Aeon Stone
Item 5+
When you invest one of these precisely shaped crystals, the stone orbits your head (or another visible part of your anatomy if you don't have a head) instead of being worn on your body. You can stow an aeon stone with an Interact action, and an orbiting stone can be snatched out of the air with a successful Disarm action against you. A stowed or removed stone remains invested, but its effects are suppressed until you return it to orbit your head again.
There are various types of aeon stones, each with a different appearance and magical effect. Each aeon stone also gains a resonant power when slotted into specific items, such as weapons with the aeon trait or antique magical devices called wayfinders.
Aeon Stone (Guiding) Item 15
Aeon Stone (Life-Giving) Item 7
Aeon Stone (Navigating) Item 16
Aeon Stone (Projecting) Item 13
The resonant power allows you to cast mind skewer as a 1st-rank occult innate spell once per day.