Yu - Gi - Oh ! - Episode 011 " The Dueling Monkey " , known as " Friendship Power ! Barbarian # 1 & # 2 " in the Japanese version , is the eleventh episode of the " Yu - Gi - Oh ! " anime . It first aired in Japan on June 27 , 2000 and in the United States on December 15 , 2001 . In this episode , Greg Abbey replaces Sam Riegel as the voice of Tristan Taylor . Featured Duels . Mai Valentine vs . Unknown Opponent . Duel already in progress . Mai control s " Harpie Lady Sisters " ( 1950 / 2100 ) while her opponent controls an unknown monster and has 650 LP remaining . Mai ' s turn " Harpie Lady Sisters " attack s and destroy s the opponent ' s monster ( Mai ' s opponent : 650 → 0 LP ) . Joey Wheeler vs . Rex Raptor . Monsters compatible with Desert , Mountain or Meadow will receive a 30 % Field Power Bonus . This includes Beast - Warrior , Dinosaur , Dragon , Rock , Thunder , Warrior , Winged Beast and Zombie - Type monsters . Turn 1 : Joey Joey ' s hand contains " Baby Dragon " , " Time Wizard " , " Leogun " , " Axe Raider " , and " Kuriboh " . Joey Normal Summon s " Baby Dragon " ( 1200 / 700 ) in Defense Position . Turn 2 : Rex Rex Normal Summons " Two - Headed King Rex " ( 1600 → 2080 / 1200 → 1560 ) in Attack Position . " Two - Headed King Rex " attack s and destroy s " Baby Dragon " . Turn 3 : Joey Joey draws . Joey Normal Summons " Leogun " ( 1750 / 1550 ) in Attack Position . Having not noticed " Two - Headed King Rex " had gained 480 ATK from the Field Power Bonus , Joey uses " Leogun " to attack " Two - Headed King Rex " . " Two - Headed King Rex " destroys " Leogun " ( Joey : 2000 → 1670 LP ) . Turn 4 : Rex Rex passes . Turn 5 : Joey Joey Normal Summons " Axe Raider " ( 1700 → 2210 / 1150 → 1495 ) in Attack Position . " Axe Raider " attacks and destroys " Two - Headed King Rex " ( Rex : 2000 → 1870 LP ) . Turn 6 : Rex Rex draws . He then Normal Summons " Sword Arm of Dragon " ( 1750 → 2275 / 2030 → 2639 ) in Attack Position . " Sword Arm of Dragon " attacks and destroys " Axe Raider " ( Joey : 1670 → 1605 LP ) . Turn 7 : Joey Joey draws . He then Set s a monster and Sets " Time Wizard " in the Magic & Trap Card Zone . Turn 8 : Rex Rex Normal Summons " Megazowler " ( 1800 → 2340 / 2000 → 2600 ) in Attack Position . " Megazowler " attacks and destroys Joey ' s Set " Rock Ogre Grotto 1 " ( 800 → 1040 / 1200 → 1560 ) . Turn 9 : Joey Joey draws . He then Normal Summons " Flame Swordsman " ( 1800 → 2340 / 1600 → 2080 ) in Attack Position . Turn 10 : Rex Rex draws . " Megazowler " attacks " Flame Swordsman " . " Megazowler " then loses its Field Power Bonus ( " Megazowler " : 2340 → 1800 / 2600 → 2000 ) as it is a Dinosaur - Type monster battling a FIRE monster . " Flame Swordsman " destroys " Megazowler " ( Rex : 1870 → 1330 LP ) . Rex switches " Sword Arm of Dragon " to Defense Position . Turn 11 : Joey Joey draws . " Flame Swordsman " attacks " Sword Arm of Dragon " . " Sword Arm of Dragon " loses its Field Power Bonus ( " Sword Arm of Dragon " : 2275 → 1750 / 2639 → 2030 ) . " Flame Swordsman " then destroys " Sword Arm of Dragon " . Turn 12 : Rex Rex draws . He then Sets a monster . Turn 13 : Joey Joey draws . " Flame Swordsman " attacks and destroys Rex ' s Set " Crawling Dragon # 2 " ( 1600 → 2080 / 1200 → 1560 ) . Turn 14 : Rex Rex draws . He then Sets a monster . Turn 15 : Joey Joey draws . " Flame Swordsman " attacks and destroys Rex ' s Set " Uraby " ( 1500 → 1950 / 800 → 1040 ) . Joey Normal Summons " Swamp Battleguard " ( 1800 → 2340 / 1500 → 1950 ) in Attack Position . Turn 16 : Rex Rex draws " Serpent Night Dragon " and subsequently Normal Summons it ( 2350 / 2400 ) in Attack Position . " Serpent Night Dragon " attacks and destroys " Flame Swordsman " ( Joey : 1605 → 1595 LP ) . Turn 17 : Joey Joey draws " Lava Battleguard " and subsequently Normal Summons it ( 1550 → 2015 / 1800 → 2340 ) in Attack Position . " Lava Battleguard " and " Swamp Battleguard " each gain 500 ATK for each of the other on Joey ' s side of the field due to their effects ( " Swamp Battleguard " : 2340 → 2840 / 1500 → 1950 ; " Lava Battleguard " : 2015 → 2515 / 1800 → 2340 ) . Turn 18 : Rex Rex draws . Having not noticed that " Swamp Battleguard " and " Lava Battleguard " gained 500 ATK due to each other ' s presence , Rex uses " Serpent Night Dragon " to attack " Swamp Battleguard " , but " Swamp Battleguard " destroys " Serpent Night Dragon " ( Rex : 1330 → 840 LP ) . Featured cards . The following cards appeared in this episode . Cards in italics debuted here .