Kuro von Einzbern
Chloe von Einzbern also known as Kuro is a twin existence formed from Illya's original self in Fate/kaleid liner PRISMA☆ILLYA. She also appears as Archer (アーチャー, Āchā?), an Archer-class Servant able to be summoned by Ritsuka Fujimaru in the Grand Orders of Fate/Grand Order.