Archer (Fate/KOHA-ACE)

Demon Archer (魔人アーチャー) is an Archer-class Servant created for the parody work, Koha-Ace.

Identity
Demon Archer is (織田信長), the "Devil King of the Sixth Heaven" and legendary warlord of the Sengoku and Azuchi-Momoyama Periods of Japan.

Abilities
Demon Archer is a Servant whose abilities and effectiveness differ depending on factors about enemy Servants, making it the "ultimate game of compatibility" when facing her enemies. She, who sought to destroy Shinto and Buddhism, displays an absolute advantage over Servants with Divinity and "Mystery" behind their legends. Both her Noble Phantasm Demon King of the Sixth Heaven and skill Tenka Fubu - Reformation allow for her to be granted modifiers leaning in her favor the higher the Divinity or Mystery of the opponent, and Tenka Fubu also grants bonuses against heroes who were "guardians of the establishment" due to it being a skill granted to those who brought about a revolution and a "conceptual revolution of subjecting the old with the new." Those with "Mystery" are those that had illusory abilities in life and those who may have not existed at all. King Arthur, known for her interactions with the Lady of the Lake and Excalibur, Jack the Ripper, whose unknown identity and various unsolved mysteries, Sasaki Kojiro, who did not exist, and Joan of Arc, who heard the "Voice of God", all have mysterious elements to them. Others include EMIYA, Solomon ibn Gabirol, Nursery Rhyme, Spartacus, and Mordred. While Gilgamesh and Karna have high Divinity, they are strong heroes able to match her directly.

The weakness that comes with this advantage is that she has no power over heroes with little Mystery, such as Heroic Spirits of the modern era. The effects of her skills and Noble Phantasms drop the lower the levels of Mystery and Divinity. Those that became heroes without achieving, learning, or obtaining mysterious or supernatural powers include Li Shuwen, Francis Drake, Hans Christian Andersen, Shakespeare, Lu Bu, and all nineteen Hassan-i-Sabbah, all fundamentally remaining "normal" human beings. When identifying if a Servant has Divinity, Mystery, or both, her best method is simply to "just shoot them" and find out afterward. Her Noble Phantasm Three Thousand Worlds also provides benefits against Servants possessing the Riding skill.

She possesses the ability Demon King, "similar to but dissimilar to Innocent Monster", that affects those who were called a monster in life, later twisted to be different than they were in life. Distorting her abilities and appearance, Archer is unique in that it was something she called herself in life, allowing her to receive its benefits without any demerits and activate or deactivate it of her own choosing. She can alter her appearance from being a small child to having a prominent bust.