Arash, a heroic spirit from ancient Persian mythology, is renowned as a mythic archer whose sacrifice ended a six-decade war between Persia and Turan. To forge peace, he loosed an arrow that soared 2,500 kilometers to demarcate a new border, an act that shattered his body. This ultimate technique, his Noble Phantasm *Stella*, functions as an Anti-Army strike rivaling Anti-Fortress potency but ensures his instant demise upon activation. In *Fate/Prototype: Fragments of Sky Silver*, Arash is summoned as Archer-class Servant to Elza Saijo in the First Holy Grail War. Partnering with Saber (Arthur Pendragon), he confronts Rider (Ozymandias), deploying *Stella* to obliterate the latter’s Ramesseum Tentyris. The attack exhausts his mana, dissolving his form, though his spirit briefly resurfaces to aid Saber against the Beast. Within *Fate/Grand Order*, Arash thrives as a cornerstone of farming strategies, his Noble Phantasm annihilating enemy waves in a single strike. This sacrificial efficiency enables swift team rotation, ideal for resource-focused quests. His meta-narrative role as an overworked laborer is humorously amplified in *Fate/Grand Carnival*, juxtaposing him against high-use allies like Waver and Merlin to critique in-universe labor dynamics. Personable and principled, Arash approaches conflict with unwavering pragmatism and a buoyant spirit. His tactical composure and dedication to shielding innocents echo his legend as a peacemaker. Relationships with figures like Hassan of Serenity—whose toxins he effortlessly resists—and Ozymandias reflect camaraderie rooted in shared reverence for their storied pasts. Arash’s design and skills mirror his mythic endurance and precision. Abilities such as bolstered defense, poison immunity, and rapid Noble Phantasm charging underscore his role, though fragile survivability limits him to specialized combat niches. Across adaptations, his narrative endures as a testament to self-sacrifice, embodying the resolve to safeguard others even through self-annihilation. While *Fate/Grand Carnival* frames him through a lens of exhaustion for comedic effect, his core identity remains unaltered: a guardian who willingly trades his existence for the greater good, steadfast in purpose across every incarnation.