Cranium Rat Cowl

Wondrous item, rare (requires attunement)
  From the pelt and brain of a cranium rat is crafted this morbidly cute headgear. During ‘The Occupation’, such cowls were worn as a means of avoiding detection by the hive-minded, telepathic bjorg, a race bent on subjugating all free thought. The Night Hospitaller would ferry escapees through bjorg lines before delivering them to an underground steam-powered locomotive.
  Illumination. As a bonus action while you wear the cowl, you can cause the cowl to shed bright light in a 5 to 20-foot radius (and dim light for an additional number of feet equal to the chosen radius), or extinguish the light.
  Psionics. While you wear this cowl, you can cast the following spells at will (save DC 15). After you do, roll a d6. If you roll equal to or lower than the spell’s level, you can’t use this property again until the following dawn:
  • Command (1st-level)
  • Comprehend languages (1st-level)
  • Detect thoughts (2nd-level)
  Telepathic Shroud. While you wear the cowl, you are immune to any effect that would sense your emotions or read your thoughts, determine whether you are lying, or know your alignment.
  Uncommon variant: Remove Psionics.
  Very rare variant: Increase Psionic’s d6 to a d8, the save DC to 16, and add the following spells to the list: confusion (4th-level), dominate person (5th-level).
  Legendary variant: Increase Psionic’s d6 to a d10, the save DC to 17, and add the following spells to the list: confusion (4th-level), dominate person (5th-level), dominate monster (8th-level). While you wear the cowl, you are immune to all divination spells.