Yu - Gi - Oh ! GX - Episode 108 " Hanging with Axel : Part 1 " , known as " Professor Cobra ' s Assassin " in the Japanese version , is the one hundred and eighth episode of the " Yu - Gi - Oh ! GX " anime . It first aired in Japan on November 1 , 2006 , and in the US on May 5 , 2007 . Summary . Jaden and Jesse Anderson go to investigate something they heard while opening new packs of cards at the Slifer Red dorm . Axel Brodie is training in the forest , hanging upside - down and suspended over a cliff . He recalls his time with his father years ago , who taught him to treat life as being in battle all the time - so that he would be prepared for life and death situations whenever they arise . He sees Jaden and Jesse chasing someone and they confront him , however Jesse realize that Axel was not the culprit and tells Jaden that Axel is Thelonious Viper ' s student . The next day , Thelonious Viper gives every student a Bio - Band , which he had previously given to Jaden and Jesse before their Duel . He states they will be used during Survival Duels and that such Duels will be conducted without restrictions relating to dorm color or grade . He states that Duel data collected from the bands is sent to a terminal , where Viper can analyze it . Viper later tells Axel that he wants his first opponent to be Jaden . He says that he must make Jaden play seriously and use all of his power - even if it means that Axel would lose . At the Obelisk Blue dorm , Adrian Gecko scans his Bio - Band and sends the data to a submarine near Duel Academy . His contact in the sub warns him not to take his eyes off of Viper . Thelonious Viper is now entering his lab again , and Adrian follows him , attempting to go in after him , but the door refuses to open for him . Viper comments that he believes that Jaden has more Duel energy than anyone else . Syrus Truesdale becomes unsure of the survival duels and goes to confront Jaden about them . Jaden is unable to give an answer , and as Syrus runs off only Jesse appears to worry about the things he said . Syrus begins walking around the grounds and vows to Duel the first person he comes across - it ends up being Axel Brodie , whom he challenges . Upon hearing that Syrus is Jaden ' s best friend , Axel ties him up and suspends him from device he had previously been training on . Meanwhile , back to the Slifer dorm , Jesse and Hassleberry are argueing over Hassleberry ' s desk when Winged Kuriboh informs Jaden what has happened , and he , Jesse and Tyranno Hassleberry rush to Syrus ' aide . Axel challenges Jaden and Jaden accepts in order to save Syrus . Featured Duel : Jaden Yuki vs . Axel Brodie . Turn 1 : Jaden Jaden draws " Elemental Mirage " . Jaden ' s hand contains " Polymerization " , " Elemental Hero Avian " , " Elemental Hero Burstinatrix " , " De - Fusion " , and " Elemental Hero Neos " . Jaden then activate s " Polymerization " to fuse " Elemental Hero Avian " with " Elemental Hero Burstinatrix " in order to Fusion Summon " Elemental Hero Flame Wingman " ( 2100 / 1200 ) in Attack Position . Jaden then Set s two cards . Turn 2 : Axel Axel draws " Blaze Accelerator " and subsequently activates it . Now Axel , during each of his Main Phases , can send 1 Pyro - type monster with 500 or less ATK from his hand to the Graveyard to destroy one monster on Jaden ' s side of the field . If Axel activates the effect of " Blaze Accelerator " , he will be forbidden from attacking the turn he activates this effect . Axel then activates the effect of " Blaze Accelerator " to send " Volcanic Shell " from his hand to the Graveyard and destroy " Flame Wingman " , but Jaden activates his face - down " De - Fusion " to return " Flame Wingman " to his Fusion Deck and Special Summon " Avian " ( 1000 / 1000 ) and " Burstinatrix " ( 1200 / 800 ) from his Graveyard in Attack Position . Since " Volcanic Shell " is in his Graveyard , Axel activates the effect of " Volcanic Shell " to pay 500 Life Points ( Axel 4000 → 3500 ) and add another " Volcanic Shell " from his Deck to his hand . Axel then activates the effect of " Blaze Accelerator " to send " Volcanic Shell " from his hand to the Graveyard and destroy " Burstinatrix " . Axel then Sets a card ( " Firewall " ) . " Duel continues in the next episode " . Featured cards . The following cards appeared in this episode . Cards in italics debuted here .