Slifer the Sky Dragon (manga character)

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Slifer the Sky Dragon
Slifer the Sky Dragon
Corresponding cardSlifer the Sky Dragon
English name
  • Slifer the Sky Dragon
Japanese translatedOsiris the Sky Dragon
Other namesSaint Dragon - The God of Osiris
Japanese name
RōmajiOshirisu no Tenkūryū
  • Male
Manga debutYu-Gi-Oh! Duel 172172 (Duelist Duel 113): "Summon the Nightmare"
Appears in
Slifer the Sky Dragon (manga character)

Slifer the Sky Dragon, known as Osiris the Sky Dragon (オシリスのてんくうりゅう Oshirisu no Tenkūryū) in the Japanese version, is a character in the Yu-Gi-Oh! manga. It is one of most powerful monster spirits, the Egyptian Gods. Its corresponding Duel Monsters card is "Slifer the Sky Dragon", known as "Saint Dragon - The God of Osiris", in the Japanese version.


Slifer is a large, serpentine red-skinned, black-bellied dragon with spikes running down its body. Its wings are bat-like in form, with two thumb claws. Slifer's head has two mouths; the bottom jaw of the smaller top set is part of the top jaw of the larger set. The last tooth at each cheek is larger than the others. Slifer's head is crested with four spikes protruding horizontally, and two larger ones from the back of the head curving vertically; the sapphire common to the Egyptian Gods is nestled at the front of the crest. Its tail crest is shaped in a similar manner, but with a single flattened spike at the tip rather than two spikes. Slifer has short arms with three-toed feet.

During Yu-Gi-Oh! Millennium World, Slifer's spines are more constant, and it has hind limbs like its anime counterpart.


Ancient Egypt[edit]

Slifer chasing Diabound.

Slifer is one of the three Egyptian Gods, along with The God of the Obelisk and The Sun Dragon Ra. These monsters were only capable of being summoned by the pharaoh.

When Atem spotted Bakura, King of Thieves fleeing from the palace after he had attacked Aknadin, he chased after him on horseback[1] and Summoned Slifer to fight Bakura's Diabound.[2] Atem allowed Slifer to be struck in order to protect innocent civilians from Diabound's attacks and then got Slifer to force the battle into the sky. However Diabound was able to disappear into the darkness and attack Slifer from behind.[3] Atem pretended to surrender his Millennium Pendant in order to distract Thief Bakura while he had Slifer sneak up on him. However Bakura got Diabound to make a similar sneak attack on the pharaoh.[4] After the priests arrived, Atem sacrificed Slifer, so that Seto's Duos could attack Diabound, but Duos wound up hitting a decoy ka instead.[5] By defeating Slifer, Diabound gained its power, including its "Thunder Force" attack.[6]

Battle City[edit]

3000 years later, Maximillion J. Pegasus created cards depicting the three Egyptian Gods, for his game Duel Monsters. However the souls of the Gods came to dwell in the cards, making them powerful weapons. On realizing this, Pegasus regarded their creation as one of his greatest mistakes. He tried to destroy the God Cards, but could not bring himself to do it, so he had the Egyptian supreme council of antiquities bury the cards in different locations in the Valley of the Kings. The Rare Hunters managed to steal the "Slifer the Sky Dragon" and "The Sun Dragon Ra" cards. However the Egyptian supreme council of antiquities was able to prevent them finding "The God of the Obelisk". Ishizu Ishtar, from the council, later gave it to Seto Kaiba, so that he would host the Battle City tournament to retrieve the other two.[7]

The leader of the Rare Hunters, Marik Ishtar, entered the Battle City tournament with the "Slifer" and "Ra" God cards. Using Doll as his puppet, he Dueled Dark Yugi in the preliminaries and used "Slifer the Sky Dragon" in the Duel. However Dark Yugi won the Duel and received the "Slifer" card through the tournament rules.

Dark Yugi used "Slifer the Sky Dragon" in his semi final Duel against Dark Bakura. Summoning it and attacking Dark Bakura became Dark Yugi's only way of winning the Duel. Marik exploited this, by having Dark Bakura remove his control over Ryo Bakura's body. Ryo, who was injured and significantly weaker than Dark Bakura would not be able to withstand an attack from Slifer, making Dark Yugi reluctant to attack. However, Dark Bakura took back control of Ryo's body and urged him to attack, assuring him Ryo would be okay.

During Dark Yugi and Kaiba's semi final Duel, when their cards "Slifer the Sky Dragon" and "The God of the Obelisk" destroyed each other, they were shown a vision of a past battle between Pharaoh Atem and Priest Seto.

Dark Yugi also used "Slifer" in his final Duel against Dark Marik, though it was swiftly destroyed by "Egyptian God Phoenix". Dark Yugi later revived "Slifer" to shield his "Obelisk" from one of the attacks from "Egyptian God Phoenix".

Project R.A.[edit]

When Yako Tenma Dueled Dark Yugi for the first time, Yugi Summoned "Slifer" by sacrificing his "Magna Warriors", though Yako remained calm and proceeded to Summon his own "God card", "The Wicked Avatar", which was initially in the shape of a black orb before taking on "Slifer's" form. Yugi attempted to use "Slifer's" second mouth to destroy "Avatar", but the effect failed as "Avatar" was higher on the Divine Hierachy. "Avatar" then destroyed "Slifer" with a single attack, later revealed to be due to the "Avatar's" capability to take on the highest ATK on the field plus one.

Although consistently mentioned alongside the other Egyptian Gods, "Slifer" only made one more appearance, being used to offhandedly defeat Cedar Mill as Dark Yugi and Gekko Tenma raced to the top of the Kaiba Corporation building.

World of Memories[edit]

Atem summons Obelisk, Slifer and Ra before fusing them into Horakhty.

When Dark Yugi entered the World of Memories, he relived some of his life as Pharaoh Atem, and fought the battle against Thief Bakura, in which he Summoned Slifer, again.[1][2][3][4][5]

After relearning his true name from his friends, Atem blocked an attack from Zorc Necrophades and then Summoned the three Gods from the cards in Yugi Mutou's Deck. He then combined them into The Creator God of Light, Horakhty, who defeated Zorc.[8]

Atem Summoning "Slifer" during his Duel with Yugi.

Yugi and Atem constructed separate Decks for the Rite of the Duel, which Atem needed to lose in order to pass on to the afterlife. Despite needing to lose, Atem gave the Duel his all. He included "Slifer" in his Deck, and discarded it at the beginning of the Duel as the cost to Special Summon "The Tricky". He revived it at the climax of the Duel, preparing to counterattack Yugi's "Silent Magician", but Yugi prevented the activation of "Monster Reborn" with "Gold Sarcophagus", sending "Slifer" back to the Graveyard and allowing him to win the Duel.


  1. a b Yu-Gi-Oh! Duel 299299 (Millennium World Duel 21): "Assault on the Palace!"
  2. a b Yu-Gi-Oh! Duel 300300 (Millennium World Duel 22): "Slifer vs. Diabound"
  3. a b Yu-Gi-Oh! Duel 301301 (Millennium World Duel 23): "Divine Light, Divine Shadow"
  4. a b Yu-Gi-Oh! Duel 302302 (Millennium World Duel 24): "Surprise Attack! Power Attack!"
  5. a b Yu-Gi-Oh! Duel 303303 (Millennium World Duel 25): "To Pierce the Darkness!"
  6. Yu-Gi-Oh! Duel 313313 (Millennium World Duel 35): "The Village of Ghosts!!"
  7. Yu-Gi-Oh! Duel 147147 (Duelist Duel 88): "The Lost Cards"
  8. Yu-Gi-Oh! episode 219219: "In the Name of the Pharaoh"