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 the Caster, Cu Chulainn. For 3★ Lancer, see Cu Chulainn & Cu Chulainn (Prototype). For 5★ Berserker, see Cu Chulainn (Alter).

Servant Interlude Dialogue Strengthen


Cu Chulainn (Caster)

★ ★ ★

Japanese Name: クー・フーリン
ID: 38 Cost: 8
ATK: 1222/6580 HP: 1728/9604
Grail ATK: 8905 Grail HP: 13022
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, Male, Humanoid, Divine, 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
Crit Damage + 20%23%26%29%32%35%38%41%44%50%
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.
Increase own NP charge.
Level 12345678910
Crit Damage + 20%23%26%29%32%35%38%41%44%50%
Debuff Res + 20%23%26%29%32%35%38%41%44%50%
NP charge + 20%21%22%23%24%25%26%27%28%30%
Cooldown 7 65

Unlocks after 1st Ascension
Protection from Arrows A
Grants self evasion for 3 hits.
Increases own defense for 3 turns.
Level 12345678910
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
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
Flame Cage that Burns All
Rank Classification Type Hit-Count
B Anti-Army Buster 1
Effect Deals damage to all enemies.
NP Level 1 2 3 4 5
Damage + 300% 400% 450% 475% 500%
Overcharge Effect Reduces all enemies' defense (3 turns).
Burns all enemies (10 turns).
Charge 100% 200% 300% 400% 500%
Enemy Defense - 10% 15% 20% 25% 30%
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.

== Biography =={{

Unlock Translation
Default A hero of the Celtic legends of Ulster.
A member of the Red Branch Knights and the most formidable warrior of Ulster.
He's the hero who wields a lance inherited from his mentor Scathach, lord of the Land of Shadows.
He is also a formidable user of Runes - magecraft based from Norse legends.
Bond 1 Height/Weight: 185cm. 70kg.
Origin: Celtic Mythology
Region: Europe
Alignment: Lawful-Neutral
Gender: Male
Doesn't wear metallic equipment when he is a Caster.
Bond 2 When he materializes as a Caster, he is different than when he materializes as a Lancer.
He uses a diverse range of magecraft to torment his enemies.
Specializing in powerful attacks using heat and fire, it is assumed that he uses the "Ansuz" rune letter.
Bond 3 Rune Spell: A
He possesses North European magical crests called runes, given to him by Scathach. By using them, he can create powerful and diverse effects.
However, he cannot use multiple runes at once.
Bond 4 Wicker Man
Rank: B
Type: Anti-Army
Flame Cage that Burns All.
A giant consisting of countless thin branches appears. The giant sets itself alight, and attacks the enemy to deal powerful heat and fire damage.
Bond 5 The cage in the torso of the giant that appears as a Noble Phantasm is empty. As a result the giant rages on, seeking sacrifices for the gods.
This is not an arcanum of the runes, but a Noble Phantasm the Celtic druids gave to the Son of Light who materialized as the "Celtic Mage" controlling fire and heat.