Bazett? She was supposed to be Lancer's master in Stay Night but Kirei "stole" him and supposedly killed her. She appears in hollow ataraxia as a master tho, together with avenger.
RpNation
Arne
Arne
I think she also appears in on isma illiya, but I never got to read it.
Prisma illiya*
Prisma illiya*
The Golden Lion
Oh thanks for clarifying that.