Katsuya Jonouchi and Mai Kujaku ' s Duel ( manga ) Katsuya Jonouchi and Mai Kujaku faced each other in " Duel Monsters " in the preliminaries of the Duelist Kingdom tournament , in the " Yu - Gi - Oh ! " manga . The terrain was 40 % Mountain , 40 % Grassland and 20 % Desert . Events . Prior . Jonouchi was looking for his first opponent in the tournament . Dark Yugi ( manga ) advised him to choose a terrain that suited his Deck . Since his Deck contained mostly Warrior and Beast - Warrior - Type monsters , Jonouchi thought the Grassland would be fine . Mai had wanted to Duel Dark Yugi , 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 Jonouchi to a Duel . Since Jonouchi had only one Star Chip and Mai was a powerful opponent , Anzu Mazaki tried talking Jonouchi out of accepting , as losing would result in his elimination . She asked Dark Yugi to talk him him out of it , but Dark Yugi wished Jonouchi luck . Jonouchi had hoped Dark Yugi would say that as he wanted to accept the Duel , rather than be remembered as a coward . Jonouchi and Mai each bet one Star Chip . Before they began , Jonouchi asked Mai why she entered the tournament . Mai replied that she wanted the prize money to spend on glamour , which Jonouchi said 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 : Mai Mai Summoned " Harpy Lady " in the Mountains ( " Harpy Lady " : 1300 → 1690 ATK ) . 2nd turn : Jonouchi Jonouchi was distracted by Mai ' s Aroma Tactics . He Summoned " Tiger Axe " in the Grassland ( ATK : 1300 → 1690 ) and attacked " Harpy Lady " . Since land monsters were disadvantaged against flying monsters , " Tiger Axe " lost its Field Power Bonus ( " Tiger Axe " : 1590 → 1300 ATK ) and was destroyed in battle ( Jonouchi : 2000 → 1610 Life Points ) . Jonouchi Summoned " Kojikocy " in the Grassland ( " Kojikocy " : 1500 → 1950 ATK ) . 3rd turn : Mai Mai equipped " Harpy Lady " with " Electro - Whip " ( " Harpy Lady " : 1690 → 1990 ATK ) , again without looking at the card she played . " Harpie Lady " attacked and destroyed " Kojikocy " ( Jonouchi : 1610 → 1120 Life Points ) . Mai said that Jonouchi could not beat her with a card like that and explained that each turn her " Harpy Lady " increases in beauty , elegance and strength . 4nd turn : Jonouchi Jonouchi Summoned " Warrior of Gardna " . 5th turn : Mai Mai equipped " Harpy Lady " with " Cyber Bondage " ( " Harpy Lady " : 1990 → 2490 ATK ) . " Harpy Lady " attacked and destroyed " Warrior of Gardna " ( Jonouchi : 1120 → 810 Life Points ) . Mai laughed and asked if Jonouchi had learned yet that he ' s nothing but prey to her . Jonouchi became increasingly concerned about how Mai was able to tell what her cards were without looking . He wondered if she had ESP and thought that he wasn ' t good enough to beat her . Mai noticed Anzu cheering for Jonouchi and asked wasn ' t it her who had said " If you shout the Duelist will hear you feelings and you ' ll help him win . " She then told Anzu to go ahead and make Jonouchi win . Mai smiled and said that type of thing is useless and asked advised Jonouchi that " Today ' s friends are tomorrow ' s enemies " , he could not become a true Duelist and play with his friends at the same time and that Duelists cannot trust anyone but themselves . Anzu started getting really frustrated with Mai , but Dark Yugi said he would make Jonouchi win with just one word and reminded him of the " something you can show , but can ' t see " riddle . Mai burst out laughing at the idea of this being the strategy that would make Jonouchi win . Jonouchi remembered answering that with " friendship " before , but couldn ' t see how that could help him win this time . Thinking he had let Shizuka down , he began to imagine what the world would be like if she became blind and closed his eyes to see what it would be like . No longer concentrating on his sense of sight , he noticed the smell of Mai ' s perfumes and figured out her Aroma Tactics . He explained that the cards could be shown , but their smell couldn ' t be seen . No longer distracted by Mai ' s trick , Jonouchi was able to focus on the Duel properly . Mai was angry that such a beginner could figure out her Aroma Tactics , but still affirmed that Jonouchi couldn ' t defeat her in a hundred years . Jonouchi said that having his friends next to him made him feel that Mai wasn ' t so tough and that he would take her up on her " hundred years " comment . 6th turn : Jonouchi Jonouchi Summoned " Baby Dragon " in Defense Mode . Dark Yugi remembered Yugi giving Jonouchi that card . Jonouchi mentally told Dark Yugi to watch as he was not going to waste the card he gave him . 7th turn : Mai Mai laughed that " Baby Dragon " was a good choice as it was a card for babies . She at least commended Jonouchi for playing it in Defense Mode , so he would not take damage when she destroyed it . Instead of attacking it , she played " Kaleidoscope " to multiply her " Harpy Lady " into three copies , " Harpy Lady 1 " , " Harpy Lady 2 " , " Harpy Lady 3 " . She was unable to attack the turn she played " Kaleidoscope " . 8th turn : Jonouchi Jonouchi Summoned " Garoozis " in the Grassland ( " Garoozis " : 1800 → 2340 ATK ) . 9th turn : Mai The harpies attacked " Garoozies " , which lost its Field Power Bonus ( " Garoozis " : 2340 → 1800 ATK ) , and destroyed it ( Jonouchi : 810 → 120 Life Points ) . 10th turn : Jonouchi Dark Yugi noted to himself that Mai ' s strategy revolved around powering - up " Harpy Lady " , which seemed to be the only monster in her Deck , so if the " Harpy Lady " died the whole strategy would fall apart . Jonouchi recalled receiving the card " Time Wizard " from Yugi . Yugi explained that the " Time Wizard " can do many things including fast forward a hundred years , turning " Baby Dragon " into an adult . With one last chance to get " Baby Dragon " , Jonouchi put all his hope in his next draw and got it . Jonouchi activated " Time Wizard " , which aged " Baby Dragon " into " Thousand Dragon " ( ATK : 2400 ) and made the harpies old and weaker ( " Harpy Lady 1 " / " Harpy Lady 2 " / " Harpy Lady 3 " : 2490 → 1300 ATK ) . " Thousand Dragon " attacked and destroyed the harpies ( Mai : 2000 → 0 Life Points ) . Aftermath . Jonouchi said to Mai that he may not be a " true Duelist " , but there is one thing that does not change after a hundred years and it is " something you can show , but can ' t see " .