User blog comment:ZokeiR/Possible Grand Servants/@comment-82.219.6.198-20171215103019

I think Tangaroa from Maori mythology should be a five* star Grand Lancer and Freyja from Norse mythology as a five* star Grand Rider in the Nasuverse.

Grand Assasin candidate - Anansi or Cain (from the bible).

Grand Caster - Kiviuk (an Inuit shaman hero-deity) and Virococha from Inca mythology.

Grand Rider - Kiviuk (Alter) = his Noble phantasms((NPs))  would be: (1) his large spirit helper white bear as an anti-unit NP, (2) his Kayak as an unknown type NP.

Grand Avenger - Pandora from Greek mythology.

Grand Saber candidate - Bayajidda with his serpent-slaying sword Makera-Kashe Takobi as an anti-beast NP and his knife Daura Wuka as an anti-beast NP as well.