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Cu Chulainn (Alter, Berserker)

FGO Cu Chulainn (Alter), Pros and Cons, Rating, Strategies and Tips, Stats, Skills, Wiki, and Noble Phantasm.
[US] Fate Grand Order
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update 02/10/2017

Overview

Cu Chulainn (Alter)

RarityCostClass
5★16Berserker
Berserker
Rating9/10

Cu Chulainn (Alter) is a survival-oriented Berserker. The most notable thing about Cu Alter is his two-hits Evade skill, Protection from Arrows. It does not have an expiry time; as such, these Evasions will never be wasted. His first skill, which reduces opponents’ attack and critical rate, also helps his allies, particularly when he is paired with a Taunter. However, even with his fully defensive skillset, Cu Alter is still able to deal heavy amounts of damage, boasting the highest attack stat among all Berserkers, and aided with his Noble Phantasm’s attack buff.

Still, Cu Alter is not without his own weaknesses. Being a Berserker, he has a rather hard time filling his NP gauge. Considering that his main attack buff is built-in to his NP, this means that Cu Alter cannot perform his powerful NP Brave chain as often nor as early compared to competitors such as Kintoki. This may be a problem in faster-paced battles, but fortunately for him, most of the time his higher durability is more than enough to make up for it. Additionally, Berserkers’ low star weight means that he cannot make use of the critical damage mechanism, which is somewhat of a weakness as it is really popular later on in the game.

Pros

  • Extremely high survival
  • High damage even without offensive skills

Cons

  • Slow NP charging
  • No critical function

Strategies & Tips

Cu’s Evade should be used as soon as there is at least a medium-sized threat, in order to make the most of his cooldown. When Evade is not on, the first skill should be used, potentially stacked with his Noble Phantasm’s defense up should the situation be threatening enough. Otherwise, his Noble Phantasm should be used to create Brave chains with at least one other Buster card. His Battle Continuation skill should be used as needed.

Noble Phantasm

Curruid Coinchenn is a Buster-type single target Noble Phantasm, possessing built-in attack and defense buffs. These buffs are applied before the attack proper, meaning that the NP always benefits from the attack buff. As Cu’s only means of damage increase, his Noble Phantasm is best used to perform a Brave chain.

Best Servants to Work with

ServantExplanation
Zhuge Liang
Zhuge Liang
Zhuge’s NP charging skills are especially important to charge Cu Alter’s NP gauge. Additionally, Zhuge Liang’s defense buff also stacks with Cu’s attack debuff skill and his NP’s defense up.
Mash Kyrielight
Mash Kyrielight
As with all Berserkers, Cu Alter benefits from the existence of Taunters. However, as his base survival is much higher than his competitors, Mash is a good option for Cu Alter even with her Taunt being only one turn.
Nightingale
Nightingale
Nightingale’s heal is always a welcome addition for Cu Alter, but the main asset she brings to the table is her Buster buff, which lasts for three turns. It allows Cu to deal much higher amounts of damage for its duration, made even more significant since it is multiplied with his attack buff.

Best CEs

CEExplanation
Limited/Zero Over
Limited/Zero Over
Buster Performance
With a 4-Buster cards deck, these Craft Essences are no-brainer for Cu Alter, as they allow him to deal much higher damage on his normal command cards. It is also important to note that the Buster buff is multiplied with Curruid Coinchen’s attack buff.
Kaleidoscope
Kaleidoscope
Starting Noble Phantasm
Should be used for battles where Cu Alter’s NP is needed early on.
Volumen Hydrargyrum
Volumen Hydrargyrum
Invulnerability
These Craft Essences add to Cu Alter’s already impressive survival, allowing him to live for a decent amount of turns even in the most fast paced of battles.

Max Bond Level CE

CEExplanation
Lone Man's War
Lone Man's War
When equipped on Cu Chulainn (Alter),
Increase own NP damage by 30%, and Revive with 20% HP when defeated (1 time).

Stats

LvlHPATK
Base1,7901,979
Lv9012,21012,805
Lv10013,37714,017

Hidden Stats

NP Charge (ATK)0.69%
NP Charge (DEF)5%
Star Weight9
Star Rate5.1%
Death Resist52%
AlignmentLawful, Good
AttributeEarth
TraitsServant, Humanoid, Divine, Weak to Enuma Elish, Earth or Sky, Brynhildr's Beloved

Noble Phantasm

Curruid Coinchenn (Rank A)

Deals damage to one enemy.
[Overcharge]Increases own Attack (1 turn)
Increases own Defense (1 turn)
[This Effect Activates First.]

RankA
ClassificationAnti-Personnel
TypeBuster
Hit-Count12
LvlDamage +ChargeAttack +Defense +
1600%100%30%30%
2800%200%40%40%
3900%300%50%50%
4950%400%60%60%
51000%500%70%70%

Skills

Upgrade Priority

  • Madness of the Spirits A

Applies attack and critical debuffs on all opponents. At 20% and 50% respectively when maxed, this skill is particularly useful against more powerful bosses, whose criticals are a serious threat. On cooldown-reducing skill levels, Protection from Arrows takes precedence; however, Madness of the Spirits benefit more percentage-wise.

  • Protection from Arrows C

Cu’s primary defensive skill, applies a 2-hit Evasion and a defense buff on himself. This skill’s cooldown should be prioritized over all his other skills, although Madness of the Spirits gain more benefit in terms of percentage scaling.

  • Battle Continuation A

This skill acts as Cu’s last resort skill. As it is most likely only used once per battle, this skill should be leveled last.

Madness of the Spirits A

Madness of the Spirits A

Available from the start
Decrease all enemies' Attack and Critical Chance for 3 turns.

LvlAttack -Critical Chance -Cooldown
110%30%8
211%32%8
312%34%8
413%36%8
514%38%8
615%40%7
716%42%7
817%44%7
918%46%7
1020%50%6

Protection from Arrows C

Protection from Arrows C

Unlocks after 1st Ascension
Grants self evasion for 2 hits.
Increases own defense for 3 turns.

LvlDefense +Cooldown
17%7
27.7%7
38.4%7
49.1%7
59.8%7
610.5%6
711.2%6
811.9%6
912.6%6
1014%5

Battle Continuation A

Battle Continuation A

Unlocks after 3rd Ascension
Grants self guts status for 5 turns.

LvlRevives withCooldown
11000 HP9
21150 HP9
31300 HP9
41450 HP9
51600 HP9
61750 HP8
71900 HP8
82050 HP8
92200 HP8
102500 HP7

Class Skills

Mad Enhancement CMad Enhancement C
Increases damage of unit's Buster cards by 6%
Divinity CDivinity C
Increases own damage by 150.

Command Cards

QuickArtsBusterBusterBuster
CardQuick
Quick
Arts
Arts
Buster
Buster
Extra
Extra
Hit-Count4335

Cu’s QABBB deck allows him to deal large amounts of damage constantly, and makes for easier Buster Brave Chains when combined with his Noble Phantasm. While it does make gaining NP charge more difficult, due to his high survival it is not a significant liability when he is paired with a decent support.

NP Gain

1st2nd3rd
868
81114
822
245
B / Q912
000

Bond Level

LvlExp RequiredTotal Exp
15,0005,000
215,00020,000
310,00030,000
42,00032,000
518,00050,000
6150,000200,000
7430,000630,000
8340,000970,000
9320,0001,290,000
10405,0001,695,000

Skill Enhancement Materials

LvlQP CostMaterials
1 → 2200,000Shining Gem of Madnessx5 (Shining Gem of Madness)
2 → 3400,000Shining Gem of Madnessx12 (Shining Gem of Madness)
3 → 41,200,000Magic Gem of Madnessx5 (Magic Gem of Madness)
4 → 51,600,000Magic Gem of Madnessx12 (Magic Gem of Madness)
Talon of Chaosx3 (Talon of Chaos)
5 → 64,000,000Secret Gem of Madnessx5 (Secret Gem of Madness)
Talon of Chaosx6 (Talon of Chaos)
6 → 75,000,000Secret Gem of Madnessx12 (Secret Gem of Madness)
Pumpkin Headx15 (Pumpkin Head)
7 → 810,000,000Pumpkin Headx29 (Pumpkin Head)
Snake Jewelx5 (Snake Jewel)
8 → 912,000,000Snake Jewelx15 (Snake Jewel)
Shadow Servantx48 (Shadow Servant)
9 → 1020,000,000Crystallized Lore​x1 (Crystallized Lore​)

Ascension Materials

AscensionQP CostMaterials
1st100,000Berserker Piecex5 (Berserker Piece)
2nd300,000Berserker Piecex12 (Berserker Piece)
Pumpkin Headx22 (Pumpkin Head)
3rd1,000,000Berserker Monumentx5 (Berserker Monument)
Talon of Chaosx6 (Talon of Chaos)
Heart of a Foreign Godx2 (Heart of a Foreign God)
4th3,000,000Berserker Monumentx12 (Berserker Monument)
Heart of a Foreign Godx4 (Heart of a Foreign God)
Bloodstone Tearx8 (Bloodstone Tear)

E Pluribus Unum Campaign 3

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Comments

BheraZ
You put d'eon pic for mash description.
<< Anonymous(BheraZ)
KrisX_212 Reply
Fixed. Thank you very much.
Nightshade
kinda experienced some lagging in the game then it crashed when i was trying to summon Cu Alter
Anonymous
Cu Alter's version of Protection From Arrows grants evasion for 2 Hits, not 3. (Overview and Skills sections say he has a 3-hit evade).
<< Anonymous
KrisX_212 Reply
Thank you! That's fixed.
Anonymous
IS IT 2 HIT EVASION OR 3?!
<< Anonymous
KrisX_212 Reply
It's 2-hit. Thanks for notifying.

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