Soul Injector

Soul injectors are small vials etched in elven dark magic runes which can siphon away the soul of a weak creature and inject it into another. These are highly illegal, but are commonly available on the black market for a costly sum.
Soul injectors are sometimes procured for human parents to infuse their babies with stronger souls to protect the child from becoming a dull-eye, though such use becomes obviously within the first few years of the child's life. Each citadel has taken a different approach to dealing with their situations. The most draconian have called for the death sentence or severe jail time for the parents, while others look the other way.
While illegal, some organizations have used soul injectors for research into dark magic or to better understand souls.

Manufacturing

Soul injectors require precision engineering of parts, mainly metal but also glass depending on the design. Once the parts are created, they require advanced enchantments and rune-placing in an arcane laboratory. While the magic is fundamentally derived from elven soul consumption, any sufficiently skilled magician with knowledge of the rituals can complete the spellwork.

Inventor(s)

While soul injectors were obviously invented by an elven magician, little else is publicly known of who first created them.

Access & Availability

With sufficient funding, it is not too difficult to procure a soul injector, either filled or unfilled, on the black market of most citadels. The recipe to create such a device is widely known among various groups, so it is feasible to commisson the crafting and enchantment of new soul injectors.

Discovery

The rumor goes that a descendant of the old human kings commisioned the creation of a device such as this to save her newborn baby after their first child did nothing to save themselves from a fatal accident. She poured the last of her royal riches into deals with powerful elven dark magicians to channel their ability to consume souls into a portable magic device that could do the same for a non-elf.
Whether this rumor is true or not is unknown. It is possible this technology comes from the old world and predates the world dying.

Related Species

• Elf