The Spirit Core (霊石 Reiseki / "Koa"?, "Spirit Stone") is a key item in Tales of Arise. It allows the harvesting of astral energy.
History[]
A spirit core is embedded into a Dahnan slave, where it forms connection through the body and gathers astral energy derived from physical activity. Their existence is what leads to the Dahnans' derogatory "Embedded" moniker and why they are put through back-breaking though not fatal work. The spirit core needs to be within range of a spirit vessel in order for energy to be properly gathered. Spirit cores are also difficult to make, which is why the amount each can gathered is painstakingly maximized to extract as much as possible from each subject without killing them. Spirit cores can also be embedded into zeugles to control them via astral artes.