Vivian (ヴィヴィアン, also spelled "Viviane"?), the Lady of the Lake (湖の乙女, Mizūmi no Otome?), is a fairy known for bestowing Excalibur upon King Arthur. She is an alternate good personality of King Arthur's evil sister, Morgan le Fay.
Vivian was a Great Mother class fairy born in the inner sea of the planet. Also known as the "fairy princess of the lake," Morgan le Fay was considered her counterpart, Vivian embodying goodness compared to Morgan's evil. This duality was also reflected in the nature of Excalibur itself. It was believed by some that Merlin himself taught Vivian magecraft, and they also had a love affair.
It is thought Morgan inherited Vivian's authority. However, Vivian is in truth Morgan's alternate personality. Morgan is described as being like she has three people within her. Having started with the "innocence of a fairy", she became "as magnificent as a warrior maiden", and "then suddenly possessed the brutality of a witch." Vivian is one of these three personas. Morgan developed these three personalities as a way to reconcile the three roles enforced on her by her supernatural birth: Morgan the human, Artoria's caring sister; Vivian the fairy, the Lady of the Lake; and Morgan le Fay, the embodiment of Britain and holder of its Mystery.
Vivian granted Artoria Pendragon Excalibur and Rhongomyniad after the loss of Caliburn. Vivian also became her guardian. Near the end of Artoria's reign, when Merlin fled to Avalon to escape Vivian after scorning her, Vivian imprisoned him in a tower where he remains even now.
Vivian embodies goodness. Ayaka Sajyou as a child reminded Arthur Pendragon of Vivian's kind and gentle voice. However she can still be angered. When Merlin scorned her, Vivian's response was to pursue him as he fled to Avalon and then lay a trap for him that imprisoned him in a tower for eternity. Merlin describes himself as trying to escape the "vicious claws of the witch".
Francesca Prelati and Francois Prelati refer to their teachers in magecraft as spirits who took interest in and watched Artoria through "water-viewing whispers," the duo feeling that Artoria's misfortune would upset their teachers. Merlin is noted to have taught their teachers magecraft. While Prelati's teachers would have wanted to help Artoria in the Fourth Holy Grail War, they would have been unable to as there is not enough Mystery left in the world for them to reach Japan from Britain.
The Caster summoned by Richard I's Noble Phantasm Rounds of Lionheart is named ...ue (…ュエさん, …Ue-san?), with the first half of their name obscured. The visible second half is spelled the same as Vivian's alternate name Nimue (ニミュエ?).
As a Great Mother, Vivian is a Divided Spirit of the planet's soul. She is a "pure transcendent existence" who, while within the same scope as nature gods born through human worship, is not bound by human rules.
One receiving the blessing of Vivian possesses the ability to walk atop any body of water. Her blessing on Lancelot in the form of the Knight of the Lake Skill allows him to temporarily add a + to any parameter other than Luck.
The spell that she used to trap Merlin in his tower for the rest of time is known as the "Garden". A magic tomb bearing the inscription "Only those free of sin may pass", it is a powerful bounded field magecraft from the Age of Gods that is unable to be handled by anyone but the embodiment of Mystery.
- Fate/Grand Order: Cosmos in the Lostbelt - Avalon le Fae: Fairy Round Table Domain - Part 2 Prologue
- Fate/Grand Order - Fairy Round Table Domain: Avalon le Fay - Chapter 4 Section 2 - Oberon's fairy explanation, translated by You
- Fate/stay night - Saber profile
 Fate/complete material II: Character material - Weapons: Black Excalibur, p.121
Excalibur’s appearance after being corrupted by evil. Excalibur functions by converting its user’s magical energy into offensive power. Because of this nature as a “sword that amplifies”, when Saber was blackened, Excalibur blackened with her.
In Arthurian legend, King Arthur received Excalibur from Vivian, a fairy of the lake. Just as the fairy Vivian who embodied goodness had her polar opposite in the evil Morgan, so too does Excalibur have the possibility of embodying both good and evil. However, whether Excalibur is filled with good or stained by evil, the fact that it is the strongest holy sword does not change.
アーサー王伝説において、エクスカリバーは湖の妖精ヴィヴィアンがアーサー王に授けた剣である。湖の妖精に 善の属性を持つヴィヴィアンと、対極である悪の属性を持つモルガンが存在するように、妖精から授かったエク スカリバーも善と悪の両属性を持ちうる可能性があるのだろう。だがエクスカリバーが善悪どちらの属性に染ま ろうとも、これが聖剣の頂点に立つ最強の斬撃兵器であることに変わりはない。
- Fate/Grand Order material IV - Merlin, p.396-409, translated by castor212 at Beast's Lair.
- Garden of Avalon - "A Tale of Knights: Kay"
 Fate/Grand Order - Berserker Profile [T]
Lancelot - Berserker
Illustrator and Voice actor
Illustrator: Hirokazu Koyama
Voice Actor: Ryōtarō Okiayu
Noble Phantasm: A
Eternal Arms Mastership: A+
Protection of the Fairies: A
Reverse Flow of Mana: A
Mad Enhancement: C
Magic Resistance: E
Knight of Honor: A Knight Does Not Die Empty-Handed
Type: Anti-Unit Noble Phantasm
The "Knight of the Lake", admired as the strongest even among the Knights of the Round Table.
His adulterous love with Queen Guinevere invited the ruin of Camelot - surely, an individual who is the negative symbol of Arthurian Legends.
Level 1 Bond
Source: Arthurian Legends
Alignment: Lawful Mad Gender: Male
Once the greatest knight; but, consequentially, his error was too severe.
Level 2 Bond
Having lost his parents as a child, he was raise by the fairy of the lake Nimue and thus gained the alias "Knight of the Lake".
Upon reaching adulthood, he crossed over to the Isle of Britain and, after meeting with King Arthur, joined the Knights of the Round Table. It has been said that none could compare to his valor and chivalric mentality.
Level 3 Bond
For him to surrender himself to his feelings towards Queen Guinevere was an inevitable outcome for his chivalry. If his treachery towards the king was promptly met with ruin, he would probably have been saved. However, because his valor was peerless, this situation brought about the worst possible outcome.
Level 4 Bond
"A Knight Does Not Die Empty-Handed"
Rank: A Type: Anti-Unit
Knight of Honor.
An Ability Noble Phantasm that implements the attributes of "one's own Noble Phantasm" to anything he puts his hands on. No matter what armament, no matter what kind of weapon becomes a pseudo-Noble Phantasm equivalent to D Rank.
Level 5 Bond
- Eternal Arms Mastership: A+
Martial dexterity that reached the point of being boasted as peerless in a given era. By complete unification of heart, technique and physique, it is possible to display one's former combat power even while under the influence of any kind of mental restriction.
The tenacity of a knight who feel in the depths of regret despite being bathed by too much honors; especially due the feelings of love and hate pointed towards the King and the Queen that can never reach an answer, he continues to be imprisoned by eternal madness.
The black knight continues to fight, seeking the sole meeting that might appease his agony.
ランスロット - バーサーカー
- Eternal Arms Mastership: A+
- Garden of Avalon
- Garden of Avalon - Prologue: At the Garden
- Lord El-Melloi II Case Files Volume 7: case. Atlas Contract (Lower)
- Fate/Prototype: Fragments of Sky Silver Volume 5 - "Knight of Fate Arc" Part 3-B
- Fate/strange Fake Volume 6 - Chapter 20: "Fantasy Becomes Reality"
- Fate/strange Fake Volume 4 - Chapter 10: Day 2 "Separate Mornings, Separate Pasts I"
- Fate/strange Fake Volume 7
- Fate/Zero Volume 3: The Scattered Ones - Act 10 Part 1 -84:34:58
- Fate/Grand Order - Lancelot (Saber), Translation by Master of Chaos