Docent

{w}Requires attunement by a warforged
A docent is a small metal sphere, approximately
2 inches across, studded with dragonshards.
Despite a strong magical aura, it has no obvious
abilities. If you're a warforged, you can attune to
the docent, at which point the sphere becomes
embedded in your chest and comes to life -
literally.
(See Handout For Full Description)