Harness the Power of Double Herald in Path of Exile 2: A Comprehensive Guide
The Double Herald setup in Path of Exile 2 (PoE 2) is a powerful technique that synergizes Herald of Ice and Herald of Thunder for devastating area-of-effect damage. This guide details how to implement this strategy and explains the underlying mechanics.
How to Use Double Herald (Herald of Ice + Herald of Thunder)
This powerful combination requires four key elements:
Herald of Ice Skill Gem linked with 
Lightning Infusion Support Gem.
Herald of Thunder Skill Gem linked with 
Cold Infusion Support Gem (and ideally 
Glaciation).- 60 Spirit.
- A method for inflicting Cold damage.
Remember to activate both Herald skills via right-clicking their icons in the skill menu.
Effective ways to initially trigger Herald of Ice (essential to initiate the chain reaction) include:
- Monk's Ice Strike (highly effective).
- Passive skills boosting Freeze buildup.
- Weapons/gloves with flat cold damage.
Against the Darkness Time-Lost Diamond Jewel (+Cold damage%).
How Herald of Ice and Thunder Interact
The synergy relies on the following:
- Herald of Ice activates when an enemy is Shattered (frozen then attacked). However, its cold damage cannot Freeze, preventing self-perpetuation.
- Herald of Thunder activates upon killing a Shocked enemy, releasing damaging lightning bolts. Similarly, it cannot inflict Shock independently.
The key is the damage conversion: Lightning Infusion on Herald of Ice converts some damage to Lightning (which can Shock), and Cold Infusion on Herald of Thunder converts some damage to Cold (which can Freeze). This allows for a chain reaction: Herald of Ice (via Lightning) Shocks, triggering Herald of Thunder, whose Cold damage then Shatters, triggering Herald of Ice again.
While theoretically infinite, this chain usually lasts one or two cycles due to the need for a continuous supply of enemies. Breaches are ideal due to their high enemy density.
The process begins by using a Cold skill (like Ice Strike) to Freeze and Shatter an enemy, activating Herald of Ice. This initiates the chain reaction. Prioritizing Herald of Ice is advantageous because Freeze is easier to inflict than Shock, and Herald of Thunder's lightning bolts have better range.
