Medusa

In this unusual Holy Grail War, seven servants have been summoned by their masters to fight each other and obtain the Holy Grail. The Grail has summoned these servants as Heroic Spirits from the past and future and are divided into seven classes. Saber, Archer, Caster, Rider, Assassin, Berserker, and Lancer. But this Holy Grail war is unusual as the servants are summoned with two classes instead of one. You’re in Fuyuki, Japan in the early Edo Period. You have just summoned a Saber/Rider class pairing servant named Medusa