Mnemonic Vestment

Wondrous item, very rare (requires attunement by a sorcerer)

The surface of this delicate-looking blue silk robe is adorned with tiny, embossed runes across its entire surface. Once per day you may use a spell slot to cast a spell from a written source (such as a scroll or spellbook) as if you knew that spell. The spell does not have to be on your spell list but you must expend and equivalent, or higher level, spell slot. Activating the robe is not an action, but casting the spell otherwise works as normal, including casting time, providing components or foci, and so on. Using a mnemonic vestment’s properties does not consume the written source.