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From Pathfinder #220: Crypt of Runes, which isn't enabled.

Runic Skullcap

ITEM 15
RAREDIVINEFOCUSEDINVESTEDMYTHIC
Price 6000 gp
Usage worn headwear
Bulk —

This silver skullcap is etched with snake patterns and a single Sihedron rune. The skullcap grants a +2 item bonus to Arcana and Religion checks. If a check is attempted to Recall Knowledge about rune magic or Lissala, the wearer treats the results of a failure or critical failure as one degree of success better.

Activate—Rewards of Service (concentrate)
Frequency once per day
Effect Gain 1 Focus Point, which you can spend only to cast a cleric domain spell for a domain belonging to Lissala. Lissala's domains are ambition, duty, fate, and knowledge. If you don't spend this point by the end of this turn, it is lost.
Activate—Rewards of Rule 1 minute (concentrate)
Requirements You have master or legendary proficiency in Arcana
Effect Spend 1 Mythic Point when you invest the runic skullcap. Until the next time you invest the skullcap, you can also use the Focus Point granted by Rewards of Service to cast a focus spell from the runelord wizard school.
Pathfinder #220: Crypt of RunesORC