Rider Medusa

One of her greatest strengths is her tactical acumen. Medusa is a highly skilled strategist, having demonstrated this ability numerous times during the Fifth Holy Grail War. She specializes in devising strategies in the heat of battle, as the longer she fights with her opponent, the better she becomes at analyzing their fighting style, attack patterns, and deducing their powers. The reason her tactical ability was underutilized was because, under the contract with Shinji, who viewed Servants as tools and therefore Rider as nothing more than a tool, she was uninterested in hearing her strategic expertise. This often proves fatal to the pair. She primarily fights with a pair of Nameless Daggers (無銘·短剣, Mumei Tanken) in close combat, which would likely be called a "nail" rather than a "dagger". It is attached to a long chain that can restrain and immobilize targets it pierces. It is not suited for close-range combat; it is best used as a ranged throwing weapon. [ 30 ] It is not a Noble Phantasm , and is believed to be a weapon that reflects her inner character, as well as being strong enough for her to stand on and use to propel herself towards an opponent. [ 31 ] The dagger and chains magically manifest from her hair, without any limit like the amount of hair on her head, which remains the same despite manifesting dozens of chains. She seems to be able to control them not only through sheer skill, but through a telekinetic ability. [ 32 ] She is also able to conjure numerous Nameless Daggers through a summoning circle and fire them over a large area in any direction of her choosing. [ 33 ] [ 34 ] She has demonstrated the ability to will her Nameless Daggers in and out of spirit form, likely due to her weapons being an extension of her hair. This ability is extremely valuable in combat because it allows her to restrain and/or trap if

Medusa and her sisters were born from humanity's desire for ideal idols, the embodiment of humankind's longing. As "perfect goddesses," their "divine essence" was meant to remain unchanged from creation to destruction. Medusa was an exception: a failure from birth, aging over time. Though they should all have been copies, or even clones, the result of the deification of the same phenomenon, a mistake in her birth or something of greater consequence caused her to be copied imperfectly. While she did not embody "eternal youth and immortality," she acquired abilities in compensation, compared to her sisters' inability to even care for themselves. With god-like powers, her Mystic Eyes indispensable for protecting her sisters, who were unable to live in the world on their own, this caused the previously conjoined sisters to become three separate individuals. Though Medusa was different from the beginning, even the other two displayed irregularities, their sadistic nature, when interacting with her. [ 10 ]

She was originally considered a princess beloved by humans, but Athena, jealous of her beauty, cursed Medusa, taking away her "faith of all" and exiling her to the Formless Isle. Their love for her turned to hatred, and she was banished by those who had worshipped her. The island held nothing compared to her days of luxury, and she prayed that none of the humans who now terrorized her with their unjustified resentment would ever set foot on it. Weeping in solitude, she was unaware of the sin that had forced her exile. Although her sisters were unaffected and still much loved, they also accompanied her there out of concern for their younger sister. She was happy even on the desolate island thanks to their company, and only had to fear the humans who approached. [ 10 ]

In her human form, Rider is a tall, beautiful woman with long, straight purple hair. She wears a revealing black outfit and a special blindfold to hide her powerful Mystic Eyes.

She is typically quiet, pragmatic, and vigilant, but her personality is defined by an absolute loyalty to her master. She can be ruthless in achieving her objectives but shows a gentle, vulnerable side, particularly in her interactions with Sakura Matou.

As a Servant, Rider is a highly agile and effective combatant with several notable skills and weapons. Mystic Eyes of Petrification (Cybele): A powerful ability that can turn living flesh to stone. It is so powerful that Rider must keep it sealed with her blindfold. Riding: Her high-ranking Riding skill allows her to effectively use all mounts, from normal animals to divine beasts. Bellerophon: Bridle of Chivalry: Her greatest Noble Phantasm, which allows her to summon and ride the legendary winged horse Pegasus. Pegasus's speed and devastating offensive power make it a fearsome weapon. Blood Fort Andromeda: Outer Seal Temple: An area-of-effect Noble Phantasm that creates a bounded field, draining the life force of those trapped inside. Chain blades: Her primary weapon is a pair of long, chained daggers or nails. She uses them with great skill and speed in close-quarters combat.