Adventuring Fedora

This hat looks like an ordinary explorer's fedora from the outside, but it is lined in fine silk that is patterned with arcane symbols on the inside. When an Adventuring Fedora is created, a single cantrip from any class's spell list is embedded into its silk lining. You become aware of the spell when you learn the hat’s properties. While you are wearing this hat, you gain the following benefits:

• If you're a spellcaster, you can use it as a spellcasting focus.
• You can try to cast the cantrip embedded in the hat's lining. To cast the spell, you must make a DC 10 Intelligence (Arcana) check. If the check succeeds, you cast the spell. The spell's saving throw DC is 13 and has a +5 attack bonus. If the check fails, so does the spell, and the action used to cast the spell is wasted. In either case, you can’t use this property again until you finish a long rest.