Anemoia

Holding a potion of uncommon rarity, you can duplicate the effect to a vial of harmless liquid. The harmless vial becomes an exact copy of the original potion and both retain their potency for 24 hours. At the end of the duration, both potions lose their properties becoming vials of harmless liquid.

At Higher Levels. When you cast the spell using a 3rd level or higher spell slots, the rarity of the required potion increases by 1 for each level above 2nd.