Ebon Fulcrum LensEquipment 12
Source Pathfinder #165: Eyes of Empty Death
Price 2,000 gp
Weight light
This strangest and most powerful of the fulcrum lenses resembles a chip of smooth obsidian containing three dark glimmers of Nhimbaloth's essence. Incorporeal creatures can touch and hold the Ebon Fulcrum Lens. While you have the Ebon Fulcrum Lens invested, and you're a corporeal creature, you become insubstantial, gain the incorporeal trait, and are Drained 2. Your drained condition can't be reduced below 2 as long as you have the lens invested. You can activate the lens in the following ways. Both require expenditures of glimmers within the lens; once the lens is depleted of its three glimmers, it retains its ability to make corporeal creatures insubstantial but can't be used for its other abilities until its glimmers are restored (which generally requires a ritual or being steeped in an area of Nhimbaloth's power).
Activate 
envision
Frequency once per day
Requirements At least one glimmer remains in the Ebon Fulcrum Lens
Prerequisites you have the rejuvenation ability
Trigger you would be destroyed and are able to rejuvenate
Effect For the first 24 hours after you rejuvenate, you gain a +1 item bonus to attack rolls, saving throws, and DCs. Reduce the number of glimmers remaining in the lens by 1.
Effect: Ebon Fulcrum Lens (Reaction)
Activate 
Interact
Frequency once per day
Requirements At least one glimmer remains in the Ebon Fulcrum Lens
Effect You draw upon a glimmer of Nhimbaloth's essence for power; reduce the number of glimmers remaining in the lens by 1. You're Quickened for 1 minute and gain a +1 item bonus to attack rolls, saving throws, and DCs. You can use this extra action to Stride or Step, or for an action in a special ghost ability you have.
Effect: Ebon Fulcrum Lens (2 Action)
Traits
A rules element with this trait is one-of-a-kind. The DC of Recall Knowledge checks related to creatures with this trait is increased by 10.
InvestedA character can wear only 10 magical items that have the invested trait. None of the magical effects of the item apply if the character hasn't invested it, nor can it be activated, though the character still gains any normal benefits from wearing the physical item (like a hat keeping rain off their head).
NecromancyEffects and magic items with this trait are associated with the necromancy school of magic, typically involving forces of life and death.
OccultThis magic comes from the occult tradition, calling upon bizarre and ephemeral mysteries. Anything with this trait is magical.