Ruler (Fate/Apocrypha)

Joan of Arc, the Standard-Bearer who Correctly Guides the Holy Grail War (聖杯戦争を正しく導く旗手) is a Servant of the Ruler class, with the additional classification of the Saber class, designed by Kinoko Nasu for the original canceled online game project.

Background
She is a Catholic saint born in Domrémy, France, and the heroine of France who liberated Orléans in the Hundred Years' War.

She is a special Heroic Spirit summoned by the Holy Grail itself to act as the administrator of the Holy Grail War. This allows her to retain the memories of each repeating "game" unlike other Servants.

Personality
She is taciturn and cool when acting as a Servant, but her natural self is a plain and quiet sixteen-year-old girl. She puts order first, and will wield a sword for the sake of the rules, but fundamentally believes "all people and Heroic Spirits participating in the Holy Grail War are important".

Fate/Zero
She was referenced by her former comrade Gilles de Rais when he mistaken Saber as Jeanne.

She made a brief appearance when Caster was destroyed by Saber's Excalibur. Caster recall memories from his past, before he began his forays into murder and the occult, back when he still served alongside Jeanne D'Arc.

Fate/Apocrypha
The story will be centered around Joan: “In the name of Joan of Arc, I command you, fourteen servants.”

Based from this statement, it would be likely that she plays as the Ruler class of the Holy Grail War.

Abilities
Magic Resistance (対魔力): EX

In addition to the Magic Resistance of the Saber Class, she demonstrates a high anti-magic from her unwavering piety. However, since it is just averting (evading) the Magecraft, only Joan will be saved against a wide-range magic attack. It cannot cope with the sacraments of the Church.

Revelation (啓示): N/A

A Skill equivalent to "Instinct". Instinct is a sixth sense regarding battles, but "Revelation" accommodates all matters related to the achievement of a goal (for instance, choosing the most suitable path while traveling). Because there is no basis (so she thinks), it cannot be explained well to others.

Charisma (カリスマ): N/A

The natural talent to command an army. Joan's figure participating in the assaults hoisting a flag raised the morale of the soldiers to the limit and united the troops. Thanks to her charisma, it is possible to make others believe in the contents of the "revelations" without basis.

Saint (聖人): N/A

Indicates being acknowledged as a saint. When summoned as a Servant, the ability of saint is selected one among "raising the effectiveness of sacraments", "automatic HP recovery", "1 Rank-Up to Charisma" and "production of a holy shroud is possible".

Noble Phantasms
La Pucelle: The Crimson Holy Woman

A holy sword that manifest flames which uses the line of a death poem "O Lord, I entrust this body to you---" as activation incantation. A conceptual crystallization weapon that interpreted Joan's burning at the stake in an attack-like fashion. A subspecies of Reality Marble, an imagined landscape crystallized as a sword. This sword is Heroic Spirit Joan of Arc herself and after the battle in which this Noble Phantasm was manifested, Joan will be extinguished.