This ancient, wide brimmed hat is adorned with magical runes and arcane symbols. 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 first-level spell that you don’t know. The spell must be on the wizard spell list, and you must make a DC 12 Intelligence (Arcana) check. If the check succeeds, you cast the spell. If the check fails, so does the spell, and you roll on the wild magic table. In either case, you can’t use this property again until you finish a short or long rest.

This hat once belonged to the greatest gnomish wizard, Cabrooncleus the large-headed. 

Notes: small humanoid, Focus