Yu - Gi - Oh ! GX - Episode 177 " Combo of Terror ! " Zero and Infinity " " is the one hundred and seventy - seventh episode of the " Yu - Gi - Oh ! GX " anime . It first aired Japan on March 5 , 2008 . Summary . Despite the defeat of Nightshroud , the eclipse has not lifted . Jaden and Jesse hear a growling in the distance , and Jaden goes to investigate , while Jesse , still exhausted from the Duel , watches over Yusuke Fujiwara . Jaden hurries to Duel Academy ' s computer core , and sees that no one in Duel Academy or anywhere else has been restored . A voice then tells him that they need to settle this once and for all . He heads back outside , but Jesse and Fujiwara are gone , leaving him alone with Pharaoh and the spirit of Professor Banner . The voice speaks to him again , telling him the final confrontation is at hand . He states that he is Nightshroud and Jaden has only defeated a part of him by beating Fujiwara ( keep in mind that in the Japanese version of previous seasons , Nightshroud ' s name was " Darkness " ) . Nightshroud reveals his true form - a cloaked , skeletal figure , resembling . Banner states he can sense the spirits of many people within the sphere of Darkness behind Nightshroud . Jaden asks if Nightshroud intends to take over the world , and Nightshroud states he has no such desire and only follows the logic and truth of the world . Jaden asks if he thinks it ' s natural for everyone to disappear from existence . Nightshroud confirms this , and states that the World of Darkness represents true peace for many . Nightshroud allows Jaden a look into his world , much as he did for Atticus . Chazz , Syrus and Alexis are shown accepting their failures and Nightshroud states that they have thrown everything away - there is neither hope nor despair in the World of Darkness . Their consciousnesses will fade into one another , and everyone will have " eternal life " . Nightshroud reveals the origins of the universe : in the beginning there was but a single card . The planets and stars were created , and the Earth gave rise to humans , who eventually discovered " Duel Monsters " , which Nightshroud calls " the origin of the world " . Duel Monsters served as a test or a " mirror " of the human soul . Nightshroud compares the human world to the front of a card , with the World of Darkness compared to the back of it . If light remained in the hearts of humans , then peace could be retained on the " front " of the card . However , the hearts of many Duelists became corrupted with darkness , and that darkness seeped into Nightshroud ' s world . In other words , that was what awakened him to begin with . He states it is natural for his world to replace the human world . He describes himself as a " savior " . He also confirms the theory that Sartorius had previously come up with - the events of the previous three years , centered on the island ( and the dimensions ) , served as the final catalyst needed . It is from the darkness of humans that Nightshroud ' s power derives from , and each human that misuses Duel Monsters causes his power to grow . Jaden states he acquired his powers of darkness to combat ones like Nightshroud . Nightshroud describes Jaden as a " foreign object " , one who has both a human soul and a Duel Monster soul within him . He states that Jaden is not suitable to be absorbed into his world and thus should be eliminated . Jaden tells him he will not let Nightshroud complete his task , and thus Nightshroud declares he ' ll defeat Jaden using Duel Monsters - the " origin of the world " . Jaden activates his Duel Disk , while five wings sprout of Nightshroud ' s back - each with a Monster Card Zone and a Spell & Trap Card Zone . Nightshroud plays the " Darkness " Field Spell Card , which lets him Set five cards from his hand and Deck to his Spell & Trap Card Zones . Jaden attacks , and Nightshroud activates " Zero " , which also activates " Infinity " . With these in play , he may activate any card that sits in the zones between the two . He states that between Zero and Infinity , there is only Darkness . He activates " Darkness 1 " , destroy ing Jaden ' s " Elemental Hero Sparkman " . Jaden quickly uses " Relationship " to Summon an " Elemental Hero " with equal ATK to the destroyed " Sparkman " , and choose " Elemental Hero Necroshade " to defend himself . At the end of each turn , Nightshroud randomly rearranges his Spell and Trap Cards and Sets them face - down again . Nightshroud activates the effect of his " Darkness Eye " to Summon " Darkness Destroyer " without a Tribute . Jaden believes that he ' ll be safe due to Nightshroud ' s cards being randomly re - Set , but to his and Professor Banner ' s horror Nightshroud not only successfully activates his Trap Card s , but they are in the worst position possible ; all three Traps are between " Zero " and " Infinity " . The stacked boosts of " Darkness 2 " increases the ATK of " Darkness Destroyer " to a staggering 5300 ; and it also has they ability to attack twice and inflict piercing damage . Jaden negates the first attack with " Hero Barrier " , but the remaining attack of " Darkness Destroyer " destroys " Necroshade " and takes Jaden down to 500 Life Points with one shot . Nightshroud tells Jaden to give up , as there is no one left to believe in his ability to fight . The spirit of Yubel appears and reminds Jaden that he ' s not alone - she is always with him . With the effect of " Necroshade " in the Graveyard , Jaden Summons " Elemental Hero Neos " without a sacrifice . " Darkness Eye " glows again , and Yubel tells Jaden to act now . He does , and plays " Effect Shut " to destroy " Darkness Eye " since it activated its effect . Yubel explains that the effect of " Darkness Eye " allowed Nightshroud to confirm his Set cards and accuses him of using a cheap strategy for someone claiing to be a god . Jaden attacks , and Nightshroud cannot check his Set Spell and Trap Cards , so he activates a random one - which ends up being " Darkness 1 " , which is useless without activating " Zero " and " Infinity " first , and thus " Darkness Destroyer " is destroyed and Nightshroud reduced to 3800 Life Points . Nightshroud states that if Yubel is giving Jaden support , he ' ll have to sever that connection . He uses the effect of " Darkness Outsider " to Special Summon " Yubel " to his own field . Nightshroud attacks with " Yubel " , but Jaden activates " Astral Shift " , allowing him to turn the attack into a direct attack , therefore taking none of the Battle Damage that Yubel ' s effect would have transferred to him , and also allowing him to draw a card that he is shocked to see . Nightshroud proceeds to firm up his defenses by mimicking " Neos " with his " Darkness Slime " . Jaden plays " Super Polymerization " , discard ing " Winged Kuriboh " to fuse " Neos " with " Yubel " to Fusion Summon " Neos Wiseman " . He uses its powerful effect to turn the Duel around , destroying " Darkness Slime " and restoring his Life Points by the DEF of " Darkness Slime " to 3000 , while taking Nightshroud ' s down to 1800 by inflicting the ATK of " Darkness Slime " to him . Featured Duel : Jaden Yuki vs . Nightshroud . Turn 1 : Nightshroud Nightshroud draws " Darkness " . He then Normal Summon s " Darkness Eye " ( 0 / 1000 ) in Attack Position . Nightshroud then activates " Darkness " , which lets him randomly Set " Zero " , " Infinity " , " Darkness 1 " , " Darkness 2 " and " Darkness 3 " from his hand and Deck to his Spell & Trap Card Zone . He Sets all five from his Deck . " Darkness " forbids Nightshroud from looking at his set cards , but the first effect of " Darkness Eye " allows Nightshroud to bypass this effect . Also during each End Phase , all face - up Trap Cards on Nightshroud ' s side of the field will be reset and if that is done , the set Traps will be randomly rearranged . Turn 2 : Jaden Jaden draws " Elemental Hero Sparkman " and subsequently Normal Summons it ( 1600 / 1400 ) in Attack Position . " Sparkman " attacks " Darkness Eye " , but Nightshroud activates his face - down " Zero " , which lets him activate his face - down " Infinity " , which lets him activate all his face - down cards that are in the zone ( s ) between the two : " Darkness 1 " . The effect of " Darkness 1 " activates , destroying " Sparkman " . Jaden then activates " Relationship " to Special Summon " Elemental Hero Necroshade " ( 1600 / 1800 ) in Defense Position ( as the ATK of " Necroshade " is equal to the ATK of " Sparkman " ) . Jaden Set s a card . On Jaden ' s End Phase , Nightshroud ' s Traps are reset and randomly rearranged due to the effect of " Darkness " . Turn 3 : Nightshroud Nightshroud draws " Darkness Destroyer " . During Nightshroud ' s Standby Phase , he activates the second effect of " Darkness Eye " to allow himself to Normal Summon " Darkness Destroyer " ( 2300 / 2100 ) in Attack Position without Tributing . He then activates his face - down " Zero " , which lets him activate his face - down " Infinity " , which lets him activate the three face - down cards in between the two - " Darkness 2 " , " Darkness 1 " and " Darkness 3 " . Only the effect of " Darkness 2 " activates , so the ATK of " Darkness Destroyer " increases by 1000 ( " Darkness Destroyer " : 2300 → 3300 / 2100 ) and then it gains 1000 ATK for every other face - up " Darkness " card ( " Darkness Destroyer " : 3300 →4300 → 5300 / 2100 ) . " Darkness Destroyer " then attacks " Necroshade " , but Jaden activates his face - down " Hero Barrier " to negate the attack . " Darkness Destroyer " then attacks and destroys " Necroshade " ( as it can attack twice during each Battle Phase ) . " Darkness Destroyer " then inflicts piercing damage to Jaden ( Jaden 4000 → 500 ) . On Nightshroud ' s End Phase , the effect of " Darkness 2 " expires ( " Darkness Destroyer " : 5300 → 2300 / 2100 ) and Nightshroud ' s Traps are reset and randomly rearranged due to the effect of " Darkness " . Turn 4 : Jaden Jaden draws " Elemental Hero Neos " . He then uses the effect of " Necroshade " from his Graveyard in order to Normal Summon " Elemental Hero Neos " ( 2500 / 2000 ) in Attack Position without Tributing . Nightshroud activates the effect of " Darkness Eye " to look at his set cards , but Jaden activates " Effect Shut " to negate the activation of the effect of " Darkness Eye " and destroy it . " Neos " attacks " Darkness Destroyer " , but Nightshroud activates a random face - down Trap - it ends up being " Darkness 1 " , but it has no effect unless it is activated via " Infinity " when it is between it and " Zero " . " Neos " then destroys " Darkness Destroyer " ( Nightshroud 4000 → 3800 ) . Jaden sets a card . On Jaden ' s End Phase , Nightshroud ' s Traps are reset and randomly rearranged due to the effect of " Darkness " . Turn 5 : Nightshroud Nightshroud draws " Darkness Seed " . He then Normal Summons " Darkness Outsider " ( 0 / 0 ) in Attack Position . Nightshroud then activates the effect of " Darkness Outsider " to discard " Darkness Seed " and declare a Monster Card Name . If that card is in Jaden ' s Deck , Nightshroud can Special Summon it under his control . Nightshroud declares " Yubel " , so the latter monster is Special Summoned from Jaden ' s Deck to Nightshroud ' s side of the field ( 0 / 0 ) in Attack Position . Nightshroud then activates the first effect of " Darkness Seed " , which will allow Nightshroud to Special Summon " Darkness Seed " from his Graveyard during his second Standby Phase after the effect ' s activation . " Yubel " attacks " Neos " ( Nightshroud plans to use the second effect of " Yubel " to make Jaden take the Battle Damage that he would take ) , but Jaden activates his face - down " Astral Shift " to change the attack to a direct attack and draw a card ( " Super Polymerization " ) . Nightshroud then Special Summons " Darkness Slime " from his hand ( 0 / 0 ) in Defense Position as the total ATK of all of Nightshroud ' s face - up monsters equal 0 . Nightshroud then activates the second effect of " Darkness Slime " to target " Neos " and make the ATK of " Darkness Slime " the same as the DEF of " Neos " as well as make the DEF of " Darkness Slime " the same as the ATK of " Neos " ( " Darkness Slime " : 0 → 2000 / 0 → 2500 ) . On Nightshroud ' s End Phase , he Tributes " Darkness Outsider " to keep " Yubel " in play . Turn 6 : Jaden Jaden draws . He then activates " Super Polymerization " to discard " Winged Kuriboh " and fuse " Neos " with " Yubel " in order to Fusion Summon " Neos Wiseman " ( 3000 / 3000 ) in Attack Position . " Neos Wiseman " attacks and destroys " Darkness Slime " . The second effect of " Neos Wiseman " then activates , inflicting damage to Nightshroud equal to the ATK of " Darkness Slime " and increasing Jaden ' s Life Points by the DEF of " Darkness Slime " ( Jaden 500 → 3000 , Nightshroud 3800 → 1800 ) . " Duel continues in the next episode " . Featured cards . The following cards appeared in this episode . Cards in italics debuted here .