BBSlotFailure This Servant is LOCKEDLocked until you complete Fuyuki and will be added to the summoning pool once the quests are completed.
This article is for Class-Caster-Silver Cu Chulainn. For 3★ Class-Lancer-Silver, see Cu Chulainn & Cu Chulainn (Prototype). For 5★ Berserkericon, see Cu Chulainn (Alter).
Servant Interlude Dialogue Strengthen


Cu Chulainn (Caster)

★ ★ ★

Japanese Name: クー・フーリン
ID: 38 Cost: 8
ATK: 1,222/6,580 HP: 1,728/9,604
Grail ATK: 8,905 Grail HP: 13,022
Voice Actor: Kanna Nobutoshi Illustrator: Mata
Attribute: Sky Growth Curve: Reverse S
Star Absorption: 49 Star Generation: 10.9%
NP Charge ATK: 1.6% NP Charge DEF: 3%
Death Rate: 42% Alignments: Lawful・Neutral
Gender: Male
Traits: Brynhildr's Beloved, Divine, Earth or Sky, Humanoid, Male, Servant, Weak to Enuma Elish
Quickicon2  |  Artsicon1  |  Bustericon1  |  Extraicon3

Active Skills Passive Skills Noble Phantasm Ascension Skill Upgrade Bond Level Biography Trivia

Active Skills

Available from the start
Rune Magic A
Increases own critical damage for 3 turns.
Increases own debuff resistance for 3 turns.
Level 12345678910
Critdmgup Crit Damage + 20%23%26%29%32%35%38%41%44%50%
Resistanceup Debuff Res + 20%23%26%29%32%35%38%41%44%50%
Cooldown 7 65

Upgrades after Strengthening Quest, Replaces Rune Magic
Primeval Rune
Increases own critical damage for 3 turns.
Increases own debuff resistance for 3 turns.
Charges own NP gauge. UpgradeIconText
Level 12345678910
Critdmgup Crit Damage + 20%23%26%29%32%35%38%41%44%50%
Resistanceup Debuff Res + 20%23%26%29%32%35%38%41%44%50%
NpCharge NP + 20%21%22%23%24%25%26%27%28%30%
Cooldown 7 65

Unlocks after 1st Ascension
Protection from Arrows A
Avoid Grants self Evasion for 3 attacks.
Increases own defense for 3 turns.
Level 12345678910
Defenseup Defense + 9%9.9%10.8%11.7%12.6%13.5%14.4%15.3%16.2%18%
Cooldown 7 65

Unlocks after 3rd Ascension
Disengage C
Removes own debuffs.
Recovers own HP.
Level 12345678910
HealEffect Heal + 50060070080090010001100120013001500
Cooldown 7 65

Passive Skills

Territory creation
Territory Creation B
Increases damage of unit's Arts cards by 8%.
Divinity B
Increases damage by 175.

Noble Phantasm

Wicker Man
Cage of Scorching, Consuming Flames
Rank Classification Type Hit-Count
B Anti-Army Buster 1
Effect Deals damage to all enemies.
NP Level 1 2 3 4 5
Powerup Damage + 300% 400% 450% 475% 500%
Overcharge Effect Reduces all enemies' defense for 3 turns.
Burns all enemies for 10 turns.
Charge 100% 200% 300% 400% 500%
Defensedown Defense - 10% 15% 20% 25% 30%
Burn Burn Damage + 300 600 900 1200 1500


Item 1 Item 2 Item 3 Item 4 QP
1st Caster piece4 Qp30,000
2nd Caster piece8 Yggdrasil seed6 Qp100,000
3rd Caster monument4 Talon of chaos2 Forbidden page7 Qp300,000
4th Caster monument8 Talon of chaos4 Infinity gear8 Qp900,000

Skill Reinforcement

Item 1 Item 2 Item 3 Item 4 QP
1st Shiningcaster4 Qp50,000
2nd Shiningcaster8 Qp100,000
3rd Magiccaster4 Qp300,000
4th Magiccaster8 Forbidden page4 Qp400,000
5th Secretcaster4 Forbidden page7 Qp1,000,000
6th Secretcaster8 Yggdrasil seed4 Qp1,250,000
7th Phoenix plume4 Yggdrasil seed8 Qp2,500,000
8th Phoenix plume10 Infinity gear16 Qp3,000,000
9th Crystallized lore1 Qp5,000,000


Strength: E
Endurance: D
Agility: C
Mana: B
Luck: D

Bond Level

Bond Level 1 2 3 4 5 6 7 8 9 10
Bond Required 3,000 6,125 6,125 6,125 6,125 242,500 250,000 260,000 270,000 315,000
Total Bond 3,000 9,125 15,250 21,375 27,500 270,000 520,000 780,000 1,050,000 1,365,000
Bond 10 Reward YggdrasilTreeIcon Yggdrasil Tree
If equipped to Cu Chulainn (Caster),
Increase NP damage by 30%.
Chance to regain 500 HP when attacking.


Unlock Description Translation
Default ケルト、アルスター伝説の勇士。


A brave warrior from Celtic, Ulster mythology.

A member of the Knights of the Red Branch and the strongest warrior in Ulster, at the same time that he is a hero that employs the magic spear received from the leader of the underworld Scathach, he is also said to be a practitioner of runes - the magecraft of Northern Europe that was inherited from his mentor.

Bond 1 身長/体重:185cm・70kg

属性:秩序・中庸 性別:男性

Height/Weight: 185cm ・ 70kg

Source: Celtic mythology
Region: Europe
Alignment: Lawful ・ Neutral
Gender: Male
When a Caster, he does not put on any metallic equipment.

Bond 2 キャスターとして現界した彼はランサーとしての現界時とはうって変わり、多彩な魔術の使い手として敵対者を苦しめる。


Having manifested as a Caster, he underwent a sudden change from when manifesting as a Lancer and now torments his opponents as a user of diverse magecrafts.

Has powerful heat・flame attacks as his specialty. Apparently, the "ansuz" rune is being employed in this.

Bond 3 ルーン魔術:A


Rune Magic: A

Possession of the Magic Crest of Northern Europe - the runes. By making proper use of this, powerful and varied effects are mastered.
However, simultaneously employing multiple effects (joint use) is inadvisable.

Bond 4 『焼き尽くす炎の檻』

ランク:B  種別:対軍宝具

Cage of Scorching, Consuming Flames

Rank: B
Type: Anti-Army
Wicker Man. A giant composed by countless tree branches makes his appearance.
Said giant wears flames on his body and applies intense heat・flames damage by rushing on the target.

Bond 5 宝具として出現した巨人の胴部の檻は空であり、そのため、巨人は神々への贄を求めて荒れ狂う。


The cage on the torso of the giant that appeared as a Noble Phantasm is empty, hence the giant rages while seeking the offerings to the gods.

This is not a secret art of the runes, but a Noble Phantasm of the Celtic druids, given to the Child of Light who manifested as a "Celt magus" that manipulates sweltering heat.

Extra キャスターとして現界した彼は、導く者としての役割を自らに課していると思しい。


Having manifested as a Caster, he apparently has imposed upon himself the role as one who guides.

Not as a true druid, but as a temporary one--
So long they continue together, he shall illuminate the path that the Master walks on.