PoE PoE 3.0 Act6: The Brine King Boss (video) 04/21/201704/21/2017GmachineComments Off on PoE 3.0 Act6: The Brine King Boss (video) Path of Exile 3 Act6 Final Boss – The Brine King (gameplay video). PoE 3.0 The Fall of Oriath.