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Fate/Grand Order Wiki
Servant Dialogue Interlude
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Japanese Name: ディオスクロイ
AKA: Dioskouroi, the Gemini Twins, Castor & Pollux (カストロ & ポルクス?)
ID: 278 Cost: 16
ATK: 1,829/11,840 HP: 2,174/14,824
Lv.100 Grail ATK: 12,961 Lv.100 Grail HP: 16,240
Lv.120 Grail ATK: 15,213 Lv.120 Grail HP: 19,087
Voice Actor: Uchida Yuuma, Uchida Maaya Illustrator: Taiki
Attribute: Sky Growth Curve: Semi Reverse S
bottomlink= Star Absorption: 99 bottomlink= Star Generation: 10%
bottomlink= NP Charge ATK: 0.51% bottomlink= NP Charge DEF: 3%
bottomlink= Death Rate: 28% Alignments: Chaotic・Neutral
Gender: Unknown
Traits: Argo-Related, Brynhildr's Beloved, Divine, Divine Spirit, Feminine Looking, Hominidae Servant, Humanoid, Riding, Servant, Weak to Enuma Elish
Hits:  Quick Hits5  |  Arts Hits4  |  Buster Hits2  |  Extra Hits5
Active Skills Passive Skills Append Skills Noble Phantasm Ascension
Skill Upgrade Bond Level Biography Trivia Images

Active Skills

Available from the start
Buffatk.png Grants self On-Attack-Activate buff for 3 turns.
(Charges own NP gauge when attacking with Quickmini.png Quick Cards.)
Buffatk.png Grants self On-Attack-Activate buff for 3 turns.
(Gains critical stars when attacking with Artsmini.png Arts Cards.)
Level 1 2 3 4 5 6 7 8 9 10
NpCharge.png NP + 5% 5.5% 6% 6.5% 7% 7.5% 8% 8.5% 9% 10%
GainStars.png Star + 5 6 6 7 7 8 8 9 9 10
Cooldown 8 7 6

Unlocks after 1st Ascension
Increases party's NP damage for 1 turn.
Increases party's attack for 1 turn.
Debuffimmune.png Grants party Debuff Immunity for 1 time, 3 turns.
Level 1 2 3 4 5 6 7 8 9 10
Nppowerup.png NP Damage + 10% 10.5% 11% 11.5% 12% 12.5% 13% 13.5% 14% 15%
Attackup.png Attack + 10% 10.5% 11% 11.5% 12% 12.5% 13% 13.5% 14% 15%
Cooldown 7 6 5

Unlocks after 3rd Ascension
Increases own Quick performance for 3 turns.
Increases own Arts performance for 3 turns.
Avoid.png Grants self Evasion for 1 turn.
Level 1 2 3 4 5 6 7 8 9 10
Quickupstatus.png Quick + 10% 11% 12% 13% 14% 15% 16% 17% 18% 20%
Artsupstatus.png Arts + 10% 11% 12% 13% 14% 15% 16% 17% 18% 20%
Cooldown 8 7 6

Passive Skills

Anti magic.webp
Magic Resistance A
Resistanceup.png Increases own debuff resistance by 20%.

Riding B
Quickupstatus.png Increases own Quick performance by 8%.
Mad Enhancement B-
Busterupstatus.png Increases own Buster performance by 7.5%.
Avenger B
NPGainUpDmg.png Increases own NP generation rate when taking attack by 18%.
Resistancedown.png 500% Chance to reduce party's debuff resistance by 8% except self. (Including sub members) [Demerit]
Oblivion Correction C
Critdmgup.png Increases own critical damage by 6%.
Self-Replenishment (Magic) D
Npgainturn.png Charges own NP gauge by 3% every turn.
Twin Gods' Essence B
Powerup.png Increases own damage by 225.
Npchargeup.png Increases own NP generation rate by 5%.
Stargainup.png Increases own critical star generation rate by 5%.

Append Skills

Unlocks by consuming Servant Coins
Extra Attack Finesse Improvement
Increases own Extra Attack performance.
Level 1 2 3 4 5 6 7 8 9 10
Powerup.pngNpchargeup.pngStargainup.png Extra Attack + 30% 32% 34% 36% 38% 40% 42% 44% 46% 50%

Unlocks by consuming Servant Coins
Mana Loading
Starts battle with NP gauge.
Level 1 2 3 4 5 6 7 8 9 10
NpCharge.png NP + 10% 11% 12% 13% 14% 15% 16% 17% 18% 20%

Unlocks by consuming Servant Coins
Atk up.webp
Anti-Ruler Attack Damage Aptitude
Increases own attack against Class-Ruler-Gold.webp Ruler enemies.
Level 1 2 3 4 5 6 7 8 9 10
Attackup.png vs. Ruler Attack + 20% 21% 22% 23% 24% 25% 26% 27% 28% 30%

Noble Phantasm

Base Damage: x1.0
Rank Noble Phantasm Type
B Anti-Unit
Hits Per Hit Percentage
8 2%, 5%, 8%, 11%, 13%, 16%, 19%, 26%
Effect Invinciblepierce.png Ignores Invincibility for 1 turn. (Activates first)
Deals damage that Ignoredefense.png ignores defense buffs to one enemy.
NP Level 1 2 3 4 5
Powerup.png Damage + 900% 1200% 1350% 1425% 1500%
Overcharge Effect Reduces their Arts resistance for 3 turns.
Reduces their Quick resistance for 3 turns.
Charge 100% 200% 300% 400% 500%
Artsresistdown.png Arts Res - 10% 15% 20% 25% 30%
Quickresistdown.png Quick Res - 10% 15% 20% 25% 30%


Item 1 Item 2 Item 3 Item 4 QP
1st Saber piece.png5 QPicon.png100,000
2nd Saber piece.png12 Chains of The Fool.png22 QPicon.png300,000
3rd Saber monument.png5 Lamp of Demon Sealing6 DawnlightReactorCoreIcon.png3 QPicon.png1,000,000
4th Saber monument.png12 DawnlightReactorCoreIcon.png6 Divine Spiricle Vein.png12 QPicon.png3,000,000

Skill Reinforcement

Item 1 Item 2 Item 3 Item 4 QP
1st Shiningsaber.png5 QPicon.png200,000
2nd Shiningsaber.png12 QPicon.png400,000
3rd Magicsaber.png5 QPicon.png1,200,000
4th Magicsaber.png12 Lamp of Demon Sealing3 QPicon.png1,600,000
5th Secretsaber.png5 Lamp of Demon Sealing6 QPicon.png4,000,000
6th Secretsaber.png12 Chains of The Fool.png15 QPicon.png5,000,000
7th Chains of The Fool.png29 Comet Shard.png3 QPicon.png10,000,000
8th Comet Shard.png8 Divine Spiricle Vein.png24 QPicon.png12,000,000
9th Crystallized lore.png1 QPicon.png20,000,000

Item 1 Item 2 Item 3 Item 4 QP
1st Shiningsaber.png5 QPicon.png200,000
2nd Shiningsaber.png12 QPicon.png400,000
3rd Magicsaber.png5 QPicon.png1,200,000
4th Magicsaber.png12 Octuplet Twin Crystals5 QPicon.png1,600,000
5th Secretsaber.png5 Octuplet Twin Crystals10 QPicon.png4,000,000
6th Secretsaber.png12 Homunculus Baby5 QPicon.png5,000,000
7th Homunculus Baby10 Aurora Steel.png6 QPicon.png10,000,000
8th Aurora Steel.png18 DawnlightReactorCoreIcon.png15 QPicon.png12,000,000
9th Crystallized lore.png1 QPicon.png20,000,000


Strength: A
Endurance: A++
Agility: B
Mana: C
Luck: C

Bond Level

Bond Level 1 BondLevel1.png 2 BondLevel2.png 3 BondLevel3.png 4 BondLevel4.png 5 BondLevel5.png 6 BondLevel6.png 7 BondLevel7.png 8 BondLevel8.png 9 BondLevel9.png 10 BondLevel10.png
Bond Required 4,500 20,000 2,500 5,000 8,000 110,000 450,000 340,000 330,000 410,000
Total Bond 4,500 24,500 27,000 32,000 40,000 150,000 600,000 940,000 1,270,000 1,680,000
Rewards ServantCoin278.png5 ServantCoin278.png5 ServantCoin278.png5 ServantCoin278.png5 ServantCoin278.png5 ServantCoin278.png5 Saintquartz.png3 ServantCoin278.png10 Saintquartz.png3 ServantCoin278.png10 Saintquartz.png3 ServantCoin278.png10 Saintquartz.png3 ServantCoin278.png20
Bond CE
Bond 10 Craft Essence CEIcon1211.png Starlight Sword and Discus
When equipped on Dioscuri,
Increases party's Quick and Arts performance by 10% while they are on the field.
Chaldean Visionary Flames [?]
11 BondLevel1.png 12 BondLevel2.png 13 BondLevel3.png 14 BondLevel4.png 15 BondLevel5.png
1,090,000 1,230,000 1,360,000 1,500,000 1,640,000
2,770,000 4,000,000 5,360,000 6,860,000 8,500,000
Rewards ServantCoin278.png20 Saintquartz.png30 ServantCoin278.png20 Saintquartz.png30 ServantCoin278.png20 Saintquartz.png30 ServantCoin278.png20 Saintquartz.png30 ServantCoin278.png20 Saintquartz.png30


Unlock Description Translation🛈
Default ある双子(ディオスクロイ)が天へと上がり、




NA Localization: Once there was a set of twins (Dioscuri) who ascended to the heavens to become the shining constellation Gemini...

The name Dioscuri means "children of Zeus."

According to the "Catasterismi," written around the 3rd century B.C., the constellation Gemini was known as Dioscures, consisting of Castor and Pollux. The two appeared in the land of Laconia (the southeastern part of the Peloponnese peninsula) and later ascended to the heavens. It is said that the loving bond these siblings shared was unparalleled.

To immortalize the siblings' closeness, Zeus, king of the gods, combined stars from two independent constellations into a new constellation known as "the Twins."

Fan Translation: Once there were two twins who ascended to the heavens above, becoming the shining constellation of Gemini.
The name "Dioscuri" means “child of Zeus”.
Within the 3rd century BC book “Catasterismi” it is said that the constellation of Gemini is the Dioscuri, and that the twins were respectively called Castor and Pollux.
It is in Laconia (the southeastern part of the Peloponnese peninsula) where not long after being witnessed together they ascended to the heavens. A love surpassing what was held between this brother and sister was never to be seen again. Out of wanting to forever remember the close relationship the two held, Zeus created a constellation using the stars of two independent formations, thus naming the constellation Gemini.

Bond 1 身長/体重:175cm・57kg(妹)、175cm・67kg(兄)

属性:混沌・中庸  性別:―

NA Localization: Height/Weight: 175cm, 57kg (Sister), 175cm, 67kg (Brother)
Origin: Greek Mythology
Region: Europe
Alignment: Chaotic-Balanced
Gender: -
Dioscuri are always together. It may be fair to call them inseparable. Though they are two people, they make up a single Heroic Spirit.

Fan Translation: Height / Weight: 175cm / 57kg (sister), 175cm / 67kg (brother)
Source: Greek Mythology
Region: Europe
Alignment: Chaotic / Neutral
Gender: -
The Dioscuri are always together without ever being a moment apart, the inseparable twins. “They are unable to be apart” could be said to be an understatement as the two of them are one Heroic Spirit that is formed by two individuals.

Bond 2 ディオスクロイの原型は、若々しい騎手、



NA Localization: Originally the Dioscuri were ancient twin gods that took the form of young horsemen, or even horses themselves. They were said to be saviors of humans who were in danger, such as those in battle or at sea. The twin gods were long referred to as "the two gods," without individual names. The names Kastor (Castor) and Polydeukes (Pollux) were first recorded in the "Homeric Hymns," a collection of hymns praising the gods composed during Homer's era.

They bore the title "Anakes," which means "lords" or "kings." In later ages, they were regarded more as guardians of sailors thanks to their appearance as members of the Argo's crew in the "Argonautica." The flash of light that discharges from ships' masts during storms, known as St. Elmo's fire, was believed to be the twins manifesting to guide ships at sea.

Fan Translation: Originally, these divine twins of lore appeared in the form of youthful horsemen or at times even taking the form of actual horses. Throughout the ages it was said they were the savior of those who were confronted with adversity in battle and on the seas.
Holding various names over time such as “The Two Pillars” and others, the Dioscuri actually did not have any name in particular that stuck until the age of the bard Homer came around where the names Castor and Polydeuces (Pollux) were solidified due to the collection of Homeric Hymns that was created.

While at one time holding the title of Ruler (Anactes), as the ages passed they came to be more known as the Patrons of Sailors, leaning on the effect of their existence within stories like the "Argonautica” becoming strongly ingrained in history. It has been believed over the ages that the light (St Elmo’s Fire) which appears upon the top of a ship’s mast within a raging storm to guide weary travelers is a manifestation of the twins themselves.

Bond 3 本質的に古き神霊である彼らは、




NA Localization: As they are already ancient Divine Spirits, the Gemini possess a unique characteristic upon their manifestation: while being a single entity, they retain two separate bodies, and each of their bodies retains the attributes of a different class.

The elder brother, Castor, who was not the child of Zeus, harbors bitter resentment for the gods who led humans to ruin. He possesses the characteristics of an Avenger. The younger sister, Pollux, Zeus's immortal daughter, is a Saber who leverages her invincible physique to facilitate her indefatigable application of her masterful sword work.

While the Gemini's Spirit Origin is registered as a Saber because of their nature as a single entity, they function as a dual-class Servant. This unique characteristic was likely allowed because they are a Divine Spirit Servant.

Fan Translation: Being at their core an ancient Divine Spirit, they manifested with special traits at the time of their summoning. They exist as one while residing in two separate physical bodies in which can be found the traits of different classes. As for the explanation…
The humiliation the older brother Castor, who became the child of a mortal without the blood of Zeus in later legends, felt falling from the world of gods to the human world turned into hatred, resulting in his manifestation as an Avenger.
Living a life with a body that cannot be hurt and doing battle with fierce swordsmanship, the immortal one who bears the bloodline of Zeus, Pollux, has appeared as a Saber.
Recorded in their Spirit Origin is that of the Saber class: however, to be more accurate, the two of them are what is considered a double class servant. Though what could be thought to be the case of an exception, the special traits the two possess are that of a Divine Spirit servant.

Bond 4 双神の神核:B

両者が所有するスキル。 本来は古き双神であるためAないし規格外のランクを有するはずだが、後年に形作られたギリシャ神話に於ける双子伝説の影響を受けた結果、Bランクに留まる。




NA Localization: Core of the Twin Gods: B
A skill possessed by both twins.
Normally, the skill should be at least rank A or nonstandard because of their status as ancient twin deities, but the Greek myth of the Gemini that later became so widespread caused the skill to instead manifest at rank B. This also likely happened because later tellings specified that Castor lacked divine blood.

Star of the King of the Gods: A
A skill that represents the two individuals merging into a single entity and becoming a constellation.

Guardian of Sea Voyagers: B
Protects those who travel on ships.
The twins' presence rouses those about them, instilling them with hope and determination to overcome the challenges facing them. It is similar to Voyager of the Storm, and originally was a compound skill that included Tactics and Charisma.

Mana Burst (Light/Ancient): A
The twin deities are said to be the very representation of St. Elmo's fire, the strange light sometimes observed at sea. This is quite unlike the pseudo-Mana Burst many saintly Servants possess. Magical energy is discharged as light, and increases the target's combat strength.

Fan Translation: Twin Gods' Essence: B
A skill that both possess.
As ancient divine twins it should have possessed the power of A rank. However, from being affected by the growing legends within Greek Mythology as time passed the skill ended up at the power of B rank. In particular, it is thought that a major effect came from the legend of the brother Castor being "one without the blood of the Gods".

Stars of the Chief God: A
Displaying the way of Divine Twins through them existing together as one and becoming a constellation.

Guardians of Navigation: B
Calling forth protection for those who sail the waters. The existence of the Divine Twins brings forth hope for those in danger and energizes them from their very souls. While seeming to only be a skill to help those navigating storms, it is actually a skill that also exemplifies the charisma of a strategist at its core.

Mana Burst (Light/Ancient): A
A skill that displays their being the light which illuminates the ocean way, St. Elmo’s Fire.
In many ways similar to the subspecies magic that some Saint type servants possess, it is able to release magic in the form of strength increasing light.

Bond 5 『双神賛歌』

ランク:B 種別:対人宝具
レンジ:0~3 最大捕捉:1人



NA Localization: 『Dioscures Tyndaridae』
Rank: B
NP Type: Anti-Personnel
Range: 0-3
Maximum Target: 1

Poetic Praise of the Twin Gods.
Power that combines Pollux's skilled swordsmanship with Castor's rage against the gods for the devastation they cause. It is a most devastating combined attack the twins unleash. This attack is made possible by the coordination born from the twins' implicit trust in each other, and so has become their Noble Phantasm.

Additionally, when its True Name is revealed, the two almost completely regain their Divinity from their time as ancient deities, temporarily elevating this attribute to its maximum rank. Because this attack utilizes the near-perfect magical energy of a Divine Spirit, it ignores various physical and magecraft-based defenses, utterly obliterating its target.

Fan Translation: Hymn of the Divine Twins
Rank: B
Type: Anti-Unit Noble Phantasm
Range: 0~3
Maximum Targets: 1

Dioscures Tyndaridae
The power of the sword master Pollux and the hatred Castor holds for losing his place among the Gods. A perfectly unified combination attack between the twins inseparable in the heavens. Having reached the realm of becoming a Noble Phantasm through the ultimate combination attack made possible through their incomparable trust and belief in one another.
Upon release of their true name they are temporarily able to almost entirely regain the divinity of an ancient god, bringing their Noble Phantasm to the maximum rank possible. Calling forth the complete and utter overwhelming power of a Divine Spirit they are able to utilize it to release a flurry of attacks that pass through any and all physical or magical defenses and obstacles... more than likely completely destroying whatever they set their gaze on.

Unlock at Bond Level 5 and Clear Olympus
Extra 第五の異聞帯の発生当初では、現存する神として成立。





NA Localization: The Gemini materialized as a deity at the time of the Fifth Lostbelt's inception. However, they were defeated in their battle against Kirschtaria Wodime, and after temporarily losing their life, they formed a contract with Kirschtaria as a Lostbelt Servant. By forming a contract, Castor learned of the version of their legend native to Proper Human History. Though the myth was from Proper Human history, Castor could not help but harbor a tremendous hatred to humanity for what he saw as their looking down upon him. Pollux, too, shared that hatred after learning what her brother was made to experience.

Consequently, both siblings came to be dominated by their hatred of humanity, leading to their brutal violence toward Chaldea and the citizens of Olympus.

On the other hand, the twins who were summoned to Chaldea as Servants of Proper Human History are not so violent as the twin deities of the Lostbelt. Even though Castor possesses requisite mentality to establish his Spirit Origin as an Avenger, his younger sister Pollux's more calm and demure personality than that of her Lostbelt Servant equivalent is able to placate the older brother's wrath. You can mostly ignore the older brother...up to a point.

Fan Translation: They came into existence as Gods during the initial creation of the Fifth Lostbelt, thereafter falling in battle to Kirschtaria Wodime and losing their lives until entering a contract with him.

Through the contract Castor came to know of the legends of their Pan-Human History counterparts, however, even knowing this he began to hold a deep-seated hatred inside of him against humanity for having disgraced him so. Pollux also began to hold hatred against humanity due to what humanity had made her brother go through.
As a result of this, the brother and sister began to possess flames of hatred in their hearts and while interacting with the citizens of Olympus and Chaldea they were ever so violent and vicious.

On the other hand, their Pan-Human History selves that were summoned to Chaldea, do not hold as much hatred as their Lostbelt counterparts. Castor’s Spirit Origin was formed as that of the Avenger class due to his background and mental state. However, Pollux has become quite more pleasant in comparison to her Lostbelt self. The sister will make sure to put him in his place when he’s out of line, so to a certain extent it’s okay to not worry too much about his attitude.

April Fool ふたごサーヴァントいつでも一緒の仲良し兄妹。人間にコンプレックスを抱いており、兄のほうなどは常に殺意立っているが、召喚してしまえばこっちのもの、デレるのも時間の問題なのだ。