There are total of five masters that we encounter in Campaign and their progression goes through Maps themselves. They are Einhar, Jun, Alva, Niko & Kirac. They all have their separate mechanics. Use the drop-down menus to see what they all offer.
Bestiary (Einhar)
Synopsis: Bestiary is a mechanic where we collect beasts for Einhar’s Menagerie in order to use them for various crafting purposes.
Betrayal (Jun)
Synopsis: Betrayal is a mechanic in which we hunt the people who betrayed us in the past, in order to get to the Mastermind of operations. We have to go through the 4 safehouses in order to find out (via intelligence that we learn) where the mastermind hides.
Incursion (Alva)
Synopsis: Incursion is a mechanic in which you venture to the past to make a temple to benefit your current game and reap the rewards!
Delve (Niko)
Synopsis: Delve is a mechanic in which we collect sulphite (resource) in Maps, to fuel Niko’s digging expeditions and get rewarded in this nearly-endless mine.
Maps (Kirac)
Synopsis: Maps are an endgame activity in Path of Exile. We explore the Atlas in order to find out what is going on in the story and to collect valuable loot along the way. Kirac is an informant that uses Scouting Reports in order to extract information from Maps themselves.