Yu - Gi - Oh ! GX - Episode 133 " Friend or Fiend " , known as " Judai VS Scarr , Scout of Dark World " in the Japanese version , is the one hundred and thirty - third episode of the " Yu - Gi - Oh ! GX " anime . It first aired in Japan on April 25 , 2007 and in the US on December 27 , 2007 . Summary . Jaden Yuki ' s group leave the lair of the Winged Beast s and proceeds onward . They end up in an abandoned , mostly destroyed town . A comet is seen in the sky , and this seems to adversely affect Jim Crocodile Cook , though he claims that light just hurt his eyes . As they witness a young boy run out of a building , Jaden again impulsively runs after him without thinking . The boy is cornered by Scarr , Scout of Dark World , who attempts to kill him with some sort of bladed ranged weapon . Jaden volunteers to Duel Scarr in order to save the boy ' s life . Tyranno Hassleberry asks to Duel him instead , but Jaden orders him back . Jaden is hesitant to let anyone else Duel , as he fears they would lose and thus die ( the dub changes this to " sent to the stars " , though death is still heavily implied ) . Jaden defeats Scarr in two turn s . Sir Freed , leader of the Steel Knight Army appears and scolds the boy , Kyle , for running off alone . They hear more figures approaching and Freed urges them to follow him back to the sanctuary , before more of the Dark World Army arrives . At the sanctuary , contained in a hidden cave , Kyle introduces Jaden ' s group to his sister , who then reveals that they are from yet another alternate dimension , and were recently dragged into this one . She reveals that the Dark World Army appears in the legends and folklore of their dimension , but here , they actually exist . An army of knights led by Freed opposed them , but all of them save Freed himself were either captured or killed , leaving only a small group of women , children and the elderly . Jaden questions whether anyone present has seen Jesse Anderson , but no one has . When they decide to leave , Freed requests that they stay until the light of the comet fades , as at that time the Dark World monsters sleep . If they were to leave now , it would compromise the location of Freed ' s sanctuary . At the village , Zure , Knight of Dark World , receives a report from his troops that a prisoner has escaped . The prisoner is chased by members of the Dark World Army , who attempt to Summon " Emissary of the Afterlife " to stop him . The prisoner plays " Justi - Break " , defeating the monsters . He reaches Freed ' s sanctuary , where it ' s revealed he is Kyle ' s father , Rahz . He says the prison camp is located under a cliff near the village , and their comrades still live . When questioned by Jaden , he also claims that was someone there that resembled Jesse . However , his wounds are too great , and Rahz dies . Jaden states he ' ll save Jesse and Freed ' s people . Featured Duel - Jaden Yuki vs . Scarr , Scout of Dark World . Turn 1 : Scarr Scarr draws " Archfiend Soldier " and subsequently Normal Summons it ( 1900 / 1500 ) in Attack Position . He then Sets a card . Turn 2 : Jaden Jaden draws " Polymerization " and subsequently activates it to fuse " Elemental Hero Sparkman " with " Elemental Hero Clayman " in order to Fusion Summon " Elemental Hero Thunder Giant " ( 2400 / 1500 ) in Attack Position . Jaden then activates the effect of " Elemental Hero Thunder Giant " to discard " Elemental Hero Necroshade " and destroy " Archfiend Soldier " ( as the latter ' s original ATK was less than the ATK of " Thunder Giant " ) . " Thunder Giant " then attacks directly ( Scarr 4000 → 1600 ) . Turn 3 : Scarr Scarr draws " Fusion Devourer " and subsequently Normal Summons it ( 1400 / 1200 ) in Attack Position . " Fusion Devourer " then attacks " Elemental Hero Thunder Giant " . Due to the effect of " Fusion Devourer " , the ATK of " Thunder Giant " becomes 0 during the Damage Step only ( " Elemental Hero Thunder Giant " : 2400 → 0 / 1600 ) . " Fusion Devourer " then destroys " Thunder Giant " ( Jaden 4000 → 2600 ) . Scarr activates his face - down " Fake Friendship Treaty " . Now Jaden is forbidden from summoning any monsters that are Level 4 or below . If one of Scarr ' s monsters attack or Jaden takes damage from a card effect controlled by Scarr , " Fake Friendship Treaty " will be destroyed . Scarr then activates " Hurricane Nest " . Now if Jaden Special Summons a monster while " Hurricane Nest " is face - up , Scarr can send one " Special Hurricane " from his hand or Deck to the Graveyard to destroy the Special Summoned monster . Turn 4 : Jaden Jaden draws " Elemental Hero Neos " . He then uses the effect of " Elemental Hero Necroshade " to Normal Summons " Elemental Hero Neos " ( 2500 / 2000 ) in Attack Position without Tributing . Jaden then activates " Neos Force " equipping it to " Neos " and increasing its ATK by 800 ( " Elemental Hero Neos " : 2500 → 3300 / 2000 ) . " Neos " attacks and destroys " Fusion Devourer " ( Scarr 1600 → 0 ) . Featured cards . The following cards appeared in this episode . Cards in italics debuted here .