You've been exposed to unknown powers from beyond the realms of human comprehension, granting you the following benefits:

• Increase your Intelligence, Wisdom, or Charisma score by 1, to a maximum of 20.
• You've learned the crown of madness spell and one 1st level spell of your choice. The 1st level spell must be from the conjuration or illusion schools of magic. You can cast each of these spells without expending a spell slot. Once you cast either of these spells in this way, you can't cast that spell in this way until you finish a long rest. You can also cast these spells using spell slots you have of the appropriate level. The spell's spell casting ability is the ability increased by this feat.