After becoming one with Primus, Optimus Prime has been summoned by the Holy Grail, to become a Saviour Class Servant and the 8th servant in the Holy Grail War, and in a new human body, he will fight various heroes of the past as he and his master Elisha Pieta to fight for the Holy Grail. Takes place between Prime and RID, Fate/Zero. Art done by jctdragonwarrior, rate and review pls
Rated: M - English - Adventure/Supernatural - Chapters: 8 - Words: 60,204 - Reviews: 30 - Favs: 148 - Follows: 133 - Updated: 9/11/2020 - Published: 11/23/2015 - Optimus Prime, OC, Arturia Pendragon, Iskandar