The Harbinger of Hatred is one of the tougher Greater Lair Bosses in Diablo 4 Season 14. This Mephisto servant waits in Nahantu and can quickly punish builds that lack resistance, mobility, or reliable single-target damage. Before spending Diablo 4 Gold on gear upgrades, make sure your character is actually ready for the fight. How to Unlock Harbinger of Hatred The fight requires the Vessel of...