A sentient [[wand]] known as a [[Kaleidostick]] that is [[Prisma Illya]]'s partner. Magical Ruby used to belong to [[Tohsaka Rin]], but she abandoned Rin and contracted with Illya instead. [[Magical Sapphire]] is her younger sister.

In Illya's [[illyasviel von einzbern (swimsuit archer)|Swimsuit Archer]] form, Magical Ruby is depicted as a water nozzle attached to a hose.
マジカルルビー