Mmoexp: Crafting is a core element of PoE

[Rozemondbell]

2. Crafting Currency

Crafting is a core element of PoE, and several currency items are specifically designed to enhance or modify items.

Orb of Fusing: Links the sockets on an item, allowing for POE currency multiple skill gems to be connected and thus enable more powerful skill combinations.

Orb of Scouring: Reverts an item to its basic state, removing all modifications and properties. This can be useful when you want to start over with crafting on an item.

Mirror of Kalandra: Creates an exact duplicate of an item, preserving all its properties. This is an extremely rare and valuable item, used mostly for POE buy currency high-end crafting and trading.