Tome of Enlightenment
Fool’s Guard

(Wondrous item, rare)

This book contains teachings on a specific topic, and its words are charged with magic. If you spend 48 hours over a period of 6 days or fewer studying the book’s contents and practicing its teachings, you will permanently learn a corresponding feat or special ability. The tome then loses its magic but regains it after a century.
This version of the tome teaches the Fool’s Guard feat.