From tha Fate Wiki :
http://typemoon.wikia.com/wiki/List_...pha_characters
Spoiler for Jeanne d'Arc:
It seems Jeanne d'Arc is really powerful. Probably one of the most powerful servant. She's a special one since :
Quote:
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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.
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