Lone Messenger

Lone Messenger is a Keystone passive skill that significantly improves herald at the cost of disabling the character's auras and have a maximum of one herald. It increase the damage from the minions from Herald of Agony and Herald of Purity, or the explosion hit from Herald of Ice and lightning bolts from Herald of Thunder, or the damage over time from Herald of Ash and the ailment damage over time from hits of Herald. Note that Herald of Thunder's hit cannot inflict shock, while shock, freeze and chill (as well as the alternative ailments: scorch, brittle, and sap) are non-damage ailments. Only bleed, poison, and ignite are damaging ailments, which Lone Messenger only scale their damage if it is inflicted by the Herald.

It can only appear when placing cluster jewels into the player character's skill tree.