Yami Yugi and Mako Tsunami ' s Duel Yami Yugi and Mako Tsunami faced each other in " Duel Monsters " , in the preliminary stage of the Duelist Kingdom tournament , in the " Yu - Gi - Oh ! " manga . This is based on a similar Duel from the " Yu - Gi - Oh ! " manga . The terrain for the Duel was 50 % ocean and 50 % desert , split between Mako and Yami ' s sides of the field respectively . Events . Prior events . Mako left fish cooking over a fire unattended in the hopes that it would attract Duelists to the cliffs , where his monsters were at an advantage due to the ocean Field Power Bonus . While Yugi Muto and his friends were desperately searching for food , Joey Wheeler caught he scent of Mako ' s fish and tried to convince his friends that the should take the food for themselves . Téa Gardner disagreed , but eventually everyone sat down around the food . Mako then emerged from the ocean and began arguing with Joey over ownership of the fish . When Mako saw that the others were Duelists and one of them was Yugi , he realized he had made a big " catch " with his " bait " and offered to share his food with them . After the meal , Yugi and his friends got up to leave , but Mako threw a harpoon , which stuck into the ground just beside Yugi . He then explained that the fish had been bait to lure in Duelists and challenged Yugi to a Duel . Yugi switched to Yami Yugi and accepted . Yami Yugi ' s side of the field consisted of the Desert terrain , while Mako ' s consisted of the Ocean . The Duel . 1st turn : Mako Mako Summoned " Fiend Kraken " in Attack Mode in the Ocean ( ATK : 1200 → 1560 ) . It hid itself under the water . 2nd turn : Yami Yami Summoned " Horn Imp " in Attack Mode . He then noticed that Mako ' s monster was not visible , making him unable to attack it . 3rd turn : Mako Mako got " Fiend Kraken " to emerge from the water , attack and destroy " Horn Imp " ( Yami : 2000 → 1740 Life Points ) and then retreat back into the water . He described this technique as his " sea stealth attack " . 4th turn : Yami Yami Summoned " Feral Imp " in Attack Mode . 5th turn : Mako Mako was familiar with how " Feral Imp " could be used for lightning - based attacks . To combat this , he played " Jellyfish " in face - down Defense Mode ( " Jellyfish " : 1500 → 1950 DEF ) . 6th turn : Yami Yami equipped " Horn of the Unicorn " to " Feral Imp " ( " Feral Imp " : 1300 → 2000 ATK ) and switched it to Attack Mode . Although Yami could not see Mako ' s monsters , " Feral Imp " used a lightning - based attack , so he was able to attack the ocean and the electricity would flow through and attack all monsters within it . However " Jellyfish " absorbed the electricity and became stronger as a result , while the ATK of " Feral Imp " returned to normal . ( " Feral Imp " : 2000 → 1300 ATK ) . 7th turn : Mako " Fiend Kraken " attacked and destroyed " Feral Imp " ( Yami : 1740 → 1480 Life Points ) . 8th turn : Yami Yami Summoned " Silver Fang " in Defense Mode and activated " Full Moon " . 9th turn : Mako Mako Summoned " Kairyu - Shin " in Attack Mode in the Ocean ( " Kairyu - Shin " : 1800 → 2340 ATK ) . " Kairyu - Shin " attacked and destroyed " Silver Fang " . The tidal wave from the attack flooded Yam ' s side of the field . Since the moon ' s gravitational pull affected the tide , this covered twice as much area as usual due to the presence of the moon card . As a result , Yami was left with one desert zone . Mako remarked that the fear of the sea was written all over Yami ' s face , just as it once was on his . When questioned about this , Mako told Yami that his father had been a great fisherman , but he had lost him to the sea . He then recollects on how he and his father had been caught in a maelstrom . Mako ' s father had managed to secure Mako onto the boat , but he himself got swept overboard . Although Mako never saw his father after that , he was still convinced that he was alive . 10th turn : Yami Yami Summoned " Giant Soldier of Stone " in Defense Mode in the desert ( " Giant Soldier of Stone " : 2000 → 2600 DEF ) . 11th turn : Mako Mako suspected Yami was going to move " Giant Soldier of Stone " into another zone to create an island , giving him room to play more monsters , so he Summoned " Great White Terror " in Attack Mode in the Ocean ( " Great White Terror " : 1500 → 1950 ATK ) and got it , " Kairyu - Shin " and " Fiend Kraken " to surround " Giant Soldier of Stone " giving it no room to move . 12th turn turn : Dark Yugi Yami switched " Giant Soldier of Stone " to Attack Mode . Mako was surprised and reminded Yami that he could not attack any of his monsters . However Yami explained that he was not getting " Giant Soldier of Stone " to attack any of them . Instead , he got it to attack and destroy his own card , " Mystical Moon " or " Full Moon " . With the moon , gone its effect on the tide disappeared , so the waters flowed out of the zones around " Giant Soldier of Stone " , leaving Mako ' s monsters stranded . Yami then Summoned " Curse of Dragon " in Attack Mode ( ATK : 2000 ) and activated " Burning Land " to destroy Mako ' s monsters and take out his Life Points ( Mako : 2000 → 0 Life Points ) , causing Yami to win the Duel . Aftermath . Mako was gracious in defeat and compliment Yami Yugi , who said that Mako was not too bad himself . Mako was then left with one Star Chip , which he promised to use to start over and work to win the prize money for his boat .