Heraldry Enchantment Unlocks Synergy in Path of Exile 2

This guide explains the Double Herald setup in Path of Exile 2, a technique combining Herald of Ice and Herald of Thunder for massive screen-clearing potential. While not strictly necessary to understand the interaction, knowing how it works enhances build crafting.

How to Use Double Herald (Herald of Ice + Herald of Thunder)

The Double Herald setup requires four key elements:

1. A Herald of Ice Skill Gem socketed with the Lightning Infusion Support Gem.
2. A Herald of Thunder Skill Gem socketed with the Cold Infusion Support Gem (Glaciation is also recommended).
3. 60 Spirit.
4. A method of inflicting Cold damage.

Remember to activate both Herald of Ice and Herald of Thunder in your skill menu.

Effective ways to initially proc Herald of Ice include:

• Inherent skills like the Monk's Ice Strike.
• Passive skills boosting Freeze buildup.
• Weapons or gloves with flat cold damage.
• The Against the Darkness Time-Lost Diamond Jewel (+Cold damage percentage).

How Herald of Ice and Thunder Interact

Herald of Ice activates when an enemy is Shattered (attacking a frozen enemy). Crucially, Herald of Ice's cold damage cannot Freeze, preventing self-perpetuating chain reactions.

Herald of Thunder activates upon killing a Shocked enemy, unleashing damaging electricity. Similarly, it cannot inflict Shock independently.

The synergy lies in their 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).

Ideally, this creates an infinite loop: Herald of Ice shocks, triggering Herald of Thunder, which freezes, triggering Herald of Ice, and so on. Realistically, the chain reaction usually ends after one or two cycles due to the need for a continuous stream of enemies. Breaches are ideal due to their high enemy density.

To initiate, you must first proc Herald of Ice by freezing and shattering an enemy with a cold skill (like Ice Strike). This icy explosion will Shock, starting the chain reaction. Prioritizing Herald of Ice is better because Freeze is easier to inflict than Shock, and Herald of Thunder's lightning bolts have greater range.