The Orichalcos God, or the Great Leviathan (4Kids dub), also known as the "Great Beast", is a gigantic serpent creature who is behind all the events in Season 4 of Yu-Gi-Oh!, the Waking the Dragons arc and thus is the overarching antagonist and final boss of the arc.


He was empowered by the dreaded Orichalcos magic which he is the sole master of and he employed the Orichalcos Stones to take over the world. It was these stones that made Dartz of Atlantis turn evil and use the Orichalcos Stones and cards to seek out victims to steal souls from to feed the Orichalcos God.

The souls of Gurimo, Pegasus J. Crawford, Yugi, Insector Haga, Dinosaur Ryuzaki, Amelda, Valon, Katsuya Jonouchi, Mai Kujaku, Rafael, and Seto Kaiba were among the many fed to the Orichalcos God. The final soul was that of Dartz himself, after he lost a duel to Yami.

Later, the remaining duelists' Duel monsters battled the Orichalcos God, but it was completely ineffective; the Orichalcos God sent numerous shards which easily dispatched all of them, while all the duelists were captured by him, except Yami. Yami, however, converted the darkness inside people and Duel Spirits' souls into light, allowing the three Egyptian gods to be released. It also greatly weakened the Orichalcos God, while the Egyptian gods' powers increased immensely. It required the souls and powers of millions to neutralize him; Yami finally caused him to disappear by removing all of his remaining darkness within his soul.

After the Orichalcos God's death, Dartz was released from his control, and the souls of all his victims were returned during the battle.



  • He was also dubbed the "Grand Dragon Leviathan" in English advertisement media.
  • On the site, the artwork displayed for this monster is mistakenly that of "Cave Dragon".
  • It is considering to be one of the largest monster that ever seen in the anime, being larger than even all three Egyptian Gods.


           Yu-Gi-Oh logo Villains

Dark Yugi | Seto Kaiba | Mokuba Kaiba | Yami Bakura | Pegasus J. Crawford | Marik Ishtar | Yami Marik | Odion Ishtar | Mr. Ishtar | Noah Kaiba | Gozaburo Kaiba | Gurimo | Insector Haga | Dinosaur Ryuzaki | Imitator of Death | Paradox Brothers | Bandit Keith | Takaido | Ghost Kotsuzuka | Satake | Mr. Karita | Player Killer of Darkness | Zigfried von Schroeder | Leon von Shroider | Thief King Bakura | Kekeru Goyu | Tetsu Trudge | Scott Irvine

Rare Hunters
Pandora the Conjurer | Strings | Seeker | Lumis and Umbra

Big Five
Gansley | Crump | Johnson | Nesbitt | Lector

Dartz | Rafael | Amelda | Valon | Orichalcos God

Yu-Gi-Oh! GX
Vellian Crowler | Jean-Louis Bonaparte | Ryo Marufuji | Brron | Zure | Kozaky | Chaos Sorcerer | Aileen Rao | Monkey Saruyama | Trueman Mad Dog Inukai | Takuma Saiou | Light of Destruction | Thelonious Viper | Trapper | Yubel | Supreme King | Guardian Baou | Skilled Dark Magician & Skilled White Magician | Three Masked Knights

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Rex Goodwin | Roman Goodwin | King of the Netherworld | Kalin Kessler | Devack | Greiger | Sayer | Professor Frank | Mr. Armstrong | Z-one | Don Piero | Jakob | Lazar | Primo | Rudolph Heitmann

Yu-Gi-Oh! Zexal
Don Thousand | Dr. Faker | Mr. Heartland | Number 96 | IV | Nistro | Quattro | Ray Shadows | Vetrix | Parker | Quinton

Seven Barian Emperors
Vector | Reginald Kastle | Rio Kastle | Alito | Mizar | Dumon | Girag

Yu-Gi-Oh! Arc-V
Leo Akaba | Shingo Sawatari | Yuri | Jean-Michel Roger | Sergey Volkov | Zarc

Anubis | Paradox | Diva

Big Five | Rare Hunters | Doma | Paradius | Shadow Riders | Dark Signers | Seven Barian Emperors | Duel Academy

Yako Tenma | Mr. Clown | Ahmet | Tragoedia | Luna | Leo

Jinzo | Witty Phantom | Orichalcos God | Diabound | Zorc Necrophades | Sacred Beasts | Chaos Sorcerer | Sky Scout | Skull Knight | Earthbound Immortals | The Lswarm | The Construct | Tierra | Trishula, Dragon of the Ice Barrier

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