Yu - Gi - Oh ! GX - Episode 171 " The Final Stage of Destiny ! Magma Neos Versus The Dark Ruler " is the one hundred and seventy - first episode of the " Yu - Gi - Oh ! GX " anime . It first aired in Japan on January 23 , 2008 . Summary . Jaden suggests he and Sartorius stop their Duel and find a way to save Sarina . Sartorius responds that it ' s too late for that . He reveals that after he lost the ability to see the future , he thought his life would be peaceful - but he was wrong . After Sarina was captured , Sartorius determined that he needed to search for even greater power than what he had lost , for if he doesn ' t , he can ' t protect his loved ones . Sartorius believes he has the Duel the won with " Tour of Doom " and " Sowing of the Fool " , but Jaden bypasses the effects of " Tour of Doom " by Summoning monsters during Sartorius ' turn instead of his own . He plays " The Flute of Summoning Kuriboh " to Special Summon " Winged Kuriboh " and plays " Transcendent Wings " to evolve it into " Winged Kuriboh LV10 " and destroying Sartorius ' monsters . Sartorius has a backup plan though , he Summons " Arcana Force EX - The Dark Ruler " . With it ' s upright effect , it can attack twice per Battle Phase and gains the Piercing ability . Combined with " Sowing of the Fool " , Jaden loses another thirteen cards from the top of his Deck . At the beginning of Jaden ' s next turn , Sarina manages to psychically contact him , though he has to use Yubel ' s powers in order to see her . However , Sartorius himself cannot see her , and yells for Jaden to take his turn . Sarina urges Jaden to use his power to save Sartorius - not her . If Jaden wins the Duel , she should be able to contact Sartorious once the darkness around his heart is dispersed . At Duel Academy , Jaden ' s friends are troubled . Each of them has Dueled at least ten people today as part of the Graduation Duels , but none of them can remember who they Dueled , nor locate their names on Duel Academy ' s roster - which appears much smaller than it should . They can all remember there being more students , but nothing about them . It ' s nighttime now , and Tyranno Hassleberry is still in the forest searching for Daigo Sorano and having no clue why Jaden wanted Hassleberry to find him in the first place . Since Jaden cannot target " The Fool " with his own card effects , he devises a plan to destroy it . He Summons " Miracle Flipper " using " A Hero Emerges " , and when it ' s destroyed , it moves to Sartorius ' field . Jaden then activates " Hero Blast " , using it to destroy " Miracle Flipper " , who can destroy a monster on the opponent ' s field if it is itself destroyed via a Spell or Trap effect . Since " Miracle Flipper " was on Sartorius ' field , he must activate the effect , as and as " The Fool " is the only monster on Jaden ' s field , he must destroy it , as " Miracle Flipper ' s " effect is mandatory . Without " The Fool " on Jaden ' s field , Sartorius cannot select the position of cards , and it is he that is forced to discard thirteen cards from the top of his Deck via " Sowing of the Fool " . Sartorius ponders if the destruction of " The Fool " has ruined his destiny , with Jaden responding that Sartorius should know better than anyone that no power can control destiny . Sartorius counters by telling Jaden that he should know the allure of power more than anyone - having been controlled by The Supreme King . Jaden responds that such power no longer seduces him - and that power shouldn ' t be used to fulfilled your own desire , as his eyes turn to the bichromatic style of Yubel once more . Now able to Summon monsters , as " Tour of Doom " landed upside down , Jaden defeats Sartorius using " Elemental Hero Magma Neos " and " Reverse of Neos " attack directly with " Elemental Hero Neos " . With that , Sartorius begins to fade into the World of Darkness , and Sarina appears , with both of them thanking Jaden for freeing them from the pain of reality . However , the explosives around the building begin to go off as Jaden searches for a way out . Featured Duel : Jaden Yuki vs . Sartorius . " Duel continues from the previous episode " . Turn 6 : Jaden Jaden draws " Transcendent Wings " . On Jaden ' s Standby Phase , " Tour of Doom " rotates again and Sartorius uses the third effect of " Arcana Force 0 - The Fool " to make " Tour of Doom " land upright . Jaden Set s a card . Turn 7 : Sartorius Sartorius draws . " Arcana Force VII - The Chariot " attacks " Arcana Force 0 - The Fool " , but Jaden activates his face - down " The Flute of Summoning Kuriboh " to Special Summon " Winged Kuriboh " ( 300 / 200 ) from his Deck in Defense Position . Jaden then activate s his face - down " Transcendent Wings " to discard " Elemental Hero Sparkman " and " Polymerization " and send " Winged Kuriboh " to the Graveyard in order to Special Summon " Winged Kuriboh LV10 " ( 300 / 200 ) in Attack Position . Jaden then activates the effect of " Winged Kuriboh LV10 " to Tribute the latter and destroy all of Sartorius ' face - up monsters and inflict damage to Sartorius equal to their combined original ATK ( Sartorius 4000 → 1000 ) . Sartorius Normal Summon s " Arcana Force VI - The Lovers " ( 1600 / 1600 ) in Attack Position . Sartorius uses the third effect of " The Fool " to make " The Lovers " land upright , so now " The Lovers " can count as two Tributes for the summon of an Arcana Force monster . Sartorius then activates " Reverse Reborn " to Special Summon " Arcana Force VII - The Chariot " from his Graveyard ( 1700 / 1700 ) in Attack Position with its upside down effect automatically applied . Sartorius then Tributes " The Lovers " and " The Chariot " in order to Special Summon " Arcana Force EX - The Dark Ruler " ( 4000 / 4000 ) in Attack Position . Sartorius then uses the third effect of " The Fool " to make " The Dark Ruler " land upright . Now " The Dark Ruler " may attack twice during each Battle Phase , but if it does so this way , it will be switched to Defense Position at the end of the Battle Phase . Sartorius activates the effect of " Sowing of the Fool " and targets " The Dark Ruler " for its effect . Sartorius then uses the third effect of " The Fool " to make " Sowing of the Fool " land upside down , so " Sowing of the Fool " applies to Jaden ( Jaden sends " Elemental Hero Bubbleman " , " Elemental Hero Burstinatrix " , " O - Oversoul " , " Elemental Hero Clayman " , " Elemental Hero Bladedge " , " E - Emergency Call " , " Neos Force " , " Mirror Gate " , " Instant Fusion " , " Skyscraper " , " Necro Gardna " , " Double Fusion " and Neo - Spacian Grand Mole " to the Graveyard ) . Turn 8 : Jaden Jaden draws " Hero Blast " . On Jaden ' s Standby Phase , " Tour of Doom " rotates again and Sartorius uses the third effect of " Arcana Force 0 - The Fool " to make " Tour of Doom " land upright . Jaden sets two cards . Turn 9 : Sartorius Sartorius draws . " Arcana Force EX - The Dark Ruler " attacks " The Fool " , but Jaden activates his face - down " A Hero Emerges " to make Sartorius select one random card in his hand . If it ' s a monster , Jaden can Special Summon it . As Jaden only has " Miracle Flipper " in his hand , he Special Summons " Miracle Flipper " ( 300 / 500 ) in Defense Position . Due to the first effect of " Miracle Flipper " , the attack is redirected to it instead , destroying it . The second effect of " Miracle Flipper " activates , Special Summoning itself from Jaden ' s Graveyard ( 300 / 500 ) to Sartorius ' side of the field in Defense Position . " The Dark Ruler " attacks " The Fool " again , but Jaden removes from play " Necro Gardna " from his Graveyard to negate the attack . At the end of the Battle Phase , " The Dark Ruler " switches itself to Defense Position . Jaden activates his face - down " Hero Blast " to add " Elemental HERO Sparkman " from his Graveyard to his hand and destroy " Miracle Flipper " . Since " Miracle Flipper " was destroyed via a Spell or Trap effect , its third effect activates , destroying " The Fool " . Sartorius activates the effect of " Sowing of the Fool " and targets " The Dark Ruler " for its effect . " Sowing of the Fool " rotates and lands upright , so " Sowing of the Fool " applies to Sartorius ( Sartorius sends " Arcana Force I - The Magician " , " Ace of Sword " , " Intervention of Fate " , " Arcana Force IV - The Emperor " , " Necro Sacrifice " , " Arcana Force XV - The Fiend " , " Arcana Force XXI - The World " , " Vision " , " Emperor ' s Staff " , " Arcanatic Doomscythe " , " Future Vision " , " Suit of Sword X " and " Arcana Force XVIII - The Moon " to the Graveyard ) . Sartorius sets two cards . Turn 10 : Jaden Jaden draws " Fifth Hope " . On Jaden ' s Standby Phase , " Tour of Doom " rotates and lands upside - down , so Sartorius cannot Summon during his next turn . Jaden activates " Fifth Hope " to return " Elemental Hero Avian " , " Elemental Hero Burstinatrix " , " Elemental Hero Bubbleman " , " Clayman " and " Bladedge " from his Graveyard to his Deck and draw two cards . Sartorius activates his face - down " Reversal of Fate " to switch the position of " The Dark Ruler " . Now if " The Dark Ruler " is destroyed , all cards on the field will be destroyed . Sartorius then activates his face - down " Arcana Call " to remove from play " The Fool " from Jaden ' s Graveyard and grant " The Dark Ruler " the upside down effects of " The Fool " . Now " The Dark Ruler " can negate all of Jaden ' s card effects that target or affect it and destroy them . Jaden activates " Miracle Contact " to return " Elemental Hero Neos " , " Grand Mole " and " Neo - Spacian Flare Scarab " from his Graveyard to his Deck in order to Special Summon " Elemental Hero Magma Neos " ( 3000 / 2500 ) in Attack Position . Due to the effect of " Magma Neos " , it gains 400 ATK for each card on the field . There are currently four ( " Magma Neos " : 3000 → 4600 / 2500 ) . " Magma Neos " attacks and destroys " The Dark Ruler " . The upside down effect of " The Dark Ruler " activates , destroying all cards on the field . Sartorius explains that during his next Standby Phase , he can Special Summon " The Dark Ruler " from his Graveyard . Jaden then activates " Reverse of Neos " to Special Summon " Elemental Hero Neos from his Deck in Attack Position with 1000 more ATK ( 2500 → 3500 / 2000 ) . " Neos " attacks directly ( Sartorius 1000 → 0 ) . Featured cards . The following cards appeared in this episode . Cards in italics debuted here .