Ka StoneEquipment 0
Source Pathfinder Lost Omens: World Guide
Weight negligible
Ontained with Ka Stone Ritual
You inscribe your true name on your ka stone, as well as oaths to gods and pharaohs, and embed it in your forehead in a special ritual with a sphinx or with a living monolith who already has this feat. The ka stone is an invested magic item that you automatically invest each day. It can't be removed without your permission, nor can it be dispelled, and you can never lose investiture in the ka stone. Its Bulk is negligible.
The ka stone grants you a +1 item bonus to saves against death effects and negative effects, which increases to +2 at 8th level, +3 at 14th level, and +4 at 20th level.
Activate 
(envision), or a different activation if otherwise specified
Frequency a number of times each day equal to the number of class feats you have from the Living Monolith archetype
Effect You cast Enlarge on yourself or use one of the other activated abilities granted by a later Living Monolith feat.
Traits
This rarity indicates that a rules element is very difficult to find in the game world. A rare feat, spell, item or the like is available to players only if the GM decides to include it in the game, typically through discovery during play. Creatures with this trait are rare. They typically can't be summoned. The DC of Recall Knowledge checks related to these creatures is increased by 5.
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).
MagicalSomething with the magical trait is imbued with magical energies not tied to a specific tradition of magic. A magical item radiates a magic aura infused with its dominant school of magic. Some items or effects are closely tied to a particular tradition of magic. In these cases, the item has the arcane, divine, occult, or primal trait instead of the magical trait. Any of these traits indicate that the item is magical.