Update to the following power I wrote.
Original
Bound Spiritual Entity [+3]
Description: You are a spiritual entity imprisoned within a physical object, you have no body, and cannot act in the physical world without a bearer.
Effect:
Unbodied. You cannot take physical skills, you cannot move yourself, and you cannot communicate verbally and other neat things.
Communicate with Bearer. You are able to telepathically speak with the bearer of the object you are tied to.
License to Possession. You may take the possession upgrade of Domination in order to possess your bearer.
Called to Bearer [-1]. You have the ability to tie yourself to the bearer of your physical prison, and you can teach them to call your prison to their hand.
The Update
Bound Spiritual Entity [+3]
Description: You are a spiritual entity imprisoned in a physical object, you have no body, and cannot act in the physical world without a bearer.
Effect:
Unbodied. You cannot take physical skills, you cannot move yourself, and you cannot communicate verbally and other neat things. You do not have a physical stress track, and your prison can not be destroyed by any means. Any physical stress you would take is instead converted to mental stress.
Communicate with Bearer. You are able to telepathically speak with the bearer of the object you are tied to.
License to Possession. You may take the possession upgrade of Domination in order to possess your bearer. For the purposes of the Possession upgrade you are considered to be constantly "insubstantial".
License to Item of Power. You may act as an item of power for the bearer of your prison. You are allowed a Item of Power rebate equal to the size of your prison but you must purchase the powers you are able to grant as well. Normal restrictions to the refresh rebate apply.
Called to Bearer [-1]. You have the ability to tie yourself to the bearer of your physical prison, and you can teach them to call your prison to their hand.
-edit-
And the power at work:
Name: Eric Camden
HC: Wizard's Soul Bound to a Ring
TR: The Lust for the Ring
OA: Born in the 1800's; A Strong Will, to Survive Alone; Tempting the Bearers; ??; ??
Skills
5 Lore
4 Conviction, Discipline, Scholarship
3 Alertness, Deceit, Presence
2 Empathy, Intimidation, Rapport
1 Endurance, Investigation, Performance
Powers & Stunts
-0 Bound Spiritual Entity
-Possession
-3 Evocation
-3 Thaumaturgy
-1 Refinement
-1 The Sight
-0 Soulgaze
+1 Item of Power (You)*
-2 Sponsored Magic (You)*
*These powers are granted by you to your bearer, and you cannot access them directly.