POE Harbinger Orb is a stackable currency item which is applied on a map to reforge it into another map of a higher tier. However, there is also a probability to get the Beachhead which can help you find and kill Harbinger bosses. In Path of Exile game Harbinger Orb can be made with a vendor recipe, if a player will collect 20 Harbinger shards. It can also drop from Harbingers. Besides, you can buy Harbinger Orb for PC, PS4 or XBox at our online store cheap and fast.