , and Astral says his enemy is Dr . Faker , who plans on using the hidden powers of the " Numbers " to destroy the Astral World ; However , it is linked to this world . So , if the Astral World dies , this one will die as well . Kotori asks if that ' s for real , and Yuma answers saying that Astral doesn ' t lie - in fact , he can ' t lie . Cathy asks what is that hidden power of the " Numbers " , but Astral hasn ' t regained that much memory yet . Takashi asks if Dr . Faker knows both worlds are connected , and Cologne says that he brought her to life , but that he is a really scary scientist , and that she wouldn ' t put it past him . Takashi and Tokunosuke get scared as knows about that fact but still wants to destroy the Astral World , and that a man like that is collecting the " Numbers " . Yuma says that they have to get the " Numbers " first to stop Dr . Faker ' s plans , and Tetsuo then deduces the fate of the world is riding on this . Then , everyone , ( except for Tokunosuke , who ends up getting peer pressured into it ) , gets spirited up and say that they will keep on collecting the " Numbers " , and that the Numbers Club will protect the world . Astral then says to himself that thanks to Yuma , it looks as though his destiny is on the move . Featured Duel : Ryoga " Shark " Kamishiro vs . Luna . Turn 1 : Shark Shark Normal Summon s " Right - Hand Shark " ( 1500 / ? ? ? ) in Attack Position . Then , he Special Summon s " Left - Hand Shark " ( 1300 / ? ? ? ) from his hand , also in Attack Position , as he controls a " Right - Hand Shark " . Shark Set s 2 cards . Turn 2 : Luna Luna activate s the Field Spell Card " Level Denial " , which prevents all monsters that have a Level from attacking . She Normal Summons " Moon Magician " ( 1800 / ? ? ? ) . Then , she Special Summons " Moon Gardna " ( 100 / ? ? ? ) from her hand as Shark controls two monsters . Luna overlay s her two monsters to Xyz Summon " Kachi Kochi Dragon " ( 2100 / 1300 ) in Attack Position . Luna attacks and destroys " Right - Hand Shark " with " Kachi Kochi Dragon " ( Shark 4000 → 3400 ) . She activates the effect of " Kachi Kochi Dragon " , detach ing an Overlay Unit to attack once again in a row , as it destroyed an opponent ' s monster . " Kachi Kochi Dragon " attacks and destroys " Left - Hand Shark " ( Shark 3400 → 2600 ) . Luna Set s a card . Turn 3 : Shark Shark Special Summons " Right - Hand Shark " from his Graveyard as he controls no monsters . Next , he Special Summons " Left - Hand Shark " from his Graveyard as he controls " Right - Hand Shark " , increasing its Level by 1 via its other effect . Shark overlays his two monsters to Xyz Summon " Bahamut Shark " ( 2600 / 2100 ) . He activates its effect , detaching an Overlay Unit to Special Summon " Black Ray Lancer " ( 2100 / 600 ) from his Extra Deck . Finally , he activates the Spell Card " Chain Summon " , which , as Shark Xyz Summoned 2 Xyz Monster s this turn , Special Summons " Cat Shark " ( 500 / 500 ) from his Extra Deck . Shark activates his face - down " Xyz Drop " , attach ing itself to " Cat Shark " as an Overlay Unit . Luna activates her face - down " Rank Drop " to destroy all monsters Shark controls that have a Rank , but Shark chain s with " Seven Tools of the Bandit " , pay ing 1000 Life Points to negate " Rank Drop " ( Shark 2600 → 1600 ) . He activates the effect of " Cat Shark " , detaching an Overlay Unit to double the ATK of all Rank 4 or lower Xyz Monsters he controls until the End Phase ( " Bahamut Shark " 2600 → 5200 , " Black Ray Lancer " 2100 → 4200 , " Cat Shark " 500 → 1000 ) . Shark attacks and destroys " Kachi Kochi Dragon " with " Bahamut Shark " and attacks directly with " Black Ray Lancer " and " Cat Shark " ( Luna 4000 → 0 ) . Featured cards . The following cards appeared in this chapter . Cards in italics debuted here .