Jason

Jason, also known as Iason, is a Saber-class Servant in Fate/Grand Order, a prominent figure from Greek mythology. Originally named Diomedes, the prince of Iolcos, he was later renamed Jason after being taken in by the centaur Chiron. Driven to reclaim his usurped throne, he embarked on an epic quest with the Argonauts to find the Golden Fleece. In Fate/Grand Order, Jason is known not for his combat prowess but for his exceptional leadership and crisis management skills. Despite his arrogance and boastful nature, he harbors a deep desire to become a true hero. He possesses a unique ability to gain inspiration in dire situations and lead his team out of trouble with cunning strategies. Jason's Noble Phantasm, "Astrápste Argo," manifests as the Argo ship, summoning his fellow Argonauts for a coordinated attack. Although he is portrayed as a comedic character, his leadership and strategic thinking at crucial moments are noteworthy. In Fate/Grand Order, Jason is a 1-star Servant obtainable through friend points, and his story is depicted in the main storyline and various events.