"You are correct. The Grail itself did not wish to involve the church any longer, so it summoned me instead." The irony that the Grail would instead choose to bestow the title of overseer on such a deeply religious heroic spirit was not lost on her, not one bit.

A curious look crosses her face at that. "Well, you are still far from a normal human, heroic spirit or not. Perhaps some aspect of being a Servant stayed with you after your war?"

It was... confusing, but that's the only thing Ruler can really think of. It would explain how Saber could remember the War and things pertaining to it.