Yu - Gi - Oh ! - Episode 014 " The Light at the End of the Tunnel " , known as " Pitch - Black Duel ! Castle of Darkening " in the Japanese version and " The Castle of Dark Illusion " in the Odex dub , is the fourteenth episode of the " Yu - Gi - Oh ! " second series anime . It first aired in Japan on July 25 , 2000 and in the United States on February 2 , 2002 . When this episode first aired in the United States on " Kids WB ! " , it was merged with the following episode , so the Duel took place in just one episode titled " PaniK Attack " . " 4Kids TV " aired the episode in two parts in 2007 . Summary . Last episode ended with the gang hearing a loud scream and rushing to see where it came from . It was from Mai , who had just lost a Duel against an eliminator named PaniK ( her " Harpie Lady Sisters " are shown being destroy ed through unknown means and this somehow in turn causes Mai to be defeated ) , forcing her to give up all her Star Chip s , and therefore she is eliminated from Duelist Kingdom . Upset at the way PaniK treated her , Yami Yugi challenges him to a Duel . If he wins , he gets all of Mai ' s chips back . However , if PaniK wins , not only will he get Yugi ' s chips , Yugi will be burned to death . The Duel does not start very well for Yugi , as " Castle of Dark Illusions " makes it impossible to see any of PaniK ' s cards , and with a DEF of 2509 , almost none of his monster s can destroy it . All of Yami Yugi ' s first few monsters are destroyed , but he is not intimidated by PaniK ' s tricks and insults . He then starts mocking back at PaniK . He shows PaniK the " Swords of Revealing Light " in his hand , then he Summons " Curse of Dragon " in Defense Position and Set s a card . PaniK , believing the Set card is " Swords of Revealing Light " , Summons " Reaper of the Cards " and uses its effect in an attempt to destroy the Set card , but it turns out to be a Trap Card , " Spellbinding Circle " , which traps " Reaper of the Cards " and reduces its ATK by 700 . Yami Yugi then Sets 2 cards . PaniK says he is not finished yet . He has a whole bunch of powerful cards that can destroy Yugi and win the Duel . Featured Duels . Mai Valentine vs . PaniK . Duel already in progress . Mai has 800 Life Points and controls " Harpie Lady Sisters " ( 1950 / 2100 ) while PaniK controls " Castle of Dark Illusions " ( 920 → 1196 / 1930 → 2509 ) and an unknown monster . Monsters compatible with Night receive a 30 % Field Power Bonus . This includes DARK monsters . PaniK ' s turn PaniK ' s unknown monster attack s and destroy s " Harpie Lady Sisters " ( Mai : 800 → 0 LP ) . Yami Yugi vs . PaniK . Monsters compatible with Night receive a 30 % Field Power Bonus . This includes DARK monsters . Turn 1 : PaniK PaniK Normal Summon s " Castle of Dark Illusions " ( 920 → 1196 / 1930 → 2509 ) in Defense Position . The effect of " Castle of Dark Illusions " covers PaniK ' s side of the field in darkness , making Yugi unable to see what cards he plays , and also preventing Yugi ' s monsters from receiving a Field Power Bonus . Turn 2 : Yami Yugi Yugi Normal Summons " Celtic Guardian " ( 1400 / 1200 ) in Defense Position . Turn 3 : PaniK PaniK draws . He then Normal Summons " Barox " ( 1380 → 1794 / 1530 → 1989 ) in Attack Position . " Barox " attacks and destroys " Celtic Guardian " . Turn 4 : Yami Yugi Yugi draws . He then Normal Summons " Winged Dragon , Guardian of the Fortress " ( 1400 / 1200 ) in Defense Position . Turn 5 : PaniK PaniK draws . He then Normal Summons " Dark Chimera " ( 1610 → 2093 / 1460 → 1898 ) in Attack Position . Turn 6 : Yami Yugi Yugi draws . He then switch es " Winged Dragon , Guardian of the Fortress " to Attack Position . " Winged Dragon , Guardian of the Fortress # 1 " attacks . The attack briefly reveals PaniK ' s monsters . Turn 7 : PaniK " Barox " attacks and destroys " Winged Dragon , Guardian of the Fortress " ( Yugi : 2000 → 1606 LP ) . Turn 8 : Yami Yugi Yugi draws . At this point , he tells PaniK that the latter will be defeated in five turn s , while also reveal ing the " Swords of Revealing Light " in his hand . He then Normal Summons " Curse of Dragon " ( 2000 / 1500 ) in Defense Position and Set s a card . Turn 9 : PaniK PaniK draws " Reaper of the Cards " ( 1380 → 1794 / 1930 → 2509 ) in Attack Position . PaniK then activate s the effect of " Reaper of the Cards " to destroy Yugi ' s Set card , believing it to be " Swords of Revealing Light " , but the card turns out to be " Spellbinding Circle " which is immediately activated , decreasing the ATK of " Reaper of the Cards " by 700 and forbidding it from attacking or changing its battle position ( " Reaper of the Cards " : 1794 → 1094 / 2509 ) . Turn 10 : Yami Yugi Yugi draws . He then Sets two cards ( one of which is " Swords of Revealing Light " ) . Quotes . Yami : " ( smiles ) " I see how you work , PaniK — sneaking up on unsuspecting Duelists because you haven ’ t the courage to challenge them face to face . PaniK : " ( angrily ) " Watch your mouth , you insolent cur ! Yami : " ( his smile changes to a frown ) " True Duelists fight with honor and respect — not the underhanded tactics of a poacher . Featured cards . The following cards appeared in this episode . Cards in italics debuted here .