Hat of Wizardry

This antiquated, cone-shaped hat is adorned with
gold crescent moons and stars. While you are
wearing it, you gain the following benefits:
• You can use the hat as a spellcasting focus for
your wizard spells.
• You can try to cast a cantrip that you don't
know. The cantrip must be on the wizard spell
list, and you must make a DC 10 Intelligence
(Arcana) check. If the check succeeds, you cast
the spell. If the check fails, so does the spell,
and the action used to cast the spell is