Charm of the Puzzle

D&D 2014 boon: Charm of the Puzzle. Source: The Book of Many Things. boon type Charm You can cast Hypnotic Pattern, requiring no spell components and using your Intelligence, Wisdom, or Charisma as the spellcasting ability (your choice). Once used three times, the charm vanishes from you.

Source: The Book of Many Things, p. 62 - Licenses and attribution