
Cold Penetration
Supports any skill that Hits enemies, making those Hits Penetrate enemy Cold resistance.
How to think about it
This lets cold hits bypass part of enemy cold resistance. Its practical value depends on how much of the supported hit is cold and how resistance changes from Exposure or other effects are already being applied.
What it can support
PoExplorer accepts a match only when this support's allowed types intersect the active skill's source types, none of its exclusions conflict, and any gem-only restriction is satisfied.
Allowed source types
Skills that pass the source rules
These are compatibility candidates—not a promise that every pairing is optimal for a particular build.

Arc
Intelligence / Grants Active Skill / Spell

Ball Lightning
Intelligence / Grants Active Skill / Spell

Earthquake
Strength / Grants Active Skill / Attack

Flame Wall
Intelligence / Grants Active Skill / Spell

Frostbolt
Intelligence / Grants Active Skill / Spell

Ice Nova
Intelligence / Grants Active Skill / Spell

Ice Strike
Dexterity / Intelligence / Grants Active Skill

Lightning Arrow
Dexterity / Grants Active Skill / Attack

Lightning Rod
Dexterity / Grants Active Skill / Attack

Spark
Intelligence / Grants Active Skill / Spell

Sunder
Strength / Grants Active Skill / Attack