Hat of Mental Acuity

Wondrous item, rare (requires attunement)

This well-crafted cap appears to be standard wear for academics. Embroidered on the edge of the inside lining in green thread are sigils. If you cast comprehend languages on them, they read, “They that are guided go not astray.”

When you wear the hat, you gain advantage on all Intelligence and Wisdom checks. If you are proficient in any Intelligence- or Wisdom-based skills, you double your proficiency bonus when making checks with those skills.