Mysterious Heroine X (Alter)

General

Dialogue

Interlude

Rank Up

Campaigns

Trial Quest

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

5★ 155 Mysterious Heroine X (Alter) 謎のヒロインＸ〔オルタ〕
VA: Ayako Kawasumi | Art: BUNBUN	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 Number of Hits: 3 | 2 | 4 | 5
Active Skills Passive Skills Noble Phantasm Ascension Skill Up Stats Bond Level Lore Trivia

Active Skills

Starts with this Skill

∞ Chocolate EX ∞黒餡子 EX
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

Upgrades after Rank Up Quest, Replaces ∞ Chocolate. Released during Interlude Campaign Part 9.

∞ Chestnut Paste EX ∞栗餡子 EX
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%

Unlocks at 1st Ascension

Intuition C 直感 C
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

Upgrades after Rank Up 1, Replaces Intuition. Released during Servant Rank Up Quests Part VII.

Ephemeral Shadowless Blade C+ 刹那無影剣 C+
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

Unlocks at 3rd Ascension

King's Invisible Hand C 王の見えざる手 C
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%

Passive Skills

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

Altreactor A
Increase your Debuff Resist by 20%

Noble Phantasm

Cross-Calibur Black Dragon Twinblade of Victory
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	5
2nd	300,000	12 18
3rd	1,000,000	5 20 3
4th	3,000,000	12 6 5

Skill Reinforcement

Level	QP	Items
2nd	200,000	5
3rd	400,000	12
4th	1,200,000	5
5th	1,600,000	12 10
6th	4,000,000	5 20
7th	5,000,000	12 12
8th	10,000,000	24 4
9th	12,000,000	11 10
10th	20,000,000

Stats

Strength

A

Endurance

B

Agility

B

Mana

A+

Luck

C

Noble Phantasm

A++

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				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

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

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