The Spark/Lightning Conduit Archmage Stormweaver build is a powerful endgame option with almost limitless potential for growth. Archmage is a fantastic way to boost both offense and defense for spellcasters in the late game. If you want a build you can keep improving indefinitely, where every upgrade feels impactful, this is a great choice.
Spark fires many bouncing projectiles, making it excellent for clearing maps quickly. However, the key to this build is Lightning Conduit. Your Spark projectiles apply Exposure and huge Shocks to enemies, quickly charging your Cast on Shock ability for massive bursts of damage. The Strike Twice Ascendancy lets you double the power of Shocks, which you can further enhance to significantly increase the damage enemies take from both the Shocks and Lightning Conduit itself.
This endgame build guide for the Spark Stormweaver in Path of Exile 2 will focus on skills, rotation, passives, and gearing.
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Skills
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Spark: This is your main attack skill, used for clearing weaker enemies and applying Exposure and Shocks.
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Cast on Shock & Lightning Conduit: Shocking enemies fills the Cast on Shock Energy. When full, it triggers Lightning Conduit, a powerful burst of damage for tougher enemies.
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Flame Wall & Orb of Storms: These skills provide extra damage, making it easier to apply Shocks to stronger foes.
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Conductivity: Use this against bosses to lower their resistances and significantly increase your damage output.
For Cast on Shock to work best, aim for 150% more Energy Gain. You get 10% from the gem's quality and 100% from Impetus Support (totaling 110%). The remaining 40% needs to come from Jewels in your passive tree.
Rotation
For AoE clearing packs all you do is keep a safe distance away from mobs and use your Sparks.
For your Single Target rotation, you would place an Orb of Storms + Flame Wall down, curse the enemy with Conductivity, use Spark, and make sure to upkeep your Orb of Storms + Flame wall combination.
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Passives
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Travel Nodes: If you are lacking attributes just grab some up on the tree. Otherwise, prioritize Intelligence.
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Chance to Shock: You need enough Chance to Shock to reliably apply Shocks to enemies. Allocate these passive nodes as soon as you can.
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Mana Regeneration: The amount of Mana Regeneration you need depends on your gear. Adjust your build to match your gear's mana regeneration stats.
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Jewels: See the Gear section of this guide for information on which Jewels to use in your Jewel Sockets.
Ascendancy
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Constant Gale: You gain 10% more cast speed and 20% more mana regeneration from this. This mana regeneration is especially helpful for Mind Over Matter builds, which can have mana issues.
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Strike Twice: This makes your spells apply two shocks, doubling the damage from shock. While you'll naturally shock enemies due to your lightning damage, investing in increased Shock Chance is crucial for consistent application.
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Force of Will: This node allows you to scale your Arcane Surge effect based on your Mana, providing even more benefits from stacking Mana.
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Scouring Winds: Your final notable passive. It enhances your Lightning Exposure, providing an additional -20% to enemy resistances, effectively doubling the Exposure's effectiveness.
Gearing
Archmage and Mind Over Matter allow Mana to increase both your defenses and damage. This makes Eldritch Battery useful, converting Energy Shield from gear into Mana without hurting your defenses. Chaos Inoculation makes you completely immune from any chaos damage, and the unique amulet ‘The Everlasting Gaze’ gives a large Energy Shield pool.
Archmage adds extra lightning damage based on your maximum Mana, significantly boosting your damage by stacking Mana. Lightning Conduit's damage is multiplied by the strength of Shocks on the target. Shock and Ailment Magnitude increase the Shock value. Shocks increase enemy damage taken, doubled by your Strike Twice Ascendancy.
Mind Over Matter reduces total Mana Recovery by 50%, requiring high Mana and Mana Regeneration for comfortable gameplay. A high roll on ‘The Everlasting Gaze’ is crucial for base Energy Shield, which scales with % increased maximum Energy Shield and Maximum Mana for a large, scalable pool.
You need at least 60 extra Spirit to use Cast on Shock and Archmage. This is best obtained as a prefix on your body armor, making it a key item. Expert Keth Raiment or Expert Altar Robe bases are ideal due to their powerful implicit modifiers.
Energy gain is important for this build. You can find your Energy Gain Modifier percentage within the Cast on Shock skill panel (accessible through the gem menu, default key G).
Here are some of the ways you would scale your offenses:
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Spirit
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+# to Maximum Mana
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% increased Maximum Mana
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% increased lightning exposure effect
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% increased Proj Speed
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% Chance to Pierce
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% increased Spell or Lightning Damage
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% increased Chance to Shock
And for defenses:
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Fire, lightning and cold resistance
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Maximum mana
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Energy shield from items
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‘The Everlasting Gaze’ unique amulet
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% increased mana regeneration
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+# to intelligence
Weapons: Widowhail is a great, affordable weapon for clearing maps. Spark's ability to cover ground and hit many enemies is significantly improved by stats like Pierce and Projectile Speed, both of which can be found on Quivers.
The stats on Widowhail can vary a lot, so try to get one with the highest possible values. A roll of 250% is a key point that grants an extra gem level from the Quiver. Put two Soul Core of Xopecs jewels into the empty sockets to gain an additional 30% increased Chance to Shock from each jewel (60% total).
Quiver: You want to use the Penetrating Quiver Base because it provides pierce, and try to get the following stats on it:
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% inc proj speed
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+2 level of proj skills
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% Chance to pierce an enemy
For your Rings, Belt, Helmet, Boots, and Gloves what you want to focus on getting here is good defensive stats like:
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+# Maximum Mana
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+# to Energy Shield or % increased Energy Shield
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+# to Intelligence
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Fire, Cold, and Lightning Resistance
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Movement speed (on your boots)
Body Armour: Use either the Expert Keith Raiment or Expert Altar Robe base, try and get the previously mentioned defensive stats on it, as well as the +60 to Maximum Spirit.
Jewels: To maximize how quickly Cast on Shock gains Energy, you need a total of 150% increased Energy Gain. The Cast on Shock gem's quality provides 10%, and the Impetus Support gem adds 100%, for a combined 110%. You'll need to get the remaining 40% from Jewels.
Look for at least three Jewels with the "Meta Skills Gain #% Increased Energy" stat, adding up to at least 40% total.
For better survivability and to manage the Mana cost of repeated Lightning Conduit triggers while mapping, you should also get two Jewels with the "Recover 2% of Mana on Kill" stat.
Finally, prioritize these Jewel stats (in order):
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% increased Magnitude of Shock you inflict
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% increased Magnitude of Ailments you inflict
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% increased maximum Energy Shield
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% increased Cast Speed
Conclusion
The Archmage Spark Stormweaver is a ranged spellcaster that uses Lightning Conduit to deal massive damage by shocking enemies.
Archmage turns Mana into an offensive stat, while Mind Over Matter turns it into a defensive stat. This combination lets you stack Mana for both strong offense and defense.
Eldritch Battery changes all Energy Shield from your gear into extra Mana, increasing your damage without making you less survivable.
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