Here is all you need to know about upgrading item rarities in Path of Exile 2 – along with a general overview of its tiers.

They're extremely rare, but you can increase your chances of finding them by wearing equipment with the "X% increased rarity of items found" modifier. The effect of that modifier is hotly debated ...

The rarity of the item you're modifying determines ... It's unclear where these oils drop exactly since Blight isn't in PoE2; we'll update this guide with additional information once we learn ...