Mordred's Clarent
The crimson blade that cuts through kings, born from a son's rejection and a father's regret.
Clarent Blood Arthur is the Noble Phantasm of Mordred, the Saber of Red in Fate/Apocrypha. It is her magic sword that fires destructive energy blasts. Mordred is the homunculus daughter of Artoria Pendragon and her sister Morgan le Fay, known as the Knight of Treachery. She appeared in Fate/stay night and Fate/Zero in flashbacks, but her face was not revealed until her appearance in Apocrypha.
- wielder
- Mordred
- noble_phantasm_type
- Anti-Fortress / Anti-Army
Lore & Background
Mordred wishes to use the Grail to challenge her right to be King of Camelot and have her father's recognition as her heir. Artoria had previously slayed her, but not before she mortally wounded her father, leading to Artoria's ascension as a Heroic Spirit. Mordred is prideful, haughty, confident, and dislikes being addressed as a woman. She has two Noble Phantasms; her armor "Secret of Pedigree", which hides her identity from detection, and her magic sword "Clarent Blood Arthur", which fires destructive energy blasts.
In Their Own Story
Mordred and her master Kairi Shishigou side with the surviving Yggdmillennia Masters and Jeanne to defeat Amakusa and fight and defeat Semiramis, but Mordred fades away after Shishigou dies from his wounds. In Fate/Grand Order, Mordred appears in London as an ally and guide to Ritsuka Fujimaru and Mash Kyrielight and would later be a recurring ally on other lostbelts assisting in SIN and Atlantis. An alternate version of Mordred where she never had a tumultuous relationship with Artoria appears in Camelot as an antagonist.
Reader's Guide
Clarent Blood Arthur originates from the conceptual framework of Excalibur, yet its mechanics are driven by Mordred's 'rejection' rather than her father's 'kingship.' To activate the Noble Phantasm, Mordred must channel her hatred and desire for independence into the blade, causing it to emit a massive beam of crimson energy. Visually, the sword appears as a long, ornate greatsword with a distinct red glow that intensifies upon activation, often surrounded by dark, jagged magical particles.
In battle, this power functions primarily as an Anti-Fortress or Anti-Army attack, capable of leveling entire structures and annihilating groups of enemies with a single strike. The beam is not merely physical destruction but carries the conceptual weight of severing bonds, making it particularly effective against opponents relying on magical barriers or divine protection. Its impact on lore is profound, symbolizing the inevitable tragedy that arises when a child's desire for identity clashes with a parent's rigid idealism.
Did You Know?
- Clarent Blood Arthur is described as a magic sword that fires destructive energy blasts.
- Mordred is the homunculus daughter of Artoria Pendragon and her sister Morgan le Fay.
- Mordred's face was not revealed until her appearance in Fate/Apocrypha.
- Mordred has two Noble Phantasms: 'Secret of Pedigree' (armor that hides her identity) and 'Clarent Blood Arthur'.
- In Fate/Grand Order, an alternate version of Mordred who never had a tumultuous relationship with Artoria appears in Camelot as an antagonist.