Seto Kaiba and Ishizu Ishtar ' s Duel ( manga ) Seto Kaiba and Ishizu Ishtar faced each other in the last Duel of the Battle City quarterfinals , in the " Yu - Gi - Oh ! " manga . Events . Prior . Ishizu ' s brother Marik Ishtar had become corrupted by he evil of his other self Dark Marik . She hoped to defeat Dark Marik in order to save her brother . The Millennium Tauk gave Ishizu the ability to see into the future . She foresaw a turn - by - turn account of her Duel with Kaiba , which resulted in Kaiba ' s loss due to his usage of " The God of the Obelisk " . As a member of the Egyptian supreme council of antiquities , Ishizu possessed that card and made plans to use her knowledge of the future to face Dark Marik . She accepted that using her power to help win a Duel is ordinarily unacceptable , but was willing to give her life to the gods as punishment , since it gave her the chance to save Marik . Ishizu passed " The God of the Obelisk " on to Kaiba , requesting that he use it to acquire the two stolen God cards by hosting a tournament , which would attract their thieves . When Kaiba asked what would happen if he refused to return the God cards to her , she replied that she trusted him . Secretly she gave it to him in anticipation of it leading to his defeat , after which she would reacquire the card and face Dark Marik later in the tournament . Having the power of foresight , Ishizu knew the quarterfinal ordering in advance and as such did not attend the Ultimate Bingo draws to determine the player match - ups . Since she was not present for the previous quarterfinals , none of the other contestants knew her identity until she emerged to face Kaiba in the last quarterfinal . Her appearance came as a surprise to other contenders and their companions ; Kaiba , whom she had entrusted with " Obelisk " , Dark Yugi and Anzu Mazaki , who had met her at the museum , where she influenced Dark Yugi ' s decision to enter the tournament , her brother Marik and his other self Dark Marik , causing a momentary lapse in Dark Marik ' s suppression of Marik ' s ego . Ishizu warned Kaiba that he was fated to lose the Duel . But Kaiba believed his future to be controlled by the power of cards , rather than fate and expected Ishizu to suffer an ironic defeat from the power she had given to him . Duel . 1st turn : Kaiba Kaiba Summon ed " Vorse Raider " and Set " Crush Card " . Anzu asked Dark Yugi if Ishizu ' s ability to see into the future meant Kaiba could not win . Like Kaiba , Dark Yugi felt if he was in that position , he would not accept defeat , and urged Kaiba to surpass fate . 2nd turn : Ishizu Ishizu Summoned " Keldo " in Defense Mode . Ishizu activated " Michizure of Doom " , causing both players to show their hand s , while their opponent chose two cards to discard . Kaiba was annoyed by having his hand exposed and vowed not to forget this humiliation . Ishizu chose for him to discard " Polymerization " and " Kaiser Glider " , which Kaiba felt could have been worse , since neither card was of much use this early in the Duel . He opted not to hold back and make Ishizu discard her best cards , so he chose " Monster Reborn " and " Revival Magic " . The final effect of " Michizure of Doom " caused both players to shuffle the remainder of their hand back into their Deck and draw the same number of cards that they had in the beginning . Dark Marik recognized Ishizu ' s strategy as one she had used to defeat Marik in a previous Duel . He commended the strategy and thought he was the only one capable of overcoming it . 3rd turn : Kaiba " Vorse Raider " attack ed and destroyed " Keldo " . Kaiba continued to mock Ishizu ' s claims to know the future and expressed that he would teach her that the future obeys him . Kaiba Set " Shrink " , planning on using it to lower the ATK of " Vorse Raider " , allowing him to use " Crush Card " to infect Ishizu ' s Deck . 4th turn : Ishizu Ishizu was aware of Kaiba ' s " Crush Card " strategy , but played on . She Summoned " Mudora " and equipped it with " Sword of Dogra " ( " Mudora " : 1500 → 2000 ATK ) . " Mudora " attacked " Vorse Raider " , but Kaiba activated " Shrink " , targeting " Vorse Raider " ( " Vorse Raider " : 1900 → 950 ATK ) . With less than 1000 ATK , " Vorse Raider " became a carrier for the " Crush Card " virus . " Mudora " destroyed " Vorse Raider " ( Kaiba : 4000 → 2950 Life Points ) and the virus destroyed all monsters in Ishizu ' s Deck and field with 1500 or more ATK . Unperturbed , Ishizu complied and placed her Monster Cards in the Graveyard . Kaiba acknowledged that he lost a monster and some Life Points , but considered it to be worth it for the damage it did to Ishizu ' s Deck . Ishizu Set " Exchange of the Spirit " and ended her turn . Dark Marik silently laughed at how Kaiba was making it too easy for Ishizu , by playing right into her hands . 5th turn : Kaiba Kaiba could feel God ' s pulse coming from his Deck and drew " The God of the Obelisk " , as he expected . Ishizu also knew he had drawn " Obelisk " , but thought it would not bring him victory and it would return to her after the Duel . Beginning to build up the Sacrifices needed to Summon " Obelisk " , Kaiba Summoned " Des Feral Imp " and used it to attack Ishizu directly ( Ishizu : 4000 → 2400 Life Points ) . Kaiba stated that the future is infinite and the past was a string of footprints of no significance to him . And the fact that Ishizu gave him " Obelisk " was also of no meaning to him , since he believed that the God had chosen him . Continuing with his Deck - destruction strategy , Kaiba activated " Virus Cannon " , sending ten Spell Card s from Ishizu ' s Deck to the Graveyard . He laughed at how her Deck was now destroyed , but Ishizu disagreed and claimed to have foreseen the situation . She insisted that Kaiba was the one who had fallen for a trap and activated " Exchange of the Spirit " , which switched the contents of each players ' Deck with their respective Graveyard . This left Kaiba with a Deck of six cards ; " Kaiser Glider " , " Polymerization " , " Crush Card " , " Vorse Raider " , " Shrink " and " Virus Cannon " . He worried that he would lose in seven turns , having no cards to draw and that most of his strategies were now off - limits , while Ishizu ' s useful cards had returned to her Deck . 6th turn : Ishizu Jonouchi thought that Kaiba was now done for . Anzu was more convinced that Ishizu could see the future and figured if that was true , there was no way Kaiba could win . " Ishizu Set " Muko " and Summoned " Kelbek " . " 7th turn : Kaiba Kaiba redrew " Virus Cannon " , but Ishizu activated " Muko " forcing him to send it to the Graveyard . As he sent it to the Graveyard , he thought about how Ishizu now knew the contents of his Deck and has ways to counter his Virus Card s . " Kaiba chose not to attack , which seemed strange to Jonouchi . Ishizu knew he had abstained , because he wanted her to provide monsters for him to Sacrifice with " Soul Exchange " to Summon " The God of the Obelisk " . " 8th turn : Ishizu Ishizu Summoned " Zolga " and got it to attack and destroy " Des Feral Imp " ( Kaiba : 2950 → 2850 Life Points ) . She then attacked directly with " Kelbek " ( Kaiba : 2850 → 1350 Life Points ) . She Set another " Muko " and ended her turn . 9th turn : Kaiba Kaiba was wary that the card Ishizu Set could be another Trap like the one that disposed of " Virus Cannon " , but with no other choice , he drew and had his suspicions confirmed , as Ishizu made him discard it with her second " Muko " . He noted that Ishizu had two monsters on her side and Set " Soul Exchange " , hoping she would play another next turn . 10th turn : Ishizu Since Kaiba had no monsters , Jonouchi expected the Duel to end when Ishizu attacked . Dark Yugi suspected Kaiba ' s face - down card was " Soul Exchange " and knew that Ishizu would also be aware of this . Ishizu Set " Blast Held by a Tribute " , secretly planting its bomb in " Zolga " . She believed it would be the final Trap Kaiba would fall into . After " Zolga " is Sacrificed , the Summoned monster will be destroyed on attacking , even if it is a God , and its controller will lose Life Points equal to its attack . She Summoned " Agido " and Kaiba saw his chance . Since she now had three monsters , " Kelbek " , " Zolga " and " Agido " , he was able to activate " Soul Exchange " , Sacrificing the three to Summon " The God of Obelisk " . Ishizu ended her turn , confident Kaiba had fallen for her trap . 11th turn : Kaiba Kaiba was unsure about attacking . With the Millennium Tauk ' s prediction of Kaiba ' s defeat , Dark Yugi had a feeling that " Obelisk " attacking would not defeat Ishizu and thought that Kaiba felt the same . Ishizu noted Kaiba ' s reluctance , but thought Kaiba had no other options . Dark Marik was certain Kaiba was about to lose and prepared to leave the arena . He knew that Marik was interested in knowing what relationship Kaiba had to the Millennium Rod , having seen his lookalike , Seto , holding the rod on the Tablet of Memories . As he walked away , the Millennium Rod emitted a strange sensation . Kaiba began to declare his attack , but the Millennium Rod triggered something inside him . He cancelled the attack and saw a flash of light before him . He was presented with a vision , first showing of the Tablet of Memories and then showing Priest Seto holding Kisara before a stone slab , depicting The White Dragon , which Kaiba recognized as " Blue - Eyes White Dragon " . Everyone was surprised by Kaiba ' s attack cancellation . Dark Marik wondered if Seto ' s memories had been sealed in the Millennium Rod . Deciding that he trusted the light , Kaiba resolved to Summon " Blue - Eyes White Dragon " . He activated " Silent Doom " , Summoning " Gadget Soldier " from his Graveyard in Defense Mode . He proceeded to Sacrifice it and " Obelisk " to Summon " Blue - Eyes White Dragon " . His opponent and spectators were surprised to see a God being used as a sacrifice and Ishizu noted that this changed the future . Kaiba asked Ishizu if " Blue - Eyes White Dragon " was in the future she had seen . As she stood in silence , stunned , he answered for her , saying that it was not , because this was his future . " Blue - Eyes " attacked Ishizu directly ( Ishizu : 2400 → 0 Life Points ) , winning the Duel for Kaiba . Aftermath . Ishizu accepted her defeat and congratulated Kaiba . Having changed the future through the Duel , she declared him to now be the true owner of his God card . Kaiba stated that he believed there were things in people ' s hearts capable of surpassing the gods . Having seen a future clouded in despair with the Millennium Tauk , Ishizu was relieved to have learned from the Duel that people can change the future and that there is the light of hope . Kaiba replied that a person who just follows the future has no hope . Cards used . The following cards appeared in this Duel . Virus Card s are listed under Trap Card s . Equip Card s are listed under Spell Card s .