[quote=@Flamelord]
I'd be interested I suppose. Might as well ask whether fictional people are allowed (Like, from fiction. Not Wraiths like False Assassin)
[/quote]

You're saying like, huh... a Rider based on Don Quixote, or something like this? I don't see why not, since the most part of the servants are based on fictional figures, anyway. As long as it's not something completely constructed by you, that is.

Though, Servants like Kojiro are perfectly acceptable, IMO. I just don't want another EMIYA around since he was a clear anomaly to the system.