Path of Exile 2 Hayoxi's Soul Core of Heatproofing

Hayoxi's Soul Core of Heatproofing is a Tier 3 Socketable Item in Path of Exile 2, designed to enhance elemental mitigation by allowing a portion of Armour to apply to Cold Damage taken from Hits. When socketed into Body Armours, it grants 20% of Armour also applies to Cold Damage taken from Hits. Once socketed, it cannot be removed, but it can be overwritten with another rune or soul core.

Body Armours: 20% of Armour also applies to Cold Damage taken from Hits

Hayoxi's Soul Core of Heatproofing Features

• Item Type: Socketable – Soul Core

• Function:

  • Body Armours: 20% of Armour also applies to Cold Damage taken from Hits

• Usable on: Body Armours

• Stack Size: 1 / 10  |  Drop Level: 65  |  Required Level: 50

• Tier: Tier 3 Soul Core

How to Obtain Hayoxi's Soul Core of Heatproofing

• Drop Locations:

  • Drops from Trial of Chaos encounters via Inscribed Ultimatums. Tier 3 Trials yield Hayoxi's Soul Core of Heatproofing.

• Other Sources:

  • Not craftable directly

  • Can be acquired via the in-game Currency Exchange system

  • Bosses within Trials may drop additional Soul Cores or corrupted items

Hayoxi's Soul Core of Heatproofing Crafting Synergy & Usage

Hayoxi's Soul Core of Heatproofing is ideal for builds that need additional elemental damage mitigation, especially against Cold-based attacks.

• Best Use Cases:

  • Armour-based builds: characters that rely on high Armour values for physical damage reduction

  • Cold-vulnerable builds: characters that struggle against Cold Damage

  • Hybrid defense builds: combining Armour with other mitigation layers

• Socketing Notes:

  • Must be socketed into Body Armours with open Rune sockets

  • Cannot be removed once applied

  • Can be replaced with another rune or soul core since Patch 0.2.0 Dawn of the Hunt

Hayoxi's Soul Core of Heatproofing FAQs

How does Armour apply to Cold Damage?

Normally, Armour only mitigates physical damage. This modifier allows 20% of your Armour value to also reduce Cold Damage taken from Hits, improving survivability against elemental threats.

Does this stack with other sources of Cold mitigation?

Yes. This effect stacks additively with other sources of Cold Damage reduction, such as resistances, flasks, and passive skills.

Which builds benefit most from this effect?

Builds that rely on Armour and face frequent Cold Damage threats benefit most. Examples include melee characters, tanky builds, and those engaging Cold-based bosses.

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