Big Step-Sister Baobhan Sith

Baobhan Sith, also known as Faerie Knight Tristan, is a 4-star Archer-class Servant from Lostbelt Britain’s Faerie Round Table. Gifted with potent utility skills and a cruelty boundless as her beauty, she serves as Morgan le Fay’s acknowledged daughter and successor, delighting in bloodshed and despair. Despite her malicious tendencies, her expertise in both offense and support—ranging from self-invincibility and party evasion to NP sealing and curse amplification—makes her a uniquely versatile asset in battle. Below is a full character definition.

Name

Baobhan Sith (Source: Fate/Grand Order Wiki - GamePress)

Alias

• Faerie Knight Tristan
• Tam Lin Tristan (Stage 1)
• Lady Spinel, Baa’van see, Tori-ko (トリ子)

Gender

Female

Age

Unknown (appears as a young adult)

Class

Archer

Height

170 cm

Appearance

Baobhan Sith takes the form of a beautiful, long-legged woman in elegant attire. While her upper body appears entirely human, only the legs beneath her long skirt are fae, ending in deer-like hooves. Her striking visage and graceful posture conceal her predatory nature.

Personality

• Extroverted, active, and domineering
• Capricious hedonist who seeks amusement through the suffering of others
• Conditioned by Morgan’s praise, she displays a paradoxical fusion of dutiful filial devotion and arrogant wickedness

Like

• Blood and carnage (“Top-notch looks and rock-bottom personality!”)
• Chaos and cruelty
• Collecting and crafting high-heeled shoes

Dislike

• Platitudes and acts of goodwill, which she finds boring and nauseating

Relationship

• Morgan le Fay: High Queen of Lostbelt Britain and Baobhan Sith’s “mother,” whose praise shaped her personality

Ability (Skills)

1. Grimalkin A

   • Increases own Quick performance for 3 turns
   • Grants self Invincibility for 1 turn
   • Grants party Evasion for 1 attack (500 damage demerit)

2. Blessed Scion EX

   • Seals all enemies’ Noble Phantasms for 1 turn
   • Seals all enemies’ skills for 1 turn
   • Charges own NP gauge

3. Fae Vampirism A

   • Absorbs one enemy’s HP without killing
   • Has a chance to reduce target’s NP gauge by 1
   • Charges own NP gauge

Noble Phantasm

Fetch Failnaught / Lamentasia of Fantation (Anti-Army, Rank C/E)

• Type: Single-target Quick

• Effects:

  • Ignores Evasion for 1 turn
  • Inflicts Curse status (1,000 damage over 5 turns) and Evil Curse (amplifies Curse damage)
  • Deals damage, with bonus damage per Curse stack (up to 10)
  • Overcharge inflicts additional Evil Curse

Background

Born a faerie in Lostbelt Britain’s Darlington region, Baobhan Sith was one of only two fae raised as witches in a land where magic was deemed unnecessary. Dubbed Tristan after the legendary Round Table knight, she became Morgan le Fay’s favored “daughter” and successor. Her faerie name—meaning “she-fairy” in Scottish lore—befits a malignant spirit who appears at night to drain human life. Drawn to Proper Human History by Beryl’s tales, she adopted Western fashions (especially high-heeled shoes) and a penchant for Martial Tournament spectacles where losers are slain.

---

Sources:

• Fate/Grand Order Wiki – Basic stats, class, skills, NP details
• GamePress – Detailed profile entries on appearance, personality, background, relationships, and likes/dislikes
• TYPE-MOON Wiki – Additional background lore and trivia