Joey Wheeler and Mai Valentine ' s Duelist Kingdom Duel Joey Wheeler and Mai Valentine faced each other in " Duel Monsters " in the preliminaries of the Duelist Kingdom tournament , in the " Yu - Gi - Oh ! " anime . It is based on a similar Duel from the " Yu - Gi - Oh ! " manga . The terrain was 40 % Mountain , 40 % Forest and 20 % Grassland . Events . Prior . Joey was looking for his first opponent in the tournament . Yami Yugi advised him to choose a terrain that suited his Deck . ( In the English version , Yami advised him to find an opponent at his level . ) Since his Deck contained mostly Warrior and Beast - Warrior - Type monsters , Joey thought the Grassland would be fine . Mai had wanted to Duel Yami , but thought it was a bad strategy to face him straight away . Planning on beating weaker Duelists and gathering more Star Chips first , she challenged Joey to a Duel . Since Joey had only one Star Chip and Mai was a powerful opponent , Téa Gardner tried talking Joey out of accepting the Duel , as losing would result in his elimination . She asked Yami to try talking him out of it , but Yami wished Joey luck . Joey had hoped Yami would say that as he wanted to accept the Duel rather than be remembered as a coward . Joey and Mai each bet one Star Chip . Before they began , Joey asked Mai why she entered the tournament . Mai replied that she wanted the prize money to spend on glamour . Joey said that was a weak reason and that he was fighting to save a life . Duel . Mai used her Aroma Tactics , in which she had scented her cards with various perfumes , allowing her to tell what they were by their smell . She used to tell what her cards were without looking and passed it off as a sixth sense . 1st turn : Joey Joey Summoned " Masaki the Legendary Swordsman " in the Grassland ( " Masaki " : 1100 → 1430 ATK ) . 2nd turn : Mai Mai Summoned " Harpie Lady " in the Mountains ( " Harpie Lady " : 1300 → 1690 ATK ) " Harpie Lady " attacked " Masaki " . Since land monsters were disadvantaged against flying monsters , " Masaki " lost its Field Power Bonus ( ATK : 1430 → 1100 ) and was destroyed by battle ( Joey : 2000 → 1410 Life Points ) . 3rd turn : Joey Joey was distracted by Mai ' s Aroma Tactics . He Summoned " Tiger Axe " in the Grassland ( " Tiger Axe " : 1300 → 1690 ATK ) and attacked " Harpie Lady " . Like with " Masaki " , " Tiger Axe " lost its Field Power Bonus ( " Tiger Axe " : 1590 → 1300 ATK ) and was destroyed ( Joey : 1410 → 1020 Life Points ) . Turn 4 : Mai Mai draws . She then Set s a card ( " Cyber Shield " ) . Turn 5 : Joey Joey draws . He then Sets a monster . Turn 6 : Mai Mai activates her face - down " Cyber Shield " , equipping it to " Harpie Lady " and increasing its ATK and DEF by 500 ( " Harpie Lady " : 1690 → 2190 / 1820 → 2320 ) . " Harpie Lady " attacks and destroys Joey ' s Set . Turn 7 : Joey Joey draws . He then Normal Summons in Defense Position . Turn 8 : Mai Mai activates her face - down " Elegant Egotist " to turn one " Harpie Lady " into three in Attack Position . None of Mai ' s monsters can attack during this turn due to " Elegant Egotist ' s " effect . Turn 9 : Joey Joey draws in Attack Position . Joey then activates the effect of " Time Wizard " and succeeds at the effect . Since the effect of " Time Wizard " was activated successfully , " Baby Dragon " is turned into . Doing this also ages Mai ' s " Harpie Ladies " , reducing their ATK to their original value ( " Harpie Ladies " : 2190 → 1300 / 2320 ) . " Thousand Dragon " attacks and destroys all three " Harpie Ladies " ( Mai : 2000 → 0 LP ) . Joey wins .