Saber

Saber is Shirō's Servant for the Fifth Holy Grail War.

History
Saber's real name is Arturia Pendragon, or King Arthur, a former ruler of Britain, who gives up her humanity for the sake of her country. Before her last breath, she appeals to the world; in exchange for services as a Heroic Spirit, she asks to be given an opportunity to relive her life, where someone more suitable and effective would lead Britain in her stead.

Personality
Loyal, independent, and reserved, Saber acts coldly but is actually suppressing her emotions to focus on her goals. Her class is considered the "Most Outstanding", with excellent ratings in all categories. Since her Master cannot effectively provide her with Mana, she minimizes her activity to preserve her energy. Saber is frustrated by Shirō's "protective" tendencies, believing his erratic and reckless behavior will jeopardize her chances of winning the Holy Grail War.

Magical Ability
She has the ability to cancel any magic below A-rank, instinct that comes close to precognition, and high charisma, which she can use to command an army. She can use "Mana Burst", which transfers magical energy into her weapon and body, though the weapon must have strong divine protection to withstand the ability.

Noble Phantasms
Saber has the following noble phantasms:


 * Excalibur: Sword of Promised Victory, a celestial sword constructed by the world from the collective wishes of mankind and fueled through a conversion of Mana into photoelectric energy.


 * Invisible Air: Barrier of the Wind King, which compresses and gyrates the air around Saber's blade, allowing her to induce an illusion of ethereality, making it hard for opponents to judge her strikes, and release the air in the form of an intense gust.


 * Avalon: The scabbard of Excalibur, the Everdistant Utopia, bequeaths limited immortality through regenerative stimulation, as well as preventing physical deterioration due to aging.


 * Caliburn: Golden Sword of Assured Victory, that was broken during her lifetime but was Traced by Shirō. It is her fourth Noble Phantasm.