Mysterious Heroine X (Alter)

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This page is for the 5★ Berserker version. For the 5★ Assassin, see Mysterious Heroine X; for the 4★ Foreigner, see Mysterious Heroine XX.

5★
155
Berserker
Mysterious Heroine X (Alter) Icon Star.png
謎のヒロインX〔オルタ〕
Attack
1,717 - 11,113 (12,165)
HP
2,079 - 14,175 (15,529)
Cost
16
Star Absorption
9
Star Generation
5%
NP Charge Attack
1.07%
NP Charge Defense
5%
Death Rate
37.3%
Growth Curve
Semi S
Attribute
Star
Alignment
Neutral-Evil
Available during the second Valentine's Day event.

Traits: Servant, Humanoid, Dragon, Arthur, Altria Face, King, Not Weak to Enuma Elish, FGO Newcomer, Under 165cm, Western, Female, Neutral-Evil
Also Known As: MHX Alter

CC QQABB.png
Number of Hits: Icon quick.png 3 | Icon arts.png 2 | Icon Buster.png 4 | Icon extra.png 5


Active Skills

Starts with this Skill

∞ Chocolate EX
∞黒餡子 EX
Skill Icon Heal.png
  • Increase your HP Recovery amount (3 turns)
  • Restore HP for yourself

Targets: Self
Cooldown: 7 / 6 / 5

Level 1 2 3 4 5 6 7 8 9 10
Healing +
Heal +
20%
1000
23%
1100
26%
1200
29%
1300
32%
1400
35%
1500
38%
1600
41%
1700
44%
1800
50%
2000
Icon Servant 155.png

Upgrades after Rank Up Quest, Replaces ∞ Chocolate
∞ Chestnut Paste EX
∞栗餡子 EX
Skill Icon Heal.png
  • Increase your HP Recovery amount (3 turns)
  • Restore HP for yourself
  • Apply HP Recovery each turn for yourself (1000 HP, 3 turns)
  • Increase your Quick card Critical Damage (1 time, 3 turns)
  • Increase your Arts card Critical Damage (1 time, 3 turns)
  • Increase your Buster card Critical Damage (1 time, 3 turns)

Targets: Self
Cooldown: 7 / 6 / 5

Level 1 2 3 4 5 6 7 8 9 10
Healing +
Heal +
Card Crit.Dmg +
20%
1000
20%
23%
1100
21%
26%
1200
22%
29%
1300
23%
32%
1400
24%
35%
1500
25%
38%
1600
26%
41%
1700
27%
44%
1800
28%
50%
2000
30%
Icon Servant 155.png

Unlocks at 1st Ascension

Intuition C
直感 C
Skill Icon CStar Gain.png
  • Gain a large amount of Critical Stars

Targets: Self
Cooldown: 7 / 6 / 5

Level 1 2 3 4 5 6 7 8 9 10
Critical Stars+ 4 5 6 7 8 9 10 11 12 14
Icon Servant 155.png

Upgrades after Rank Up Quest, Replaces Intuition

Ephemeral Shadowless Blade C+
刹那無影剣 C+
Skill Icon Quick Up.png
  • Increase your Quick Card effectiveness. (3 turns)
  • Gain Critical Stars.

Targets: Self
Cooldown: 7 / 6 / 5

Level 1 2 3 4 5 6 7 8 9 10
Quick +
Stars +
20%
10
21%
11
22%
12
23%
13
24%
14
25%
15
26%
16
27%
17
28%
18
30%
20
Icon Servant 155.png

Unlocks at 3rd Ascension

King's Invisible Hand C
王の見えざる手 C
Skill Icon CStar Gather Down.png
  • Increase all allies' ATK. (3 turns)
  • Reduce one ally's Critical Star Gather Rate by 100%. (1 turn)

Targets: Allies
Cooldown: 7 / 6 / 5

Level 1 2 3 4 5 6 7 8 9 10
Attack+ 10% 11% 12% 13% 14% 15% 16% 17% 18% 20%
Icon Servant 155.png


Passive Skills

Madness Enhancement C
Skill Icon Madness Enhancement.png
Increase your Buster Card effectiveness by 6%.

Altreactor A
Skill Icon Debuff Res Up.png
Increase your Debuff Resist by 20%

Backtotop.png

Noble Phantasm

Cross-Calibur
Black Dragon Twinblade of Victory

Command Card Quick.png
  • Deals high damage to a single target.
  • Overcharge: Extra damage to Saber class servant

Targets:
Type: Anti-Army
Hits: 9

Level 1 2 3 4 5
Damage + 1200% 1600% 1800% 1900% 2000%
Overcharge 100% 200% 300% 400% 500%
Extra Damage + 150% 162.5% 175% 187.5% 200%

Ascension

Ascension QP Items
1st
100,000
Icon Item Berserker Piece.png5
2nd
300,000
Icon Item Berserker Piece.png12
Icon Item Dragon Fang.png18
3rd
1,000,000
Icon Item Berserker Monument.png5
Icon Item Great Knight Medal.png20
Icon Item Primordial Lanugo.png3
4th
3,000,000
Icon Item Berserker Monument.png12
Icon Item Primordial Lanugo.png6
Icon Item Dragon's Reverse Scale.png5

Skill Reinforcement

Level QP Items
2nd
200,000
Icon Item Gem of Berserker.png5
3rd
400,000
Icon Item Gem of Berserker.png12
4th
1,200,000
Icon Item Magic Gem of Berserker.png5
5th
1,600,000
Icon Item Magic Gem of Berserker.png12
Icon Item Great Knight Medal.png10
6th
4,000,000
Icon Item Secret Gem of Berserker.png5
Icon Item Great Knight Medal.png20
7th
5,000,000
Icon Item Secret Gem of Berserker.png12
Icon Item Dragon Fang.png12
8th
10,000,000
Icon Item Dragon Fang.png24
Icon Item Black Beast Grease.png4
9th
12,000,000
Icon Item Black Beast Grease.png11
Icon Item Cursed Beast Gallstone.png10
10th
20,000,000
Icon Item Crystallized Lore.png

Stats

Strength
A
Endurance
B
Agility
B
Mana
A+
Luck
C
Noble Phantasm
A++

pChart

Bond Level

Bond Level 1 2 3 4 5 6 7 8 9 10
Bond Required 2,000 3,000 4,000 5,000 6,000 230,000 250,000 300,000 380,000 438,000
Total Bond 2,000 5,000 9,000 14,000 20,000 250,000 500,000 800,000 1,180,000 1,618,000
Bond 10 Reward Icon CE 0429.png Dark Knight-Kun
When equipped on Mysterious Heroine X (Alter),

While she's on the field,
all enemy's Sabers on the field will receive 20% more damage.

Using
Icon Item Chaldea's Flame of Dreams.png
allows you to unlock Bond Level 11 through 15 for the chosen Servant.
Bond Level 11 12 13 14 15
Bond Required 1,090,000 1,230,000 1,360,000 1,500,000 1,640,000
Total Bond 2,708,000 3,938,000 5,298,000 6,798,000 8,438,000

Lore

CHARACTER INFO


A visiting villain from the Servant Universe.
Orphaned and alone, she is a Berserker bookworm with a burning Mana Conversion Altereactor Engine for a heart.
An ultimate Anti-Anti Saber Weapon, sworn to defeat Mysterious Heroine X at all cost.

"What the heck are you talking about?"
...Don't think. Feel.

BOND 1

Height: 154cm
Weight: 42kg
Origin: 2019 Valentine's Event
Region: The Servant Universe
Alignment: Neutral-Evil
Gender: Female
The fallen knight, Lord Pendragon.
Her prized Evil Sacred Swrd Nerco-calibur was purchased from a shady online shop.


BOND 2

"I'll fight. Until the day I defeat Heroine X and paint the galaxy with the villians' darkness."

Her trusty Voloid K6-X4, a.k.a. "Mini Black Knight," watches her as she shouts her declaration.
One could also say that the Voloid is just goofing off on the job.

BOND 3

A young girl who is serious and reserved.
Her favorite food is anything sweet. Given the opportunity, she asks for high-end Japanese sweets.
Since she's always hungry, it can get expensive
On her days off, she does not move one step from the Black Round Table kotatsu, preferring to spend her time reading or listening to music.

She is a bit of a slob and she finds most things to be bothersome
While she responds with sarcasm whenever someone gives her orders, she is, oddly enough, quite obedient.
Its easy if you bribe her with sweet things.

BOND 4

An alternium crystal embedded within her Mana Conversion Altereactor Engine converts calories into magical energy.
"Japanese Wasanbon sugar's elemental balance has the best conversion rate. Oh, and I want green tea," she emphasizes.
Her glasses are a necessity, to rest her boosted optic nerves. When she wears them, her vision actually get worse.

She possesses a mysterious item called "∞ (Infinity) Black Bean Paste." It is made from six atomic energies: desire (soul), sugar (power), store (space), SRP (reality), production (time), and demand (mind). It is said to grant its owner infinite power, but X Alter doesn't really get it.

BOND 5

The last successor of the now-annihilated dark chivalric order, the Dark R.O.U.N.D.S.
Her given title is Lord Pendragon.

She has various special moves, such as her telekinetic "Alter Choke" and the "Alter Lightening" she shoots from her fingers. Both look a little familiar.
Her Evil Scared Sword Necro-calibur, which emits red magical energy, can freely change its form.
Twin Blades or even a chainsaw form are possible, but it often breaks and explodes.
"The coooler a weapon looks, the weaker it is," seems to be the common understanding across all the universe.
Ultimately, a regular longsword is a safer bet.

???

An artificial Servant created by forbidden magic, based on the X factor extracted from Mysterious Heroine X.
Eventhough it tries to eliminate Heroine X instinctively, that person isn't aware that these feelings of self-loathing and self-destruction lies in her Alter nature.

Her dangerous impulses to run amok may stay stable if the Master is a kind one.

CHARACTER INFO


サーヴァントユニヴァースより来訪した天涯孤独のヴィラン(悪役)。
世にも珍しい文系のバーサーカー。
魔力転換がオルトリアクターを燃やし謎のヒロインXの打倒を誓う、対・対セイバー用決戦兵器。

もう訳が分からない、だって?
───考えるな。感じるんだ。


BOND 1

没落の騎士ペンドラゴン卿
身長/体重:154cm・42kg
出典:2017年バレンタインイベント
地域:サーヴァント界
属性:中立・悪  性別:女性
じまんのつるぎ『邪聖剣ネクロカリバー』はあやしいつうはんでかった。

BOND 2

「闘うよ。ヒロインXを倒し、
 宇宙をヴィランの闇色に染める、その日まで」

そう誓う彼女をヴォロイド“K6ーX4”
通称“黒騎士くん”はいつも陰から見守っている。
適当に隠れてサボっているとも言う。

BOND 3

まじめでひかえめな態度の少女。
好物は甘味。隙あらば高級和菓子を所望してくる。
割と金のかかる腹ぺこ。
オフの日は黒い円卓型のこたつから一歩も出ず、読書をしたり音楽を聞いたりして過ごす。

基本ずぼらで面倒くさがり。
他人からの命令や指図には、皮肉を返しつつもそれなりに素直に従うのは不思議。
甘い物で釣ると早い。

BOND 4

魔力転換炉オルトリアクターは、体内に秘めるオルタニウム結晶を触媒として、カロリーを魔力へ変換する。
「和三盆の成分バランスが最大効率です。あとお茶もほしいです」と彼女は強調する。
眼鏡はブーストされた視神経を休ませるために必要なアイテム。掛ける間はむしろ視力が落ちる。

彼女が所持している謎のアイテム「∞(インフィニティ)黒餡子」は欲求(ソウル)、糖分(パワー)、売り場(スペース)、原価(リアリティ)、製作(タイム)、需要(マインド)という六つの原始力によって作られたもので、持つ者に無限の力を与えるというがX・オルタはよく分かっていない。

BOND 5

すでに壊滅し失われた暗黒の騎士団ダーク・ラウンズに連なる最後の生き残り。
付与されし称号はペンドラゴン卿。

念動力“オルタ・チョーク”、腕先から魔力を放出する絶技“オルト・ライトニング”など、どこかで見たような多彩な技を駆使する。
赤い魔力を放つ“邪聖剣ネクロカリバー”はツインブレードやチェーンソーなど自在に変形するが、よく壊れて爆発する。
格好いい武器ほどあまり強くない、というのは宇宙共通の掟らしい。
やはり何の変哲もないロングソードこそ至高。

Extra: Clear Interlude

「謎のヒロインX」から抽出されたX因子を元に、禁断の魔術によって錬成された人造サーヴァント。
本能的にヒロインXを排除しようとするが、その原因がオルタゆえの自己嫌悪と自己破壊の感情にあるとは本人も気づいていない。

暴走する危険な衝動は、良きマスターを持つことで安定をみせるかもしれない。

CHARACTER INFO


A Villain (antagonist), the last of her kind, on a visit from the Servant Universe.
A hard-to-come-by literary Berserker.
An Anti-Anti-Saber final weapon who swears to defeat Mysterious Heroine X whilst fuelling her magical energy converter, the Altreactor.

You don't know what's going on anymore, you say?
---Don't think. Feel.

BOND 1

Height: 154cm
Weight: 42kg
Origin: 2019 Valentine's Event
Region: The Servant Universe
Alignment: Neutral-Evil
Gender: Female
The fallen knight, Lord Pendragon.
Her prized Evil Sacred Swrd Nerco-calibur was purchased from a shady online shop.


BOND 2

"I'll fight. Until the day I defeat Heroine X and paint the galaxy with the villians' darkness."

Her trusty Voloid K6-X4, a.k.a. "Mini Black Knight," watches her as she shouts her declaration.
One could also say that the Voloid is just goofing off on the job.

BOND 3

A young girl who is serious and reserved.
Her favorite food is anything sweet. Given the opportunity, she asks for high-end Japanese sweets.
Since she's always hungry, it can get expensive
On her days off, she does not move one step from the Black Round Table kotatsu, preferring to spend her time reading or listening to music.

She is a bit of a slob and she finds most things to be bothersome
While she responds with sarcasm whenever someone gives her orders, she is, oddly enough, quite obedient.
Its easy if you bribe her with sweet things.

BOND 4

An alternium crystal embedded within her Mana Conversion Altereactor Engine converts calories into magical energy.
"Japanese Wasanbon sugar's elemental balance has the best conversion rate. Oh, and I want green tea," she emphasizes.
Her glasses are a necessity, to rest her boosted optic nerves. When she wears them, her vision actually get worse.

She possesses a mysterious item called "∞ (Infinity) Black Bean Paste." It is made from six atomic energies: desire (soul), sugar (power), store (space), SRP (reality), production (time), and demand (mind). It is said to grant its owner infinite power, but X Alter doesn't really get it.

BOND 5

The last successor of the now-annihilated dark chivalric order, the Dark R.O.U.N.D.S.
Her given title is Lord Pendragon.

She has various special moves, such as her telekinetic "Alter Choke" and the "Alter Lightening" she shoots from her fingers. Both look a little familiar.
Her Evil Scared Sword Necro-calibur, which emits red magical energy, can freely change its form.
Twin Blades or even a chainsaw form are possible, but it often breaks and explodes.
"The coooler a weapon looks, the weaker it is," seems to be the common understanding across all the universe.
Ultimately, a regular longsword is a safer bet.

Clear Interlude

An artificial Servant created by forbidden magic, based on the X factor extracted from Mysterious Heroine X.
Eventhough it tries to eliminate Heroine X instinctively, that person isn't aware that these feelings of self-loathing and self-destruction lies in her Alter nature.

Her dangerous impulses to run amok may stay stable if the Master is a kind one.

Featured in the Following Craft Essences

Icon CE 0847.png
Icon CE 1112.png

Trivia

  • The Otaku Version of Mysterious Heroine X from April Fool. Rather than having the same personality what they have is the opposite.
  • She is the 6th Alter Servant overall and the first ★5 Altria Alter Servant.
  • Prior to her appearance in the game she was mentioned in FGO material as "「謎のセーラーX」".
  • オルト・ライトニング (Alter Lightning) is the name of her lightning attack.
  • オルト・ライトニング (Alter Lightning) and her double-bladed lightsaber is a parody of Red Lightning and the double-bladed lightsaber used by Darth Maul in Star Wars.
  • Her Extra Attack animation is also parody of Star Wars Episode 1 when Darth Maul killed Qui-Gon Jinn. The Video : https://www.youtube.com/watch?v=ojXpHwhIqO8