Foreigner
Mysterious Heroine XX (Alter)
★★★★
Star
Introduction
Mysterious Heroine XX (Alter) is a 4-star servant in Fate/Grand Order with the Star attribute. Mysterious Heroine XX (Alter)'s class is Foreigner.
Other servants in Fate/Grand Order with the Star attribute: Altria Caster, Altria Caster (Berserker), Archetype Earth, Attila the San(ta), BB Dubai, Bedivere and 20 more.
Mysterious Heroine XX (Alter)'s banners
All banners- 29 July 2026 to 9 September 2026Archetype Inception BB Dubai Pickup Summon
Profile
Mysterious Heroine XX (Alter) is voiced by Ayako Kawasumi in Japanese. BUNBUN drew her.
Stories
7Character details
"Ex... Now that's a name I've not heard in a long time."
The vortex of destiny shredded her memories, bonds, and hope... Even so, the pride she takes in her role as a galactic villain has dragged her back from the crushing abyss.
Clad in wicked armor, she returns as the Villain Foreigner in a form suited to the gravitic summer.
Profile 1
Height/Weight: 154 cm, 48 kg
Source: Cosmo Guardian trilogy
Region: Servantverse
Alignment: Chaotic-Evil
Sub-Attribute: Star
Gender: Female
Her height remains unchanged, but her weight has increased.
In her own words, her drive as a villain is "gravity," and when it comes to, sweetness, she's "not guilty."
Profile 2
XX Alter is the form taken by the mysterious Heroine X (Alter) after growing both mentally and physically through numerous battles in the Servantverse.
She possesses the dignity of a battle-hardened villain, as well as the tenacity and resourcefulness born of having tasted the bitterness of defeat. Or so she should. Or at least that's what we hope.
Idol X (Alter), who branched off from X (Alter) earlier, is a personality from an alternate history, and XX (Alter) does not possess her memories or experiences.
However, when she was summoned to Chaldea, some of those elements seem to have seeped in, leaving her a bit confused.
If X (Alter) is a gentle house cat, then XX (Alter) is a semi-feral cat who uses her wildness as a weapon.
In reality, she's the kind of woman you might spot late at night at the tables of a neighborhood convenience store; a book-loving, snack-loving, laid-back older sister type with an unknown occupation.
Profile 3
Ex has overcome countless deadly situations and is now a full-fledged villain (self-proclaimed).
That aside, it seems she's always wanted to try wearing a swimsuit...even though she once declared she would absolutely never take her clothes off?
"Well, this is...suited for infiltrating scorching tropical regions. You know, I think there are battlefields out there where having the right thing to wear really does count...don't you think?"
Toward the end of the Cosmo Guardian Trilogy, she faced off against Heroine XX.
As a result, she was swallowed by a black hole and defeated, and was believed to have perished completely.
However, even as her Spirit Origin was torn apart at the event horizon, she selected the core that constituted her own being and managed to escape by sacrificing the Black Knight.
The XX of Chaldea likely still does not know of this resurrection.
She also lost a portion of her past memories during her escape.
Profile 4
Quantum Armor: B
An assault-type powered suit directly linked to XX (Alter)'s magical energy converter, the Altereactor.
A semi-autonomous magical computer that amplifies incantations and summons gravitational fields.
Gravity Manipulation: B
Heavy Object.
Constructs a magical virtual black hole to manipulate gravity at will.
For some reason, however, it is impossible to reduce one's own body weight.
The Ultimate Evil: A
Villains Terminate.
To live is the ultimate evil.
Leave the claw marks of life across the galaxy, and seize all the treasures...and sweets, too.
Profile 5
『Genesis Flash, Disorder into Chaos』
Rank: A+
NP Type: Anti-Personnel
Range: 9–99
Max Targets: 1
A flash of destruction and creation that unleashes a torrent of magical energy collapsed to its absolute limit via magical fractal circuits engraved on quantum armor.
It is a pseudo-cosmic form of the creation of the universe.
If the flash of creation is disrupted, chaos ensues. The Earth nebula binds the will of heaven.
While her catchphrases (such as "Darkness Cauldron" or "Ether Maelstrom") vary depending on how hungry she is, her true name is "Genesis Flash, Disorder into Chaos."
"You know, like when you pop those rice snacks that blow up really big?"
Additional profile
Though she is a villain who commits evil deeds, she serves her Master faithfully as a knight and shows the respect befitting a mage.
Amidst this, there are moments when she unconsciously overlaps her image of her Master with her mentor Agravain.
Her reaction to the nickname "Ex" is also somewhat muted, except when it comes to the Mysterious Heroine X (XX) she named.
That might be the key to regaining her memories, and the signal to resume the final battle.
Stats
- HP199th of 41912,171
- ATK225th of 4199,603
- Star generation69th of 41914.8%
- Star absorption106th of 419145
- Death rate38th of 4198%
- NP gain per hit213th of 4190.65%
- 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
- 4 (10/20/30/40%)
- Extra hits
- 5 (6/13/20/26/35%)
- Quick hits
- 4 (10/20/30/40%)
- Buster hits
- 4 (10/20/30/40%)
- Star generation
- 14.8%
- Star absorption
- 145
- Death rate
- 8%
- Party cost
- 12
- NP gain per hit (Arts / Quick / Buster / Extra)
- 0.65% / 0.65% / 0.65% / 0.65%
- NP gain when hit
- 3%
Skills
3
Quantum Armor B
Skill 1LevelApply Invincible (2 times, 3 turns) & increase ATK (3 turns) & gain C. Stars each turn (3 turns) for yourself + Gain C. Stars
- ATK Up (self, 3 turns)
- 20%
- C. Star Gain Per Turn (self, 3 turns)
- 15
- Critical Rate Up (self, 3 turns)
- 10%
- C. Star Gain (self)
- 15
- Critical Rate Up (self, 2 turns)
- 20%
- Cooldown
- 7 turns
Gravity Manipulation B
Skill 2LevelIncrease Buster Card effectiveness (3 turns) & Buster Card C. Star Gather Rate (3 turns) & Critical Strength (3 turns) for yourself
- Buster Up (self, 3 turns)
- 30%
- C. Star Gather Up: Buster (self, 3 turns)
- 500%
- Critical Rate Up: Buster (self, 3 turns)
- 20%
- Critical Up (self, 3 turns)
- 30%
- Cooldown
- 6 turns
Villains Terminate A
Skill 3LevelDecrease Charge for all enemies + increase NP Gauge for yourself depending on number of enemies + Increase NP Gauge & increase NP Gain (3 turns) for yourself
- Charge Loss (all enemies)
- 1
- NP Loss (all enemies)
- 20%
- NP Gain (self)
- 10%
- NP Gain (self)
- 20%
- Charge Gain (self)
- 2
- NP Gain Up (self, 3 turns)
- 30%
- Cooldown
- 7 turns
Noble Phantasm
Genesis Flash, Disorder into Chaos
Rank A+ · Anti-Personnel · 7 hitsIncrease NP Strength (1 turn) <effect increases with Overcharge> & apply Special Attack [Lawful] (1 turn) & apply Special Attack [Good] (1 turn) for yourself + Deal significant Special Attack damage to a single [Ruler-class Servant] enemy + Restore your NP Gauge
- NP Strength Up (self, 1 turn, by Overcharge)
- 10%
- STR Up vs. Lawful (self, 1 turn)
- 30%
- STR Up vs. Good (self, 1 turn)
- 30%
- Damage (extra against the target traits) (one enemy)
- 1000%
- NP Gain (self)
- 20%
- Charge Gain (self)
- 1
Class and append skills
Gain 2 C. Stars each turn & increase Debuff Resist for yourself
- C. Star Gain Per Turn
- 2
- Debuff Resist Up
- 4%
Slightly increase your Buster Card effectiveness
- Buster Up
- 6%
Increase your Debuff Resist
- Debuff Resist Up
- 17.5%
Increase your Debuff Resist
- Debuff Resist Up
- 21%
Increase Extra Attack Card's effectiveness by 50% for yourself
Begin battle with NP charged at 20% for yourself
Increase ATK against [Assassin] 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:
Eternal Gear x8
Claw of Chaos x8QP: 50,000 QP - Ascension 2Materials:
Shell of Reminiscence x8
Cursed Beast Gallstone x8QP: 150,000 QP - Ascension 3Materials:
Aurora Steel x8
Heart of the Foreign God x8QP: 500,000 QP - Ascension 4Materials:
Reactor Core of Dawn x8
Remnants of Madness x8QP: 1,500,000 QP
2,200,000 QP for all four ascensions.
Skill enhancement (one skill)
- Level 1 to 2Materials: Eternal Gear x8QP: 100,000 QP
- Level 2 to 3Materials:
Octuplet Crystals x8QP: 200,000 QP - Level 3 to 4Materials:
Black Beast Grease x10QP: 600,000 QP - Level 4 to 5Materials:
Mystic Gunpowder x10QP: 800,000 QP - Level 5 to 6Materials: Aurora Steel x10QP: 2,000,000 QP
- Level 6 to 7Materials: Reactor Core of Dawn x12QP: 2,500,000 QP
- Level 7 to 8Materials:
Fragment of a Twinkling Star x12QP: 5,000,000 QP - Level 8 to 9Materials:
Ether Converger x12QP: 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:
Void's Dust x8QP: 100,000 QP - Level 2 to 3Materials:
Serpent Jewel x8QP: 200,000 QP - Level 3 to 4Materials: Claw of Chaos x10QP: 600,000 QP
- Level 4 to 5Materials:
Eternal Ice x10QP: 800,000 QP - Level 5 to 6Materials: Cursed Beast Gallstone x10QP: 2,000,000 QP
- Level 6 to 7Materials: Heart of the Foreign God x12QP: 2,500,000 QP
- Level 7 to 8Materials: Remnants of Madness x12QP: 5,000,000 QP
- Level 8 to 9Materials:
Universal Cube x12QP: 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 50 Servant Coins.
Bond
- 9,125Bond 2: 15,250Bond 3: 21,375Bond 4: 27,500Bond 5: 290,000Bond 6: 580,000Bond 7: 880,500Bond 8: 1,190,000Bond 9: 1,505,000Bond 10: 2,595,000
Total bond points to reach each level.
Apply 15% Special Attack [Lawful] & 15% Special Attack [Good] to all allies only if [servantName 2501600] (Foreigner) is equipped with this Craft Essence when she is on the field.
Voice lines
118Home (8)
- Bond Level 1
- Now loading. Now loading...
- Bond Level 2
- AFK. Repairing suit.
- Bond Level 3
- Entering sleep mode... (Zzz...) Hey, that's my manjyu...
- Bond Level 4
- Achievement unlocked. Heart achievement unlocked. Hehe.
- Bond Level 5
- Magical energy levels down. Requesting recharge, Magus. It's okay. Don't be scared.
- Conversation
- The time to fight...is now.
- During an Event
- Warning, warning. Incoming onslaught. Preparing to return fire.
- Birthday
- Happy birthday to you. Congratulations on leveling up again.
Home (17)
- Bond Level 1
- I've been reading a lot of books lately. I think it's been helping me fill in the cracks in my memory. On sunny days, I like to read on a park bench. On rainy days, I read by the window. On cold, snowy days, I read in the kotatsu. And on hot summer days, I read at the beach. Do you like reading too, Master? If you have any recommendations, I'm all ears.
- Bond Level 2
- I should've had a partner by my side...a comrade I've known for a long time, even when I wish I hadn't. But I don't know where they are now. If I remember correctly, they were a dark Voloid that kind of looked like a bucket...
- Bond Level 3
- Hmm. I think my Alternium conversion rate has fallen. Times like this call for a cup of Moon Dubai souvenir coffee. Would you like a cup too, Master? ...What? Is something wrong?
- Bond Level 4
- Ego lies at the heart of every villain. In other words, everything we do, we do for our own benefit. That's why I'm willing to try anything. In order to stay true to myself, I'm willing to commit any number of disgraceful mistakes. That's right. Even things like protecting Humanity and helping people.
- Bond Level 5
- Phew. I wish I could sneak away and go to the beach...
- Conversation 1
- There's nothing quite like reading outside, Master. You should try it.
- Conversation 2
- Huh, I just realized. When you compare our relative time spans, I'm just a little bit older than you, Master. So, that makes me something of a big sister figure. Hmm, I see. Naturally, big sister figures would never hog all the sweets to themselves. So of course I'll dole them out fair and squa... Squa... Hmm. On second thought, maybe we should treat these things on a sweet-by-sweet basis.
- Conversation 3
- This contract is but a fleeting, temporary thing. And yet, these all-too short days could end up changing everything.
- Likes
- I do love eating sweets by myself, but... there's also something about eating them with someone else that fills me up in a different way. Break out the sweets with a b-b-b-big bang♪ ...Huh? What's this? I don't know this song, but...
- Dislikes
- You might not understand this... In fact, I'm sure you won't. But. You know that film they use to seal jars and bottles? I can't stand them. Or rather, I'm terrified of peeling them off. They always have a little pointy part that feels like it's going to get right underneath my fingernail...
- About the Holy Grail
- I guess neither you, nor the Holy Grail, will grant my blood-soaked request. But, if possible...I hope I'll get to see them again someday...
- Conversation 4
- I thought that seeing my past self would feel more...disturbing. But, oddly...it feels like I'm looking at someone else entirely. I even find myself getting sentimental and wishing she would stay just the way she is, even though I know she's me. Weird, right? Hehe.
- Conversation 5
- Mysterious...Idol? I don't think I have any memories of that. Ghh, so bright... A rainbow dwarf supernova, huh. I don't know if I could get along with someone like that. How did this even happen to me? It's so strange.
- Conversation 6
- XX... I'm so glad I got to see you again. I've got a ton of pent-up resentment towards you, but I'm not about to turn over a new leaf. Where would be the fun in that? Now, let's go. The time of battle is at hand.
- Conversation 7
- Oh? I guess people like me from different spacetimes aren't the only kinds of Foreigners out there. ...The agent of an evil god? What's that all about? Well, don't worry. Evil god or not, as long as it bleeds, I'll find a way to eat it.
- During an Event
- Oh. There's an event happening right now? Ugh, what a pain... You go on without me, Master. I still have a mountain of books I'm trying to get through. No go? Yeah, that figures.
- Birthday
- We should celebrate today, Master. I, um...forgot to get you a thoughtful present, but I do have some very special sweets. Here. Happy birthday. I hope you stay healthy, and that you find something you can obsess over. May the Alternium be with you...
Growth (3)
- Level up 1
- Bloody hell.
- Level up 2
- Yaaah.
- Level up 3
- Cheers, Magus.
Growth (7)
- Level up 1
- That was a treat.
- Level up 2
- This is so good.
- Level up 3
- I can keep going, you know.
- Ascension 1
- I guess I should introduce myself again. [id 2501600_1_G031]I'm Mysterious Heroine XX Alter. [id 2501600_1_G032]I suppose I've also been known as "Ex," [id 2501600_1_G033]though my memories of that are hazy. [id 2501600_1_G034]In the final season, [delay 2.0]I arrived at the site of the final showdown stronger than ever, [id 2501600_1_G035]became the ultimate ether universe villain, [id 2501600_1_G036]and now, I get very hungry, very quickly. [id 2501600_1_G037]...Huh? That part's nothing new for me?
- Ascension 2
- My quantum armor is powered by my own Altereactor. [id 2501600_1_G022]Quantum linked drones. Twin death scythes. [id 2501600_1_G023]This is the conclusion I arrived at during my search for power. [id 2501600_1_G024]Hm? [delay 1.6]Wielding a scythe in each hand makes me look like a huge villain? [id 2501600_1_G025]Hehe, I know. That's the best part.
- Ascension 3
- I can't believe it... [delay 2.1]I had no idea I held such possibilities. [id 2501600_1_G041]Me, spending summer vacation in a swimsuit. [id 2501600_1_G042]I always thought such a peaceful dream was forever beyond my reach... [id 2501600_1_G043]J-just so you know, this, uh, totally isn't a tan. [id 2501600_1_G044]This is just from... Um... [delay 2.5]Oh, I know. Eating too many sweet beans. [id 2501600_1_G045]I-if you thought I got tan because I've been running around in my swimsuit [delay 3.1]out of sheer excitement, y-you, uh, couldn't be more wrong!
- Ascension 4
- Farewell, my old self who was always cold. [id 2501600_1_G051]Hello, my new self full of precious summer memories. [id 2501600_1_G052]...Okay. Now I can fight to the very end without any regrets.
First summon (1)
- Summon
- XX Alter. My class is Foreign[line 2]Idol? No, wait. I'm pretty sure I was a Saber. I wear black armor and wield twin death scythes, so you may call me "the one who harvests all crops." By "crops," I mean things like fate, foreshadowing... Oh, and food.
Event (39)
- Battle Start 1
- Go to hell.
- Battle Start 2
- Iron, blood, death!
- Battle Start 3
- Get in line. It's time to begin the harvest.
- Skill 1
- Your pleasure.
- Skill 2
- Standby.
- Skill 3
- Surprise.
- Skill 4
- As you wish.
- Skill 5
- I am ready.
- Skill 6
- Last resort.
- Command Card 1
- Foreigner...
- Command Card 2
- Sure.
- Command Card 3
- You got it.
- Noble Phantasm Card 1
- Forbidden strike.
- Noble Phantasm Card 2
- Magical energy, to me.
- Noble Phantasm Card 3
- World's End.
- Attack 1
- Slash.
- Attack 2
- Quadruple.
- Attack 3
- Twin Scythes.
- Attack 4
- Cross Scythes.
- Attack 5
- Devastation.
- Attack 6
- Walk the dead.
- Attack 7
- Murderous rush.
- Attack 8
- Shortbread.
- Attack 9
- Mince pie.
- Attack 10
- Crumble.
- Attack 11
- Trifle.
- Attack 12
- Flapjacks.
- Attack 13
- Fairy cake.
- Attack 14
- Sticky taffy.
- Extra Attack 1
- Punish...gravity.
- Extra Attack 2
- Lemon drizzle...bake off.
- Damage 1
- Damaged.
- Damage 2
- Urk.
- Damage 3
- It's not nearly enough.
- Damage 4
- Ghh.
- Incapacitated 1
- Requesting...reboot...
- Incapacitated 2
- My body feels...heavy...
- Victory 1
- Good job. That was some brilliant directing.
- Victory 2
- Uh oh. You'd better praise me before I blow up, Master.
Event (39)
- Battle Start 1
- Let's settle this once and for all.
- Battle Start 2
- Let's get this war started.
- Battle Start 3
- Summer is for hot battles and cold sweets!
- Skill 1
- This will work.
- Skill 2
- Power, connect.
- Skill 3
- Ugh... Too hard.
- Skill 4
- Here.
- Skill 5
- Shall we?
- Skill 6
- Ack!
- Command Card 1
- Yes.
- Command Card 2
- Understood.
- Command Card 3
- As you wish.
- Noble Phantasm Card 1
- Whatever it takes.
- Noble Phantasm Card 2
- I'm going to destroy you.
- Noble Phantasm Card 3
- Go to 14.
- Attack 1
- Hiya!
- Attack 2
- Haaa!
- Attack 3
- Hrn!
- Attack 4
- Shatter!
- Attack 5
- Kaslash!
- Attack 6
- Good boy.
- Attack 7
- Heh heh heh heh, ha!
- Attack 8
- Throwing.
- Attack 9
- Opening fire.
- Attack 10
- I'll skewer you.
- Attack 11
- I'll cut them down.
- Attack 12
- Mow them down.
- Attack 13
- Demolish them.
- Attack 14
- Ramming speed.
- Extra Attack 1
- Raise...unlimited!
- Extra Attack 2
- On three... Three!
- Damage 1
- I got careless...
- Damage 2
- Khh.
- Damage 3
- No way...
- Damage 4
- Uh-oh.
- Incapacitated 1
- Master... Before I go...could you...
- Incapacitated 2
- Haha... I had...fun...
- Victory 1
- Snack time. Let's go, Master.
- Victory 2
- Did I...manage to become...your heroine?
My Room (2)
- Noble Phantasm 1
- Genesis Flash, Disorder into Chaos. [id 2501600_0_B051]The will of the divine decrees the earth and nebulae. [id 2501600_0_B052]Karma comes full circle, and all things remain in flux. [id 2501600_0_B053]Ether...Maelstrom!
- Noble Phantasm 2
- Blast off. [id 2501600_0_B801]In the name of the hidden Pendragon, [id 2501600_0_B802]I hold the sins and calamities of the Seventh Heaven [delay 1.8]in the palm of my hand! [id 2501600_0_B803]O wandering stars, obey me! [id 2501600_0_B804]Nega Nebula!
My Room (2)
- Noble Phantasm 1
- Genesis Flash, Disorder into Chaos. [id 2501600_1_B051]The will of the divine decrees the earth and nebulae. [id 2501600_1_B052]Sin is born of but outweighs righteousness. [id 2501600_1_B053]Darkness...Cauldron.
- Noble Phantasm 2
- Altereactor seal...broken! [id 2501600_1_B801]As the ancient king crowned with the very galaxy! [id 2501600_1_B802]Dyad, Cross, [id 2501600_1_B803]Great Attract!
Voiced by Ayako Kawasumi. Illustrated by BUNBUN.
Art
