Diabound ( manga ) Diabound is a character in the " Yu - Gi - Oh ! " manga . It was Bakura , King of Thieves ' s " ka " , created by the spirits of the slaughtered town of Kul Elna desiring revenge and it had the power to absorb the abilities of other " ka " it defeated . Its form evolved as its powers grew . Biography . Ancient Egypt . Diabound is first Summoned when Bakura entered the pharaoh ' s palace in his first attempt to take the Millennium Items . Everyone present is shocked by the strength of Bakura ' s hatred and that Diabound is actually a holy spirit , which Bakura claims is due to his loyalty to his cause . Seto ignores the spirit ' s strength and attempts to seal Diabound in a stone tablet with his Millennium Rod , but Diabound breaks free with ease . Unfazed , Seto instead Summons " Galestgoras " to Duel Diabound . Galestgoras battles well , but Bakura uses the special power of Diabound to shatter the tablet that Summoned Galestgoras . He then has Diabound engage in battle with the other " ka " Summoned by the Priests and easily overpowers them . Atem , after reclaiming his father , Akhenamkhanen ' s mummy from Bakura , Summons one of the three gods from the Shrine of Wedju , " The God of the Obelisk " and soon Bakura finds himself on the receiving end of an easy overpowering . Despite his loss , Diabound is able to survive and Bakura escapes . Bakura later Summons Diabound when Mahado , bearer of the Millennium Ring , leads him into Akhenamkhanen ' s tomb to Duel . Despite Diabound having evolved into a new form due to Bakura ' s hatred becoming stronger , inside the tomb , Mahado ' s " Illusion Magician " is able to fight at its full power and the two battle evenly . Bakura eventually triggers one of the tomb ' s traps and kills Mahado , but the Priest fuses his " ba " with the Magus of Illusion into the Dark Magician and attempts to destroy Diabound for good . Bakura survives again , and infiltrating the Shrine of Wedju to attack Akhenaden , he has Diabound , whose form has evolved yet again with the acquisition of the Millennium Ring , use its phasing power to destroy the stone tablets before Akhenaden can Summon them . When he flees from the Shrine , he Summons Diabound as the Pharaoh pursues him with " Slifer the Sky Dragon " , another of the gods from the Shrine of Wedju . Despite its power - up , Slifer retains the advantage , until Bakura begins attacking the townspeople , forcing Slifer to defend them , not only taking the attacks but also restricting its movement . Diabound hides with its power and nearly kills Atem , but the priests intervene and rescue him . Diabound defeats Slifer when Atem sacrifices it for a chance to win , but is saved when Bakura has Illushu intercept the attack of Duos . Bakura takes the Millennium Pendant from Atem and leaves him for dead after throwing him from a cliff . Atem survives , coming to Kul Elna to reclaim the Puzzle and defeat Bakura . Bakura Summons the again - evolved Diabound , and the Pharaoh is defended by Mahado in the form of Dark Magician . With Diabound handicapped protecting the Millennium Stone , the battle proves to be largely even , but Diabound resists repeated attempts to slay it and phases into the walls . Shada ' s attempts to find it prove unsuccessful until Atem has Mahado open up holes in the ceiling to let light into the chamber and reveal Diabound . Diabound is able to survive when Bakura has the spirits of Kul Elna form a protective shield around it . The Priests arrive to save Atem after Shada is injured and Bakura takes the Millennium Key , causing Diabound to grow in strength . They Summon their " ka " , but Diabound once again overpowers them until Kalim has the idea to use the Millennium Scale to combine the " ba " of two " ka " , Duos and Curse of Dragon , into Duos Dragon . The fused ka proves to be an equal to Diabound when enhanced by Mahado ' s magic , but is unable to break through the shield . Bakura seizes his chance to kill Kalim and take the Millennium Scale , seperating Duos Dragon , but the attack did indeed break the spirit shield and Mahdo finishes Diabound off with his Dark Magic attack . With Diabound ' s destruction , Bakura slowly dies as well . World of Memories . When Dark Yugi enters the world of his memories to relive the events of his death , he replays his battles with Bakura and Diabound . In a departure from the original events of history , Yugi Mutou reunites with Dark Yugi and replenishes his energy after the destruction of Slifer , allowing the Pharaoh to Summon " The Sun Dragon Ra " and destroy Diabound with its God Phoenix form . The spirit of Akhenaden , claiming to be Zorc Necrophades , then appears to rewind time as the first use of Dark Bakura ' s ability to control time in the Shadow RPG , and Diabound ' s destruction is undone , with events playing out from that point as they had in history . Forms . Due to Bakura ' s loyalty to his village and his cause , Diabound is actually a holy or god type spirit . However , due to the fact that Bakura ' s hatred is what increases its strength , it later develops into a more demonic form .