Castoria Guide: Skills, Synergies, and Top Team Compositions

Artoria Caster, widely recognized in the Fate/Grand Order community as Castoria, stands as one of the most influential and transformative support Servants in this RPG. She first appeared during the 5th Anniversary event and swiftly became an essential asset for any dedicated player aiming to conquer challenging content or optimize farming efficiency.

Unlike her Saber counterpart, Castoria doesn't rely on swordplay—instead, she empowers your team with overwhelming buffs, accelerates Noble Phantasm charging, and extends ally survivability. As a premier Arts support, she excels at elevating even mediocre Servants to exceptional performance when integrated into the right team composition.

Limited Availability

Before exploring Castoria's capabilities, it's important to note that as a limited 5-star Servant, she is exclusively available during specific summoning banners—typically tied to anniversary celebrations or major story milestones. This means if you encounter her banner, investing your Saint Quartz is highly advisable when constructing an Arts-focused team.

What Makes Castoria Special

Servants in Fate/Grand Order showcase remarkable diversity in forms, capabilities, and specialties. Castoria specializes entirely in Arts synergy and comprehensive team support. Her complete toolkit focuses on enhancing NP generation, amplifying damage output, and facilitating rapid NP looping strategies. She demonstrates exceptional synergy when paired with Arts-oriented damage dealers like Space Ishtar, Summer Musashi, or even Chloe.

Among her Append Skills, the third proves particularly valuable—it increases damage against Saber-class enemies, one of the few categories that can effectively counter her defensive support capabilities.

Playstyle and Combat Tips

Castoria operates most effectively from the backline, providing crucial support to frontline units. While she doesn't deliver significant damage personally, her enhancement abilities dramatically improve overall team performance. Deploy her Noble Phantasm consistently to maintain buff stacks and protect against enemy NP removal effects.

During challenging boss encounters, coordinate her invincibility skill with other defensive abilities to prevent overlap and maximize coverage. For farming stages, carefully time her buffs to ensure your primary damage dealer receives maximum benefit from each NP chain sequence.

Artoria Caster transcends being merely another variant of Artoria. She represents a premium support Servant who fundamentally reshaped combat approaches within Fate/Grand Order. Whether tackling routine farming or confronting high-difficulty trials, Castoria consistently proves to be an invaluable addition to any team roster.

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