Yami Yugi and Mai Valentine ' s Duel Yugi and Mai ' s Duel ' is a Duel that occurred during the " Yu - Gi - Oh ! " anime between Yami Yugi and Mai Valentine in the Duelist Kingdom finals . This Duel is based on Yugi and Mai ' s Duel in the manga series . Prior Events . The first round of the Duelist Kingdom finals is set to begin between Yugi Muto and Mai Valentine . Mai is ready to both duel and win . However , Yugi finds himself distracted , and a little disturbed , by the lengths his alter ego was willing to go to win against Kaiba earlier on the castle , and is determined to keep him out of this Duel . Or , depending on the version , perhaps he ' s just thinking about what he ' ll do once he reaches Pegasus . The Duel . Turn 1 : Mai Mai Normal Summon s " Harpie Lady " ( 1300 / 1400 ) in Attack Position , then Set s a card . Turn 2 : Yugi Muto Yugi Summons " Gaia The Fierce Knight " ( 2300 / 2100 ) in Attack Position . Yugi attack s " Harpie Lady " with " Gaia " , but Mai activate s her face - down " Mirror Wall " to negate the attack and halve the ATK of " Gaia The Fierce Knight " ( 2300 → 1150 / 2100 ) . Turn 3 : Mai Mai equip s " Harpie Lady " with " Cyber Shield " , increasing its ATK and DEF by 500 ( 1300 → 1800 / 1400 → 1900 ) . Mai attacks and destroy s " Gaia The Fierce Knight " with " Harpie Lady " ( Yugi : 2000 → 1350 ) . Turn 4 : Yugi Muto Yugi Summons " Summoned Skull " ( 2500 / 1200 ) in Attack Position . " Summoned Skull " attacks " Harpie Lady " , with Yugi not knowing that " Mirror Wall " is a Continuous Trap Card , and thus can be used again . The effect of " Mirror Wall " then activates , which negates the attack and halves the ATK of " Summoned Skull " ( 2500 → 1250 / 1200 ) . Yugi Sets a card . Turn 5 : Mai Mai activates " Harpie ' s Feather Duster " to destroy Yugi ' s Set " Spellbinding Circle " . Turn 6 : Yugi Muto Yugi changes " Summoned Skull " to Defense Position and Sets a monster face - down . Turn 7 : Mai Mai equips " Harpie Lady " with " Rose Whip " , increasing its ATK and DEF by 300 ( 1800 → 2100 / 1900 → 2200 ) . " Harpie Lady " attacks and destroys Yugi ' s Set " Feral Imp " ( 1300 / 1400 ) . Turn 8 : Yugi Muto Yugi passes his turn . Turn 9 : Mai Mai Summons " Harpie ' s Pet Dragon " ( 2000 / 2500 ) in Attack Position . " Harpie ' s Pet Dragon " gains 300 ATK and DEF for each " Harpie Lady " on the field , and there is currently one ( 2000 → 2300 / 2500 → 2800 ) . Mai attacks and destroys " Summoned Skull " with " Harpie ' s Pet Dragon " . Turn 10 : Yugi Muto Yugi Summons " Dark Magician " ( 2500 / 2100 ) in Defense Position , then Sets a card . Turn 11 : Mai Mai activates " Shadow of Eyes " . Now all male monsters that Yugi controls that are in Defense Position are switched to Attack Position . Any monsters that have been affected by this effect must attack the turn they have been switched to Attack Position . " Dark Magician " is switched to Attack Position and is forced to attack " Harpie Lady " . The effect of " Mirror Wall " then activates , negating the attack and halving the ATK of " Dark Magician " ( 2500 → 1250 / 2100 ) . Mai then activates another " Harpie ' s Feather Duster " to destroy Yugi ' s Set " Mirror Force " . Mai attacks and destroys " Dark Magician " with " Harpie ' s Pet Dragon " ( Yugi : 1350 → 300 ) . Turn 12 : Yugi Muto At this point , Yugi begins focusing seriously on the Duel . Yugi activates " Brain Control " , allowing him to take control of " Harpie ' s Pet Dragon " . Yugi then Sets a card and Summons " Catapult Turtle " ( 1000 / 2000 ) in Attack Position . Yugi then activates the effect of " Catapult Turtle " , Tributing " Harpie ' s Pet Dragon " to destroy " Mirror Wall " and inflict damage to Mai equal to half the ATK of " Harpie ' s Pet Dragon " on the field ( Mai : 2000 → 850 ) . Turn 13 : Mai Mai draws . She then activates " Elegant Egotist " to turn her one " Harpie Lady " into three " Harpie Ladies " ( 2450 / 2100 each ) in Attack Position . Mai decides not to attack as she believes Yugi ' s Set card is a Trap Card . Turn 14 : Yugi Muto Yugi reveals his bluff by activating his face - down " Monster Recovery " , which allows him to shuffle " Catapult Turtle " and the remaining cards in his hand to his Deck and draw five new cards . Yugi Normal Summons " Mystical Elf " ( 800 / 2000 ) in Defense Position . This monster is unaffected by the effect of " Shadow of Eyes " since it is a female monster . Turn 15 : Mai Mai activates " Monster Reborn " to Special Summon " Harpie ' s Pet Dragon " from her Graveyard in Attack Position . This time , there are three " Harpie Ladies " on the field ( 2000 → 2900 / 2500 → 3400 ) . Mai attacks and destroys " Mystical Elf " with her " Harpie Ladies " . Turn 16 : Yugi Muto Yugi activates " Swords of Revealing Light " . Mai ' s monsters cannot attack for three turn s and all of her monsters must be face - up . Yugi then Summons " Kuriboh " ( 300 / 200 ) in Attack Position . Turn 17 : Mai Mai passes her turn . " Swords of Revealing Light " has two turns remaining . Turn 18 : Yugi Muto Yugi activates " Monster Reborn " to Special Summon " Gaia The Fierce Knight " from his Graveyard in Attack Position . Turn 19 : Mai Mai passes her turn . " Swords of Revealing Light " has one turn remaining . Turn 20 : Yugi Muto Yugi passes his turn . Turn 21 : Mai Mai draws another " Harpie Lady " card but decides not to play it as " Harpie ' s Pet Dragon " has enough ATK to destory Yugi ' s monster and win the duel . Mai passes her turn . " Swords of Revealing Light " expires , and Mai is now free to attack . Turn 22 : Yugi Muto Yugi draws . He compliments Mai on a well played duel but informs her it ' s over . He reveals and activates " Black Luster Ritual " . He uses " Gaia The Fierce Knight " and " Kuriboh " as Tributes to Ritual Summon " Black Luster Soldier " ( 3000 / 2500 ) in Attack Position . Yugi attacks and destroys " Harpie ' s Pet Dragon " with " Black Luster Soldier " ( Mai : 850 → 750 ) . Turn 23 : Mai At this point , Mai realizes that she has nothing left in her Deck that can destroy " Black Luster Soldier " . Not wanting to see her " Harpie Ladies " destroyed , Mai surrenders the Duel . Aftermath . Mai is eliminated from the tournament . Before she leaves , Yugi thanks her not just for the duel , but for talking some sense into him . The next round between Joey Wheeler and Bandit Keith starts soon .