Crackling BarrierSupport, Lightning, Channelling Category: Crackling Barrier Tier: 2Support Requirements: +5 IntSupports Channelling Skills. While Channelling Supported Skills, you gain LightningThorns based off of your maximum Mana.Gain 15% of your maximum Mana as LightningThorns Damage while Channelling Supported SkillsPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.
Acquisition Drop restricted It can be obtained by engraving an Uncut Support Gem.Metadata Item class: Support Gem Metadata ID: Metadata/Items/Gem/SupportGemCracklingBarrier
When you retaliate with Thorns while channelling the supported skill, you deal Lightning damage equal to 15% of your maximum Mana.
At least for the purposes of Crackling Barrier, "while Channelling Supported Skills" includes parts of the skill that occur after releasing the button. For example, while hitting with Perfect Strike, even though you do not actually swing until after the button is released. This means that if supported by both Crackling Barrier and Barbs, Perfect Strike can hit enemies with the Lightning Thorns damage. (This combo is unique to Perfect Strike, as it is the only skill to meet the requirements for both support gems.)
Crackling Barrier seems to have a bug with Parry and Raise Shield, as it does nothing for these skills. Crackling Barrier works as expected with Resonating Shield, however.
Item acquisition
Crackling Barrier has restrictions on where or how it can drop.
