Yu - Gi - Oh ! Duelist - Duel 009 " Demon Lightning " is the ninth chapter of " Yu - Gi - Oh ! Duelist " in the English version and sixty - eighth chapter of " Yu - Gi - Oh ! " in the Japanese version . This chapter was originally printed in the " Weekly Shōnen Jump " magazine in Japanese . It has been reprinted in in volume 1 of " Yu - Gi - Oh ! Duelist " and volume 5 of the bunkoban . Summary . Dark Yugi and Haga have 750 and 450 Life Points respectively . Haga has managed to destroy " Cocoon of Evolution " before it achieved its ultimate form . However it still hatched as " Great Moth " and he wonders how he can defeat it . Dark Yugi ' s friends comment that the " Great Moth " looks tough and Mai thinks that Haga has turned the tables . Haga asks who ' s laughing now and if the fear has shrivelled up Dark Yugi ' s tongue . Dark Yugi confidently replies that he was picturing in his head how the squash the " big mosquito " . Haga is unconvinced and says that he would like to see Dark Yugi try . Haga gets his " Great Moth " to take flight , making it immune to any ground based attacks . He notes that none of Dark Yugi ' s monsters can fly , with the exception of " Curse of Dragon " , whose ATK is lower than that of " Great Moth " anyway . Haga announces that he will take out " Gaia the Fierce Knight " and " Beaver Warrior " first . Dark Yugi worries about this as " Gaia " is his main offense right now . He draws a card , thinking everything rests in it . " Great Moth " uses its " Moth Hurricane " attack , which Haga says should blast any landbound monsters . Dark Yugi ' s Life Points drop to 600 and Haga laughs that " Gaia " has been destroyed . However Dark Yugi reveals that he played " Polymerization " , fusing " Gaia the Fierce Knight and " Curse of Dragon " into " Gaia the Dragon Champion " . " Gaia " can now fly and has 2600 ATK , matching that of " Great Moth " . Haga laughs that the ATK of " Gaia " didn ' t actually go up and explains that in the last attack , " Great Moth " scattered poison pollen , which has infected Dark Yugi ' s monsters and dropped the ATK of " Gaia the Dragon Champion " to 2100 . Dark Yugi activates " Magic Mist " , surrounding the monsters in water vapour , washing away the pollen and preventing " Gaia " from losing any more ATK . Haga attacks " Gaia the Dragon Champion " with " Great Moth " , using its " Moth Burning Death Tornado " attack . This destroys " Gaia " and drops Dark Yugi ' s Life Points to 100 . Haga laughs , celebrating that he is going to win . However Dark Yugi laughs too and says that Haga has fallen into his trap . He explains that " Gaia the Dragon Champion " was just a decoy and then Summons " Summoned Skull " . Haga sighs in relief , thinking he had been worried for a moment , but " Great Moth " has more ATK than " Summoned Skull " and if they battle Dark Yugi ' s Life Points will go to 0 . However Dark Yugi asks if Haga has realized why he played " Magic Mist " yet . The " Great Moth " is now wet and therefore more conductive to electricity . This raises the ATK of " Summoned Skull " , who uses a lightning based attack to 3100 . " Summoned Skull " attacks and destroys " Great Moth " with " Demon Lightning " , dropping Haga ' s Life Points to 0 . Dark Yugi ' s friends celebrate and Mai is impressed . Dark Yugi takes Haga ' s two Star Chips per their wager , eliminating Haga from the tournament 20 minutes after it began . He laughs at how the first person to lose all their Star Chips is the champion of Japan . He calls Haga an insect and tells him to get off the island or he ' ll pull of his legs , one by one . With three Star Chip , Dark Yugi thinks he needs seven more to get to Pegasus Castle . Haga gets " Great Moth " to take flight . Dark Yugi draws " Polymerization " and activates it fusing " Gaia the Fierce Knight " and " Curse of Dragon " into " Gaia the Dragon Champion " ( ATK : 2600 ) . Haga gets " Great Moth " to attack all landbound monsters . " Beaver Warrior " is destroy ed ( Dark Yugi : 750 → 600 Life Points ) . " Gaia the Dragon Champion " becomes infected by the poison pollen " Great Moth " spread ( ATK : 2600 → 2100 ) . Dark Yugi activates " Magic Mist , surrounding the monsters with water vapor and removing the pollen . Haga attacks and destroys " Gaia the Dragon Champion " with " Great Moth " ( Dark Yugi : 600 → 100 Life Points ) . Dark Yugi Summons " Summoned Skull " ( ATK : 2500 ) . Featured Duels . Insector Haga VS Dark Yugi . " Summoned Skull " attacks " Great Moth " . Its gains ATK due to the vapor on " Great Moth " conducting its electrical attack ( ATK : 2500 → 3100 ) . " Great Moth " is destroyed . ( Haga : 450 → 0 Life Points ) . Dark Yugi wins . Featured cards . The following cards appeared in this chapter . Cards in italics debuted here . Anime adaption . The end of the fifth episode of the " Yu - Gi - Oh ! " anime is based on this chapter . There are a number of differences including :