PoE Arc Build, Support Gems, Arc Gem

Arc Arc is a lightning spell that creates a chaining pulse.

An 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.

Spell, Chaining, Lightning. Level: 1–20. Cost: 8–23 Mana. Cast Time: 0.70 sec. Critical Strike Chance: 5.00%. Effectiveness of Added Damage: 120%. Requires Level 12.

  • Deals (6–198) to (32–1122) Lightning Damage
  • Chains +(4–7) Times
  • 10% chance to Shock enemies
  • 15% more Damage for each remaining Chain
  • (10–29)% increased Effect of Lightning Ailments

Place into an item socket of the right colour to gain this skill. Right click to remove from a socket.

NameAdditional Effects From QualityWeight
Arc(0–10)% chance to Shock enemies50

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Related Gems

Level Effect

LevelRequires LevelIntelligenceCostDeals 6 to 32 Lightning DamageChains +4 Times10% increased Effect of Lightning AilmentsExperience
1123386, 3241015,249
2153997, 4141141,517
319481010, 5641281,983
423561113, 75413147,968
527641217, 98414250,557
631731322, 127515405,086
735811429, 162516447,718
838881534, 194517615,318
941941641, 232518834,639
10441001649, 2765191,570,760
11471061758, 3276201,633,987
12501131868, 3876212,151,030
13531191981, 4576222,812,189
14561251995, 5386235,099,360
155913220111, 6316249,400,731
166213821131, 74072515,273,366
176414221145, 82272626,286,582
186614622161, 91272762,890,590
196815122179, 1012728212,046,017
207015523198, 1122729
217224219, 1242830
227424243, 1375831
237625269, 1522832
247825297, 1683833
258026328, 1859834
268226362, 2054935
278427400, 2268936
288627442, 2503937
298828487, 2761938
309028537, 3044939
319128564, 31961039
329229592, 33561040
339329622, 35221040
349429652, 36971041
359529685, 38801041
369630719, 40721142
379730754, 42731142
389830791, 44831143
399930830, 47031143
4010031871, 49341144

Skill functions and interactions

  • Chain: Arc deals 15% more damage per remaining chain. Arc gains base chains from gem level, and additional sources of chain such as Chain Support are also taken into account for this bonus.
    • Every time Arc chains, a secondary Arc is created that hits an additional nearby enemy. This secondary Arc cannot chain further.
    • Arc remembers the last two enemies hit by the main Arc, and will not hit these enemies again. This means at least 3 enemies are required before the main Arc can hit the same enemy twice.

Item acquisition

Arc can drop anywhere. Drop level: 12.

Recipes

Arc can be created from the following recipes:

Amount Part Description
13 The Cataclysm Random corrupted level 21 Spell gem
6 The Fox Random level 20 gem
8 Dying Anguish Random level 19 gem with 19% alternative quality
8 The Hook Random corrupted level 21 gem with 23% alternative quality
3 Gemcutter's Promise Random gem with 20% quality
1 Gemcutter's Incubator Random gem with 1–20% quality
1 The Void Random divination card set exchange

Quest reward

This item is given as a quest reward for the following quests:

Class → Witch Shadow Ranger Duelist Marauder Templar Scion
Quest ↓
The Siren's Cadence
Act 1

Vendor reward

This item can be bought at the listed NPC vendors, after completing the following quests:

Class → Witch Shadow Ranger Duelist Marauder Templar Scion
Quest ↓
The Siren's Cadence
Act 1
Nessa
A Fixture of Fate
Act 3
Siosa
Fallen from Grace
Act 6
Lilly Roth

Related helmet enchantments

The following helmet enchantments affect Arc.

Name Level Labyrinth Stats Spawn Weighting
Enchantment Arc Damage 1 66 Merciless Labyrinth 25% increased Arc Damage helmet 100
default 0
Enchantment Arc Damage 2 75 Eternal Labyrinth 40% increased Arc Damage helmet 75
default 0
Enchantment Arc Damage Per Chain 1 66 Merciless Labyrinth Arc deals 8% increased Damage for each time it has Chained helmet 100
default 0
Enchantment Arc Damage Per Chain 2 75 Eternal Labyrinth Arc deals 12% increased Damage for each time it has Chained helmet 75
default 0
Enchantment Arc Num Of Additional Projectiles In Chain 1 75 Eternal Labyrinth Arc Chains an additional time helmet 75
default 0
Enchantment Arc Shock Chance 1 66 Merciless Labyrinth Arc has +20% chance to Shock helmet 100
default 0
Enchantment Arc Shock Chance 2 75 Eternal Labyrinth Arc has +30% chance to Shock helmet 75
default 0

Alternate skill effects

Arc has the following alternate skill effects:

Item Effect(s)
Automaton Arc Effect Your Arc becomes an Automaton Effect.
Celestial Arc Effect Your Arc becomes a Celestial Effect.
Purple Arc Your Arc becomes a Purple Effect.
Radiant Arc Effect Your Arc becomes a Radiant Effect.

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