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Fionn mac Cumhaill

FGO Fionn mac Cumhaill, Pros and Cons, Rating, Strategies and Tips, Stats, Skills, Wiki, and Noble Phantasm.
[US] Fate Grand Order
How to unlock/max Irisviel
update 18/07/2017

Overview

Fionn mac Cumhaill

RarityCostClass
4★12Lancer
Lancer
Rating4.5/10

Fionn suffers from a lot of things, but the most notable one is his bad NP gain. Even after his Strengthening Quest - which allows his first skill to buff NP gain as well - his performance in this regard is still subpar, which makes him a somewhat poor damage dealer as it means that he cannot unleash his main NP as often. Additionally, his second skill’s Evasion is chance-based unless it’s max leveled, meaning that he may often die randomly - and even at maximum level, said skill has an unprecedentedly long cooldown of 10 turns.

Even so, Fionn has a couple of redeeming qualities, though it is probably not enough to cover all his shortcomings. Despite the cooldown, Taunt is a highly useful skill, able to save the team from certain defeat in some situations. Additionally, his first skill being party-wide means that he is able to contribute something to the team, though one may argue that critical gain up means relatively little for Arts-oriented Servants. Lastly, his NP’s mental debuff immunity allows him to cover his second skill’s demerit, although the demerit itself is situational to begin with.

Fionn suffers from a lot of things, but the most notable one is his bad NP gain. Even after his Strengthening Quest - which allows his first skill to buff NP gain as well - his performance in this regard is still subpar, which makes him a somewhat poor damage dealer as it means that he cannot unleash his main NP as often. Additionally, his second skill’s Evasion is chance-based unless it’s max leveled, meaning that he may often die randomly - and even at maximum level, said skill has an unprecedentedly long cooldown of 10 turns.

Even so, Fionn has a couple of redeeming qualities, though it is probably not enough to cover all his shortcomings. Despite the cooldown, Taunt is a highly useful skill, able to save the team from certain defeat in some situations. Additionally, his first skill being party-wide means that he is able to contribute something to the team, though one may argue that critical gain up means relatively little for Arts-oriented Servants. Lastly, his NP’s mental debuff immunity allows him to cover his second skill’s demerit, although the demerit itself is situational to begin with.

Pros

  • Has Taunt with a built-in Evasion
  • Possesses both offensive and defensive functions
  • First skill provides some sort of team support function

Cons

  • Bad NP gain
  • Chance-based Evasion on second skill unless it’s max leveled
  • Long cooldown on Taunt
  • Mediocre NP damage

Strategies & Tips

Fionn is best used with an Arts support-heavy team, in order to cover his bad NP gain and middling NP damage. In combat, he should only use his Taunt in the direst of situations, as most of the time, it can only be used once due to the long cooldown. His first skill should mainly be used to buff his own NP gain, while his third skill is best used on his NP turn. Due to his bad base NP gain, it is best to focus on creating Arts chains instead of things like AQA Brave chains.

Noble Phantasm

Mac an Luin: Undefeated Violet Flower deals damage to all opponents, reducing their attack slightly. On the other hand, Fionn himself gains mental debuff immunity for three turns, effectively rendering him immune to charms, stuns, and skill seals for the duration. While it has received an upgrade, Fionn only possessing one Arts performance buff means that its damage cannot compete with SSRs - though it is by all means decent when compared with his fellow SR peers. What truly hurts this NP, however, is Fionn’s horrid NP gain, which means that it can’t be used nearly as often as other Servants’ NP.

Best Servants to Work with

ServantExplanation
Tamamo no Mae
Tamamo no Mae
Tamamo is one of the most important Servants for Fionn, as both her Arts buff and NP charge directly help Fionn in gaining NP, and for the former, also in dealing damage. Additionally, Tamamo also provides healing, which can be greatly useful if Fionn’s Evasion somehow misses. Her cooldown reduction also helps his second skill, effectively reducing about 2 turns from its cooldown.
Gilgamesh (Caster)
Gilgamesh (Caster)
Caster Gilgamesh’s Arts up and stargen up goes in hand with Fionn’s first skill, allowing the party to generate large amounts of stars and greatly increasing the team’s NP gain. As Gilgamesh lacks a survivability function aside of his NP, Fionn’s second skill allows them to survive dire situations.
Zhuge Liang
Zhuge Liang
Zhuge Liang is included in this list solely for his NP charging skills, which essentially eliminates concerns over Fionn’s bad NP gain, at least in shorter fights. The damage increase he provides through the attack up and NP, as well as his triple Arts deck, allows Fionn to make more impact in a shorter time period.

Best CEs

NP Damage Up

While this CE type does not directly address Fionn’s NP gain issue, it does help his occasional NP hit much harder, thus somewhat making up for the disadvantage. Additionally, the damage increase scales really well with most support Servants.

Arts Performance Up

This CE type is rather alluring for Fionn as they are able to reduce the disadvantage his base NP gain poses, while still giving him an overall damage increase. Naturally, however, the damage increase scales worse compared to NP damage up CEs.

Critical Absorption Up

This CE type allows Fionn to make the most use of his critical star gain buff, especially in Arts teams where star gain via normal hits are somewhat scarce. Performing a critical also doubles the amount of NP gained, which indirectly mitigates his biggest issue.

Max Bond Level CE

CEExplanation
Salmon of Knowledge
Salmon of Knowledge
When equipped to Fionn Mac Cumhaill (Lancer) only, increase Arts Card effectiveness for all allies by 10% and NP Strength by 10% while on the field

Stats

LvlHPATK
Base2,0401,488
Lv407,3955,209
Lv8012,7508,930
Lv9014,0999,867
Lv10015,45910,812

Hidden Stats

NP Charge (ATK)0.55%
NP Charge (DEF)4%
Star Weight89
Star Rate12.3%
Death Resist32%
AlignmentLawful, Good
AttributeSky
TraitsDivine, Humanoid, Servant, Weak to Enuma Elish

Noble Phantasm

Mac an Luin (Rank A)

Deal damage to all enemies
Apply Mental Debuff Immunity for yourself (3 turns)
[Overcharge] Decrease ATK for all enemies (3 turns)

RankA
ClassificationAnti-Army
TypeArts
Hit-Count3
LvlDamage +ChargeAttack -
1450%100%10%
2600%200%15%
3675%300%20%
4712.5%400%25%
5750%500%30%

Mac an Luin (Rank A+)

Deal damage to all enemies
Apply Mental Debuff Immunity for yourself (3 turns)
[Overcharge] Decrease ATK for all enemies (3 turns)

RankA+
ClassificationAnti-Army
TypeArts
Hit-Count3
LvlDamage +ChargeAttack -
1600%100%10%
2750%200%15%
3825%300%20%
4862.5%400%25%
5900%500%30%

Skills

Upgrade Priority

Priority: 3/1(Post-Upgrade)/2/1(Pre-Upgrade)

  • Clairvoyance B / Clairvoyance (Beauty) B++
    Before its upgrade, as with all Clairvoyance-type skills, this skill is less useful due to Arts cards’ low base star generation rate. After its upgrade, it also increases NP gain and affects all party members, giving Fionn some extent of utility. It also somewhat helps Fionn’s NP gain, making it a valuable asset for longer fights.

  • Trouble With Women A
    Applies a 1-turn Taunt on self, as well as a chance-based Evasion. True to the skill’s name, its built-in demerit makes Fionn terribly easy to charm by female enemies. While the Evasion chance increases with every skill level, its terribly long cooldown makes this skill’s worth highly questionable.

  • Magecraft B
    Increases Fionn’s Arts cards’ performance for one turn. While it has a slightly lower percentage compared to other similar skills, it is still his main damage increasing skill, and it also brings his Arts cards’ NP gain to a decent level for one turn, benefiting Fionn’s possible NPAA Brave chain.

Clairvoyance B

Clairvoyance B

Available from the start
Increase your C. Star Drop Rate (3 turns)

LvlStar Rate +Cooldown
119%8
220.9%8
322.8%8
424.7%8
526.6%8
628.5%7
730.4%7
832.3%7
934.2%7
1038%6

Clairvoyance (Beauty) B++

Available after completing the Strengthen Quest
Increase C. Star Drop Rate (3 turns) for all allies & increase NP Gain (3 turns) for all allies

LvlStar Rate +NP Gain +Cooldown
130%10%8
232%12%
334%14%
436%16%
538%18%
640%20%7
742%22%
844%24%
946%26%
1050%30%6

The Beauty of Trouble with Women A

The Beauty of Trouble with Women A

Unlocks after 1st Ascension
Apply Evade for yourself (1 turn)
Apply Target Focus (1 turn) for yourself
Decrease your Charm Resist (female enemy) by 80% (3 turns)

LvlChance of evasionCooldown
160%12
264%12
368%12
472%12
576%12
680%11
784%11
888%11
992%11
10100%10

Magecraft B

Magecraft B

Unlocks after 3rd Ascension
Increase your Arts Card effectiveness (1 turn)

LvlArts +Cooldown
124%7
225.6%7
327.2%7
428.8%7
530.4%7
632%6
733.6%6
835.2%6
936.8%6
1040%5

Class Skills

Magic Resistance BMagic Resistance B
Increase your Debuff Resist by 17.5%
Divinity DDivinity D
Apply Damage Plus (by 125) for yourself

Command Cards

QuickQuickArtsArtsBuster
CardQuick
Quick
Arts
Arts
Buster
Buster
Extra
Extra
Hit-Count2214

Fionn’s QQAAB deck is somewhat wasted, as his low hitcount means that his Quick cards cannot generate critical stars reliably. Combined with his poor NP gain, his Quick cards are little more than ‘filler’ cards. Instead, he relies heavily on his Arts cards, as gaining NP via Arts chains is more or less his main way to use his NP.

NP Gain

1st2nd3rd
423
467
411
112
B / Q46
000

Bond Level

LvlExp RequiredTotal Exp
12,5002,500
23,7506,250
35,00011,250
46,25017,500
510,00027,500
6232,500260,000
7240,000500,000
8270,500770,500
9309,5001,080,000
10410,0001,490,000

Skill Enhancement Materials

LvlQP CostMaterials
1 → 2100,000Shining Gem of Lancesx4 (Shining Gem of Lances)
2 → 3200,000Shining Gem of Lancesx10 (Shining Gem of Lances)
3 → 4600,000Magic Gem of Lancesx4 (Magic Gem of Lances)
4 → 5800,000Magic Gem of Lancesx10 (Magic Gem of Lances)
Pumpkin Headx12 (Pumpkin Head)
5 → 62,000,000Secret Gem of Lancesx4 (Secret Gem of Lances)
Pumpkin Headx24 (Pumpkin Head)
6 → 72,500,000Secret Gem of Lancesx10 (Secret Gem of Lances)
Phoenix Plumex4 (Phoenix Plume)
7 → 85,000,000Phoenix Plumex7 (Phoenix Plume)
Octuplet Twin Crystalsx5 (Octuplet Twin Crystals)
8 → 96,000,000Octuplet Twin Crystalsx15 (Octuplet Twin Crystals)
Snake Jewelx16 (Snake Jewel)
9 → 1010,000,000Crystallized Lore​x1 (Crystallized Lore​)

Ascension Materials

AscensionQP CostMaterials
1st50,000Lancer Piecex4 (Lancer Piece)
2nd150,000Lancer Piecex10 (Lancer Piece)
Phoenix Plumex5 (Phoenix Plume)
3rd500,000Lancer Monumentx4 (Lancer Monument)
Pumpkin Headx24 (Pumpkin Head)
Talon of Chaosx3 (Talon of Chaos)
4th1,500,000Lancer Monumentx10 (Lancer Monument)
Talon of Chaosx5 (Talon of Chaos)
Shadow Servantx20 (Shadow Servant)

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