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Vaal ArcVaal, Spell, Chaining, Lightning, Duration
Level: (1-20)
Souls Per Use: 25
Can Store 1 Use(s)
Soul Gain Prevention: 0 sec
Cast Time: 0.80 sec
Critical Strike Chance: 5.00%
Effectiveness of Added Damage: 180%
Requires Level 12A shocking arc of lightning stretches from the caster to a targeted enemy and chains to other nearby enemies. Each time the beam chains it will also chain simultaneously to a second enemy, but no enemy can be hit twice by the beams. Also grants a buff making you lucky when damaging enemies with Arc for a short duration.Per 1% Quality:1Superior1.5% increased Duration of Lightning AilmentsBase duration is 4 seconds
Deals (38-924) to (64-1539) Lightning Damage
100% chance to Shock enemies
Chains +(5-9) Times
100% increased Effect of Lightning Ailments
100% increased Duration of Lightning Ailments
15% more Damage for each remaining Chain
Modifiers to Buff Duration also apply to this Skill's Soul Gain Prevention
Corrupted
Place into an item socket of the right colour to gain this skill. Right click to remove from a socket.
Vaal Arc skill icon.pngVaal Arc inventory icon.png
Acquisition
Area level: 12
Vendor Offer
1x Scroll Fragment
Metadata
Item class: Active Skill Gems
Metadata ID: Metadata/Items/Gems/SkillGemVaalArc

Vaal Arc skill screenshot.jpg

For the non-Vaal counterpart, see Arc.

Vaal Arc is a vaal spell that launches a chaining lightning arc at the target that lasts until no valid target remains or all chains are used up.

Skill Functions and Interactions

Although Vaal Arc chains, it is similar to Arc in that it's not a projectile and therefore does not benefit from projectile-specific modifiers on gear, passives and skill gems.

Gem level progression

LevelRequired LevelRequired IntelligenceLightning
Damage
# ChainsExp.Total Exp.
1123338 to 64500
2153948 to 8051524915249
3194864 to 10654151756766
4235683 to 138581983138749
52764105 to 1766147968286717
63173133 to 2226250557537274
73581166 to 2776405086942360
83888196 to 32664477181390078
94194229 to 38276153182005396
1044100268 to 44678346392840035
1147106312 to 519715707604410795
1250113362 to 603716339876044782
1353119419 to 698821510308195812
1456125483 to 8068281218911008001
1559132557 to 9298509936016107361
1662138641 to 10688940073125508092
1764142703 to 117291527336640781458
1866146770 to 128492628658267068040
1968151844 to 1406962890590129958630
2070155924 to 15399212046017342004647
21721591010 to 168410N/AN/A
2274N/A1104 to 184110N/AN/A
2376N/A1207 to 201110N/AN/A
2478N/A1318 to 219610N/AN/A
2580N/A1438 to 239711N/AN/A
2682N/A1569 to 261411N/AN/A
2784N/A1710 to 285111N/AN/A
2886N/A1864 to 310711N/AN/A
2988N/A2031 to 338412N/AN/A
3090N/A2211 to 368512N/AN/A
3191N/A2307 to 384512N/AN/A
3292N/A2407 to 401112N/AN/A
3393N/A2511 to 418412N/AN/A
3494N/A2619 to 436512N/AN/A
3595N/A2731 to 455212N/AN/A
3696N/A2848 to 474713N/AN/A
3797N/A2970 to 495013N/AN/A
3898N/A3097 to 516113N/AN/A
3999N/A3229 to 538113N/AN/A
40100N/A3366 to 561013N/AN/A

Item acquisition
Questionmark.png

Upgrade paths

This item can be acquired through the following upgrade paths or vendor recipes:

AmountIngredientGeneral
Notes
Type
9Volatile PowerVolatile Power9Superior Vaal Gem
Quality: +20%
Corrupted
Unlimited power is apt to corrupt the minds of those who possess it.
random corrupted superior Vaal gem with 20% qualityAutomatic
1Gemcutter's IncubatorGemcutter's IncubatorAdds an incubated Quality Gem item to an equippable item
Item drops after killing # monsters
Quality GemRight click this item then left click an item to apply it. The Incubated item drops after killing a specific number of monsters.
random superior gemAutomatic
6The FoxThe Fox6Level 20 Gem"Masters of wit, strength and cunning. To survive the harsh winters, you must be like the fox."
- Ezomyte Proverb
random level 20 gemAutomatic
13The CataclysmThe Cataclysm13Level 21 Spell Gem
Corrupted
The mighty warriors traded in blows, the nimble archers in arrows, yet it was the brazen thaumaturgists who would bring catastrophe to all.
random corrupted level 21 Spell gemAutomatic
3Gemcutter's PromiseGemcutter's Promise3Superior Gem
Quality: +20%
"I swore to use my position to help the people. What good is power when it just accumulates on the already-powerful?" - Erasmus, Imperial Gemcutter
random superior gem with 20% qualityAutomatic
1The VoidThe Void1Reach into the Void and claim your prize.random divination card set exchangeAutomatic

Video demonstration

Alternate skill effects

Vaal Arc has the following alternate skill effects:

ItemEffect(s)
Automaton Arc EffectAutomaton Arc EffectSkill Gem EffectYour Arc becomes an Automaton Effect.Your Arc becomes an Automaton Effect.
Celestial Arc EffectCelestial Arc EffectSkill Gem EffectYour Arc becomes a Celestial Effect.Your Arc becomes a Celestial Effect.
Purple ArcPurple ArcSkill Gem EffectYour Arc becomes a Purple Effect.Your Arc becomes a Purple Effect.

Version history

Version Changes
3.14.0
  • No longer causes Modifiers to Buff Duration to also apply to this Skill's Soul Gain Prevention.
  • Now has a Cast Time of 0.7 seconds (previously 0.8).
  • Now has a Soul Gain Prevention duration of 2 seconds (previously 6).
3.3.0
  • Previously chained +40 times.
  • Now deals 38-64 lightning damage at gem level 1 (up from 2-35), up to 924-1539 lightning damage at gem level 20 (up from 49-939)
  • Now requires 25 souls per use (down from 32).
  • Now deals 15% more damage for each remaining chain.
  • Now increases shock duration by 100%.
  • Now increases the effect of shock by 100%.
  • Now chains 5 times, but each chain can split to another enemy (from which it can also chain). This number grows as it levels.
  • Now causes your Arc damage to be lucky for 4 seconds.
  • Now has an added damage effectiveness of 180% (up from 80%).
  • Now prevents you from gaining Vaal souls for 4 seconds after use.
2.0.0
  • Now has 100% chance to Shock (up from 10%). Now gains 1.5% increased Shock Duration per Quality.
1.1.2
  • ArcArcSpell, Chaining, Lightning
    Level: (1-20)
    Cost: (8-23) Mana
    Cast Time: 0.70 sec
    Critical Strike Chance: 5.00%
    Effectiveness of Added Damage: 80%
    Requires Level 12An arc of lightning stretches from the caster to a targeted enemy and chains on to other nearby enemies. Each time the main beam chains it will also chain to a second enemy, but that secondary arc cannot chain further.Per 1% Quality:1Superior2Anomalous3Divergent4Phantasmal0.5% chance to Shock enemies1% increased Chaining range0.5% increased Damage for each time this Skill has Chained1% reduced Enemy Stun ThresholdDeals (6-133) to (33-754) Lightning Damage
    10% chance to Shock enemies
    Chains +(4-7) Times
    (10-29)% increased Effect of Lightning Ailments
    15% more Damage for each remaining Chain
    Place into an item socket of the right colour to gain this skill. Right click to remove from a socket.
    Arc skill icon.png
    and Vaal Arc have had their damage increased by 60%. Arc and Vaal Arc can now no longer chain back to the same target immediately, but must now bounce one more time.
1.1.0d
  • Vaal Skill soul counts were initially balanced for Merciless difficulty, where there are more monsters. We want them to be easier to use in Normal and Cruel difficulty. We have halved the number of souls required for each skill. In Cruel difficulty, skills require 50% more souls to uses. In Merciless difficulty, they require 100% more (which is the same as before the patch).
1.1.0
  • Introduced to the game.