Lightning Penetration
Supports any skill that Hits enemies, making those Hits Penetrate enemy Lightning resistance.
How to think about it
This lets lightning hits bypass part of enemy lightning resistance. Its value depends on how much of the supported hit is lightning and what other resistance tools are already active.
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