The Harbinger of Hatred is a challenging endgame boss in Last Epoch, found in the Harbinger's Den within Mephisto's domain in the jungle of Nahantu. To summon this boss, players must first defeat Rahyeh Last Epoch Gold, the final boss of The Black Sun timeline, and then acquire four Abhorrent Hearts from Urivar in the Fields of Judgement. The Harbinger is a tank archetype boss that combines...