

Introduction
Diarmuid Ua Duibhne (Saber) is a 4-star servant in Fate/Grand Order with the Earth attribute. Diarmuid Ua Duibhne (Saber)'s class is Saber.
On the combined Fate/Grand Order tier list Diarmuid Ua Duibhne (Saber) is B tier, 198th of the 363 servants ranked, from where 3 community tier lists put Diarmuid Ua Duibhne (Saber).
Other servants in Fate/Grand Order with the Earth attribute: Abigail Williams, Abigail Williams (Summer), Achilles, Aesc the Rain Witch, Aesc the Savior, Altria Pendragon and 132 more.
Diarmuid Ua Duibhne (Saber)'s banners
All banners- 22 August 2022 to 5 September 2022Land of Shadows Battleground Blitz Pickup Summon (Daily)
- 4 January 2022 to 18 January 2022Revival: Sparrow's Inn Daily Report Pickup Summon (Daily)
- 8 January 2021 to 22 January 2021Sparrow's Inn Daily Report Pickup Summon 2 (Daily)
- 31 August 2020 to 14 September 2020Revival: Fate/Accel Zero Order Pickup Summon (Daily)
Profile
Diarmuid Ua Duibhne (Saber) is voiced by Hikaru Midorikawa in Japanese. Azusa drew him.
Stories
7Character details
A powerful knight and man of unparalleled beauty who wields two demonic swords and demonic spears. He was raised by Aengus, the fairy king and god of love, and Manannán, the god of the sea. Diarmuid was a member of Fionn mac Cumhaill's Knights of Fianna, and is said to have performed great feats when the knightly order fought alongside the fairy king Abarthach.
As he was a master of the sword as well as the spear, he was able to manifest here as a Saber. His Saber Spirit Origin emphasizes his aspect as a hero of myth and legend. It is much more costly and difficult to summon him as a Saber than as a Lancer, presumably because he possesses multiple Noble Phantasms of almost godly power.
Profile 1
Height/Weight: 184cm, 85kg
Origin: Celtic Mythology, Knights of Fianna
Region: Ireland
Alignment: Lawful-Balanced
Sub-Attribute: Earth
Gender: Male
The skill "Love Spot" is typically not used by this Spirit Origin, and is instead sealed.
Profile 2
A virtuous Heroic Spirit who is both loyal and cordial. More or less the same person as his Lancer self, his Saber self nonetheless more knightly. Whether consciously or not, he also tends more toward self-affirmations.
His Spirit Origin and performance have both improved over his Lancer iteration, but this has also made him more difficult to summon. This Spirit Origin cannot manifest until certain conditions are met, regardless of how skilled the summoner may be, and the opportunity to do so may fade away like so much mist.
Profile 3
Mana Burst (Jump): A
As Diarmuid was raised by the gods, he gained a superhuman ability to leap great heights and distances. In consequence of this, his agility is lower than when he is summoned as a Lancer. This Mana Burst allows him to increase his mobility in short, explosive bursts while also increasing his overall offensive ability.
The Knights of Fianna's Honor: B
Diarmuid's extraordinary resolve. His knightly gallantry made manifest.
Profile 4
『Móralltach』
Rank: B
NP Type: Anti-Personnel
Range: 1 - 20
Maximum Targets: 1
Waves of Fury.
Of all the powerful armaments in Diarmuid Ua Duibhne's possession, none can match this fearsome demonic sword.
The Single Stroke Lethal Blow:
The First Strike Sure Victory.
The unleashed demonic blade ensures a definitive victory for Diarmuid and casts his enemies down in death and defeat.
Profile 5
The demonic blade Móralltach, so powerful that it seemingly commands even fate, was given to Diarmuid by Manannán, the Celtic god of the sea and the otherworld. Manannán also bestowed the Noble Phantasm Fragarach to the sun deity Lugh, and was known to possess and give away many other Noble Phantasms.
Once its True Name is revealed, Diarmuid executes a superhuman leap at his enemy. At that moment, Móralltach takes a guise similar to that in the legend of "Manannán's Legs," becoming a triple blade to dispatch Diarmuid's enemies.
Additional profile
According to legend, whenever Diarmuid went on a life-or-death adventure, he took the demonic blade Móralltach and demonic spear Gáe Dearg. For any less dangerous expeditions, he instead brought the demonic blade Beagalltach and demonic spear Gáe Buidhe.
When Diarmuid died, he was wielding the latter set of weapons.
Had he ventured into the mountains with his more powerful weapons, the demon boar would have been defeated, and the strongest of the Knights of Fianna may have lived a longer life.
Stats
- HP262nd of 41911,362
- ATK179th of 41910,048
- Star generation179th of 41910.2%
- Star absorption234th of 41997
- Death rate163rd of 41931.5%
- NP gain per hit165th of 4190.73%
- NP gain when hit3%
At level 80. Each bar is measured against the highest value in the Fate/Grand Order roster, and the place is out of every servant with that stat, lowest first for Death rate.
HP and ATK by level
- HP
- ATK
Level 80 is the natural cap for a 4-star; 100 takes 10 Holy Grails and 120 another 20 grails plus Servant Coins, before Fou cards (up to 2,000 HP and 2,000 ATK) and Craft Essences.
Cards and generation
- Arts hits
- 3 (16/33/51%)
- Extra hits
- 4 (10/20/30/40%)
- Quick hits
- 4 (10/20/30/40%)
- Buster hits
- 4 (10/20/30/40%)
- Star generation
- 10.2%
- Star absorption
- 97
- Death rate
- 31.5%
- Party cost
- 12
- NP gain per hit (Arts / Quick / Buster / Extra)
- 0.73% / 0.73% / 0.73% / 0.73%
- NP gain when hit
- 3%
Skills
3
Mana Burst (Jump) A
Skill 1LevelApply Evade (1 turn) & increase Quick Card effectiveness (1 turn) & increase ATK (1 turn) for yourself
- Quick Up (self, 1 turn)
- 20%
- ATK Up (self, 1 turn)
- 20%
- Cooldown
- 5 turns

The Knights of Fianna's Honor B
Skill 2LevelIncrease C. Star Gather Rate (3 turns) & gain Critical Stars for yourself
- C. Star Gather Up (self, 3 turns)
- 600%
- Critical Rate Up (self, 3 turns)
- 15%
- C. Star Gain (self)
- 15
- Critical Rate Up (self, 2 turns)
- 10%
- Cooldown
- 5 turns

Beagalltach B+
Skill 3LevelIncrease DEF (3 turns) & increase NP Gain (3 turns) for yourself
- DEF Up (self, 3 turns)
- 30%
- NP Gain Up (self, 3 turns)
- 30%
- Charge Gain (self)
- 1
- Cooldown
- 5 turns
Noble Phantasm
Móralltach
Rank B · Anti-Personnel · 10 hitsDeal significant damage & remove DEF Buffs & medium chance to inflict Death <chance increases with Overcharge> to a single enemy
- Damage (one enemy)
- 2000%
- Death (one enemy)
- 60%
Class and append skills
Increase your Debuff Resist
- Debuff Resist Up
- 21%
Increase your Quick Card effectiveness
- Quick Up
- 8%
Increase Extra Attack Card's effectiveness by 50% for yourself
Begin battle with NP charged at 20% for yourself
Increase ATK against [Saber] class by 30% for yourself
Increase Critical Strength by 30% for yourself
Apply a state that "reduces skill cooldown by 1 after using it" (1 time <2 times at Lv. 6-9, 3 times at Lv. 10>, goes into effect only 1 time per skill)
Ascensions and costumes
4
Ascension 1
Ascension 2
Ascension 3
Ascension 4
Materials
Ascension
- Ascension 1Materials:
Saber Piece x4QP: 50,000 QP - Ascension 2Materials:
Saber Piece x10
Proof of Hero x18QP: 150,000 QP - Ascension 3Materials:
Saber Monument x4
Great Knight Medal x16
Cursed Beast Gallstone x2QP: 500,000 QP - Ascension 4Materials:
Saber Monument x10
Cursed Beast Gallstone x4
Tearstone of Blood x6QP: 1,500,000 QP
2,200,000 QP for all four ascensions.
Skill enhancement (one skill)
- Level 1 to 2Materials:
Gem of Saber x4QP: 100,000 QP - Level 2 to 3Materials:
Gem of Saber x10QP: 200,000 QP - Level 3 to 4Materials:
Magic Gem of Saber x4QP: 600,000 QP - Level 4 to 5Materials:
Magic Gem of Saber x10
Great Knight Medal x8QP: 800,000 QP - Level 5 to 6Materials:
Secret Gem of Saber x4
Great Knight Medal x16QP: 2,000,000 QP - Level 6 to 7Materials:
Secret Gem of Saber x10
Proof of Hero x12QP: 2,500,000 QP - Level 7 to 8Materials:
Proof of Hero x24
Deadly Poisonous Needle x12QP: 5,000,000 QP - Level 8 to 9Materials:
Deadly Poisonous Needle x36
Stake of Wailing Night x60QP: 6,000,000 QP - Level 9 to 10Materials:
Crystallized Lore x1QP: 10,000,000 QP
27,200,000 QP to take one skill from 1 to 10, 81,600,000 QP for all three. Append skills share the same table for their levels, paid in the same materials plus Servant Coins to unlock.
Append skill enhancement (one skill)
- Level 1 to 2Materials:
Gem of Saber x4QP: 100,000 QP - Level 2 to 3Materials:
Gem of Saber x10QP: 200,000 QP - Level 3 to 4Materials:
Magic Gem of Saber x4QP: 600,000 QP - Level 4 to 5Materials:
Magic Gem of Saber x10
Cursed Beast Gallstone x2QP: 800,000 QP - Level 5 to 6Materials:
Secret Gem of Saber x4
Cursed Beast Gallstone x4QP: 2,000,000 QP - Level 6 to 7Materials:
Secret Gem of Saber x10
Tearstone of Blood x3QP: 2,500,000 QP - Level 7 to 8Materials:
Tearstone of Blood x5
Phoenix Feather x4QP: 5,000,000 QP - Level 8 to 9Materials:
Phoenix Feather x12
Scale of Fantasy x20QP: 6,000,000 QP - Level 9 to 10Materials:
Crystallized Lore x1QP: 10,000,000 QP
Palingenesis (Holy Grails)
- 1Level cap: 85QP: 5,000,000 QP
- 2Level cap: 90QP: 6,000,000 QP
- 3Level cap: 92QP: 7,000,000 QP
- 4Level cap: 94QP: 8,000,000 QP
- 5Level cap: 96QP: 9,000,000 QP
- 6Level cap: 98QP: 10,000,000 QP
- 7Level cap: 100QP: 12,000,000 QP
- 8Level cap: 102QP: 12,000,000 QP
- 9Level cap: 104QP: 12,000,000 QP
- 10Level cap: 106QP: 12,000,000 QP
- 11Level cap: 108QP: 12,000,000 QP
- 12Level cap: 110QP: 12,000,000 QP
- 13Level cap: 112QP: 12,000,000 QP
- 14Level cap: 114QP: 12,000,000 QP
- 15Level cap: 116QP: 12,000,000 QP
- 16Level cap: 118QP: 12,000,000 QP
- 17Level cap: 120QP: 0 QP
Each summon of this servant gives 30 Servant Coins.
Bond
- 5,000Bond 2: 9,000Bond 3: 14,000Bond 4: 20,000Bond 5: 230,000Bond 6: 460,000Bond 7: 730,000Bond 8: 1,080,000Bond 9: 1,480,000Bond 10: 2,570,000
Total bond points to reach each level.

Increase all allies' Quick & Buster Card effectiveness by 10% only if [servantName 103500] (Saber) is equipped with this Craft Essence when he is on the field.
Voice lines
45Home (17)
- Bond Level 1
- Ah, the King of Knights. I would like to face you once more.
- Bond Level 2
- What is it, Master? If you have no business, I would like to continue my training.
- Bond Level 3
- It appears that I am a treasonous human. Even while I serve you, I think about someone other than you. How shameless of me...
- Bond Level 4
- You are such a wonderful Master, allowing me to wield my blade as I desire... I am a truly happy man.
- Bond Level 5
- There may come another day where I can battle the King of Knights. But my role right now is to be your sword. I shall always be by your side, Master.
- Conversation 1
- In accordance to the way of the knight, let us head out.
- Conversation 2
- The Master and Servant relationship? Naturally, I will offer my complete devotion to you, Master.
- Conversation 3
- Please command this knight as you wish, Master.
- Likes
- Conversations with one's comrades... Wonderful. I see that is possible here.
- Dislikes
- Jealousy of one's Master... That is...painful...
- About the Holy Grail
- If it's possible, I would like to face the King of Knights. I was no match for her with my Lance, but what do you think of my chances with a blade?
- Conversation 4
- Ah, the King of Knights! Hm. Our blades shall cross once more someday. After all, I'm a Saber this time around!
- Conversation 5
- To stand alongside the Child of Light is quite the honor.
- Conversation 6
- Including myself, there are only a handful of warriors who can wield two swords. And among them, women are rarer still. Miyamoto Musashi...the seeker of the apex of heaven. Truly, her genuine disposition makes her an ideal swordsman... Hm? Tea before we fight? And I need to treat you to some dango? C-could such aggressive behavior mean you are hitting on me!?
- Conversation 7
- Could you be...!? No...I suppose something like this could be possible... Being a Heroic Spirit...a Servant...what a perverse fate... No. I currently serve only Master. My former king, I beg your pardon.
- During an Event
- Master, it appears that something is happening.
- Birthday
- Master, it appears today is your birthday. I have brought some celebratory alcohol. ...You can't drink? M-my apologies...
Growth (5)
- Level up
- So I still had room to grow. [id 103500_0_G011]I suppose I'm not completely worthless.
- Ascension 2
- Yes, I am grateful.
- Ascension 1
- My powers are growing... [id 103500_0_G031]It makes me tremble.
- Ascension 3
- Wonderful. [id 103500_0_G041]As I am now...I might...!
- Ascension 4
- Master. I, Diarmuid, am extremely grateful. [id 103500_0_G051]I now may be able to fight against that King of Knights...!
First summon (1)
- Summon
- Servant, Saber. I am Diarmuid Ua Duibhne of the Knights of Fianna. As a knight, I shall serve you.
Event (21)
- Attack 1
- Sei!
- Attack 2
- Yah!
- Attack 3
- Hah!
- Extra Attack
- Not yet! I'll cut it apart!
- Skill 1
- This is it!
- Skill 2
- Take that!
- Skill 3
- Ooooooh!
- Skill 4
- The dazzlingly handsome...Diarmuid is here!
- Battle Start 1
- Master. This battle is for you.
- Battle Start 2
- Then behold. This is my deadly spear...I mean, blade!
- Victory 1
- Sorry, but a hero can wield both sword and spear. I have no weaknesses.
- Victory 2
- This victory is dedicated to you, Master.
- Damage 2
- Kngh!
- Damage 1
- Ugh!
- Incapacitated 1
- Until we cross swords once more...I will not be defeated...
- Incapacitated 2
- Master...I wish you good fortune in war...
- Command Card 1
- Yeah.
- Command Card 2
- Okay.
- Command Card 3
- Got it.
- Noble Phantasm Card {0}
- All right then.
- Noble Phantasm Card {0}
- Time to fight.
My Room (1)
- Noble Phantasm
- The boundary that divides life and death... [id 103500_0_B051]I shall see even that! [id 103500_0_B052]Haaaaaah!!! [id 103500_0_B053]Found it! [id 103500_0_B054]Móralltach!
Voiced by Hikaru Midorikawa. Illustrated by Azusa.
Art
















