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Arc

Spell, 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 12

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.

Deals (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

Additional Effects From Quality:
(0–10)% chance to Shock enemies

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

Reference	poe.ninja, Fandom Community Wiki
DropLevel	12
BaseType	Arc
Class	Active Skill Gems
Vaal	Vaal Arc
Cost	Orb of Transmutation x 1
TargetTypes	Ground, Enemy
Type	Spell, Hit, SkillCanTrap, SkillCanTotem, SkillCanMine, Chaining, SpellCanRepeat, Triggerable, LightningSkill, CanRapidFire
IsActiveSkill	1
DefaultTxt	beam_skill_stat_descriptions
Metadata	Metadata/Items/Gems/SkillGemArc

Quality Gem /4

Type	Stats	Weight
Superior	(0–10)% chance to Shock enemies	50
Anomalous	(0–20)% increased Chaining range	100
Divergent	(0–10)% increased Damage for each time this Skill has Chained	50
Phantasmal	(0–20)% reduced Enemy Stun Threshold	20

Quest /2

Act	Quest Complete	NPC	Character
1	The Siren's Cadence	Quest Reward	Witch
1	The Siren's Cadence	Nessa	Shadow Templar Witch

Implicit
arc enhanced behaviour [1] disable visual hit effect [1]
10% chance to Shock enemies 15% more Damage for each remaining Chain

Level Effect /40

Level	Requires Level	Intelligence	Cost	Deals 6 to 33 Lightning Damage	Chains +4 Times	10% increased Effect of Lightning Ailments	Experience
1	12	33	8	6, 33	4	10	15,249
2	15	39	9	7, 41	4	11	41,517
3	19	48	10	9, 54	4	12	81,983
4	23	56	11	12, 70	4	13	147,968
5	27	64	12	16, 89	4	14	250,557
6	31	73	13	20, 112	5	15	405,086
7	35	81	14	25, 139	5	16	447,718
8	38	88	15	29, 163	5	17	615,318
9	41	94	16	34, 191	5	18	834,639
10	44	100	16	39, 223	5	19	1,570,760
11	47	106	17	46, 258	6	20	1,633,987
12	50	113	18	53, 299	6	21	2,151,030
13	53	119	19	61, 346	6	22	2,812,189
14	56	125	19	70, 399	6	23	5,099,360
15	59	132	20	81, 458	6	24	9,400,731
16	62	138	21	93, 526	7	25	15,273,366
17	64	142	21	102, 577	7	26	26,286,582
18	66	146	22	111, 631	7	27	62,890,590
19	68	151	22	122, 690	7	28	212,046,017
20	70	155	23	133, 754	7	29
21	72		24	145, 824	8	30
22	74		24	159, 900	8	31
23	76		25	173, 982	8	32
24	78		25	189, 1070	8	33
25	80		26	206, 1167	8	34
26	82		26	224, 1271	9	35
27	84		27	244, 1384	9	36
28	86		27	266, 1506	9	37
29	88		28	289, 1639	9	38
30	90		28	314, 1782	9	39
31	91		28	328, 1858	10	39
32	92		29	342, 1937	10	40
33	93		29	356, 2019	10	40
34	94		29	371, 2105	10	41
35	95		29	387, 2193	10	41
36	96		30	403, 2286	11	42
37	97		30	420, 2382	11	42
38	98		30	438, 2482	11	43
39	99		30	456, 2586	11	43
40	100		31	475, 2694	11	44

Arc Monster /31

Name	Modifiers	Spectre
Rukuku, the Pagan God	monster dropped item quantity +% [4000] monster dropped item rarity +% [1000]	Y
Crackling Essence	damage taken +% from spike traps final [-100] damage taken +% from arrow traps final [-100] immune to labyrinth degen effect [1] immune to lava damage [1]	Y
Blackguard Arcmage	Casts Arc Casts Lightning Thorns Blocks Spells base block % damage taken [10]	Y
Elder-Blessed Arcmage	Casts Arc Casts Lightning Thorns visual attached elder tentacles [1] Blocks Spells base block % damage taken [10]	Y
Piety	monster slain experience +% [250] monster dropped item quantity +% [0] monster dropped item rarity +% [5000] unique boss curse effect on self +% final [-33] cannot be taunted when taunted ms [0] energy shield recharge rate +% [-65] cannot be stunned while stunned [1] cannot be stunned for ms after stun finished [2000]	Y
Piety	energy shield recharge rate +% [-65] cannot be stunned while stunned [1] cannot be stunned for ms after stun finished [2000]	Y
Galvanic Ribbon	Channels Lightning	Y
Totem		Y
Herald of Thunder	Casts Shock Nova Casts Conductivity monster slain experience +% [100] monster dropped item quantity +% [1500] monster dropped item rarity +% [2000] number of additional curses allowed [1] unique boss curse effect on self +% final [-33] cannot be taunted when taunted ms [0] cannot be stunned while stunned [1] cannot be stunned for ms after stun finished [2000]	Y
The Wicked One	monster slain experience +% [100] monster dropped item quantity +% [1500] monster dropped item rarity +% [2000] unique boss curse effect on self +% final [-33] cannot be taunted when taunted ms [0] energy shield recharge rate +% [-65] cannot be stunned while stunned [1] cannot be stunned for ms after stun finished [2000]	Y
Piety the Empyrean	monster slain experience +% [100] monster dropped item quantity +% [1500] monster dropped item rarity +% [2000] unique boss curse effect on self +% final [-33] cannot be taunted when taunted ms [0] energy shield recharge rate +% [-65] cannot be stunned while stunned [1] cannot be stunned for ms after stun finished [2000]	Y
Minara Anemina	monster base type attack cast speed +% and damage -% final [33] monster dropped item rarity +% [500] unique boss curse effect on self +% final [0] Blocks Spells base block % damage taken [15]	Y
Minara Anemina	monster base type attack cast speed +% and damage -% final [33] monster dropped item rarity +% [500] unique boss curse effect on self +% final [0] monster no map drops [1] Blocks Spells base block % damage taken [15]	Y
Shrine Daemon		Y
The All-seeing Eye	monster dropped item quantity +% [300] monster dropped item rarity +% [800] monster additional quantity of dropped items in merciless +% [600] monster additional rarity of dropped items in merciless +% [600] monster additional quantity of dropped items in cruel +% [300] monster additional rarity of dropped items in cruel +% [300] monster no map drops [1]	Y
The All-seeing Eye	monster dropped item quantity +% [300] monster dropped item rarity +% [800] monster no map drops [1]	Y
The All-seeing Eye	monster dropped item quantity +% [300] monster dropped item rarity +% [800] monster additional quantity of dropped items in merciless +% [600] monster additional rarity of dropped items in merciless +% [600] monster additional quantity of dropped items in cruel +% [300] monster additional rarity of dropped items in cruel +% [300] monster no map drops [1] monster is invasion boss [1]	Y
Scale of Esh	grant actor scale +% to aura owner on death [1] grant attack speed +% to aura owner on death [5] grant cast speed +% to aura owner on death [5] grant damage reduction % to aura owner on death [2] soul is consumed on death [0] monster dropped item quantity +% [700] monster dropped item rarity +% [1000] monster beyond portal chance +% final [-66]	Y
Scale of Esh	monster dropped item quantity +% [100] monster dropped item rarity +% [300] monster beyond portal chance +% final [-66] monster no map drops [1]	Y
Scale of Esh	monster dropped item quantity +% [100] monster dropped item rarity +% [300] monster beyond portal chance +% final [-66]	Y
Scale of Esh	monster no drops or experience [1] cannot be used as minion [1]	N
Scale of Esh	monster dropped item quantity +% [700] monster dropped item rarity +% [1000] monster beyond portal chance +% final [-66]	Y
Tome of Thunder		Y
Scale of Esh	grant actor scale +% to aura owner on death [1] grant attack speed +% to aura owner on death [5] grant cast speed +% to aura owner on death [5] grant damage reduction % to aura owner on death [2] soul is consumed on death [0] monster dropped item quantity +% [700] monster dropped item rarity +% [1000] cannot be used as minion [1] monster beyond portal chance +% final [-66]	N
Scale of Esh	monster dropped item quantity +% [100] monster dropped item rarity +% [300] cannot be used as minion [1] monster beyond portal chance +% final [-66] monster no map drops [1]	N
Refinery Construct	display monster mod nemesis test [0]	Y
Mine Construct	display monster mod nemesis test [0] monster slain experience +% [0] monster dropped item quantity +% [0] monster dropped item rarity +% [300] monster no map drops [1]	Y
Syndicate Conduit	monster do not fracture [1]	Y
Arc Tower	blight tower damage +% final vs lightning monster [-99]	Y
Blighted Arcmage	Casts Arc Casts Lightning Thorns Blocks Spells base block % damage taken [10] monster slain experience +% [0] monster dropped item quantity +% [0] monster dropped item rarity +% [0] monster no map drops [1]	Y
Eden, Blightspeaker	Casts Arc Casts Lightning Thorns Blocks Spells base block % damage taken [10] monster slain experience +% [100] monster dropped item quantity +% [1500] monster dropped item rarity +% [2000] unique boss curse effect on self +% final [-33] cannot be knocked back [1]	Y

Microtransactions /4

Icon	Name
	Purple Arc Stack Size: 1 / 20 Your Arc becomes a Purple Effect.
	Automaton Arc Effect Your Arc becomes an Automaton Effect.
	Radiant Arc Effect Your Arc becomes a Radiant Effect.
	Celestial Arc Effect Your Arc becomes a Celestial Effect.

Labyrinth Enchantment helmet /31

Level	Name	Mod	Weight
The Merciless Labyrinth	Enchantment Ancestral Warchief Damage 1	25% increased Ancestral Warchief Totem Damage	100
The Eternal Labyrinth	Enchantment Ancestral Warchief Damage 2	40% increased Ancestral Warchief Totem Damage	100
The Merciless Labyrinth	Enchantment Arc Damage 1	25% increased Arc Damage	100
The Eternal Labyrinth	Enchantment Arc Damage 2	40% increased Arc Damage	75
The Merciless Labyrinth	Enchantment Creeping Frost Damage 1	25% increased Creeping Frost Damage	100
The Eternal Labyrinth	Enchantment Creeping Frost Damage 2	40% increased Creeping Frost Damage	75
The Merciless Labyrinth		Arc Chains an additional time
The Eternal Labyrinth	Enchantment Arc Num Of Additional Projectiles In Chain 1	Arc Chains an additional time	75
The Merciless Labyrinth	Enchantment Arc Shock Chance 1	Arc has +20% chance to Shock	100
The Eternal Labyrinth	Enchantment Arc Shock Chance 2	Arc has +30% chance to Shock	75
The Merciless Labyrinth	Enchantment Arc Damage Per Chain 1	Arc deals 8% increased Damage for each time it has Chained	100
The Eternal Labyrinth	Enchantment Arc Damage Per Chain 2	Arc deals 12% increased Damage for each time it has Chained	75
The Merciless Labyrinth	Enchantment Arcane Cloak Additional Mana Spent 1	Arcane Cloak Spends an additional 10% of current Mana	100
The Eternal Labyrinth	Enchantment Arcane Cloak Additional Mana Spent 2	Arcane Cloak Spends an additional 15% of current Mana	100
The Eternal Labyrinth	Enchantment Arcane Cloak Grants Life Regeneration 1	Arcane Cloak grants Life Regeneration equal to 15% of Mana Spent per Second	100
The Merciless Labyrinth	Enchantment Ancestor Warchief Area Of Effect 1	16% increased Ancestral Warchief Totem Area of Effect	100
The Eternal Labyrinth	Enchantment Ancestor Warchief Area Of Effect 2	24% increased Ancestral Warchief Totem Area of Effect	100
The Merciless Labyrinth	Enchantment Ancestor Warchief Melee Damage 1	Ancestral Warchief Totem grants 20% increased Melee Damage while Active	100
The Eternal Labyrinth	Enchantment Ancestor Warchief Melee Damage 2	Ancestral Warchief Totem grants 30% increased Melee Damage while Active	100
The Merciless Labyrinth	Enchantment Arctic Armour Buff Effect 1	24% increased Arctic Armour Buff Effect	100
The Eternal Labyrinth	Enchantment Arctic Armour Buff Effect 2	36% increased Arctic Armour Buff Effect	100
The Merciless Labyrinth	Enchantment Arctic Armour Mana Reservation 1	Arctic Armour has 20% reduced Reservation	100
The Eternal Labyrinth	Enchantment Arctic Armour Mana Reservation 2	Arctic Armour has 30% reduced Reservation	100
The Merciless Labyrinth	Enchantment Creeping Frost Duration 1	24% increased Creeping Frost Duration	100
The Eternal Labyrinth	Enchantment Creeping Frost Duration 2	36% increased Creeping Frost Duration	75
The Merciless Labyrinth	Enchantment Creeping Frost Area Of Effect 1	16% increased Creeping Frost Area of Effect	100
The Eternal Labyrinth	Enchantment Creeping Frost Area Of Effect 2	24% increased Creeping Frost Area of Effect	75
The Eternal Labyrinth	Enchantment Creeping Frost Chilling Area Movement Velocity 1	Creeping Frost's Chilling Area has 38% increased Movement Speed	75
The Merciless Labyrinth	Enchantment Arcanist Brand Cast Speed 1	Arcanist Brand has 8% increased Cast Speed	100
The Eternal Labyrinth	Enchantment Arcanist Brand Cast Speed 2	Arcanist Brand has 12% increased Cast Speed	100
The Eternal Labyrinth	Enchantment Arcanist Brand Unnerve 1	Spells Triggered by Arcanist Brand Unnerve enemies on Hit for 4 seconds	100

Supported By /81

Active Type: Spell, Hit, SkillCanTrap, SkillCanTotem, SkillCanMine, Chaining, SpellCanRepeat, Triggerable, LightningSkill, CanRapidFire

Support Gem	ActiveType
Added Fire Damage Support	Hit, Attack
Added Cold Damage Support	Attack, Hit
Added Lightning Damage Support	Attack, Hit
Increased Critical Strikes Support	Hit, Attack
Increased Critical Damage Support	Hit, Attack
Knockback Support	Hit, Attack
Life Leech Support	Hit, Attack
Added Chaos Damage Support	Hit, Attack
Stun Support	Hit, Attack
Trap Support	SkillCanTrap
Item Rarity Support	Hit, Attack, DamageOverTime, Type112
Faster Casting Support	Spell
Cold to Fire Support	Hit, Attack
Combustion Support	Hit, Attack
Elemental Proliferation Support	Hit, Attack, CauseElementalStatus
Culling Strike Support	Hit, Attack
Iron Will Support	Hit, Type59, Type66
Spell Totem Support	Spell, SkillCanTotem, AND
Blastchain Mine Support	SkillCanMine
Chance to Flee Support	Attack, Hit
Blind Support	Hit, Attack
Fire Penetration Support	Hit, Attack
Cold Penetration Support	Hit, Attack
Lightning Penetration Support	Hit, Attack
Elemental Penetration Support	Hit, Attack
Chain Support	Chaining, Projectile, MinionProjectile, AnimateWeapon, Type97
Spell Echo Support	SpellCanRepeat
Power Charge On Critical Support	Hit, Attack
Burning Damage Support	Hit, Attack, CausesBurning
Hextouch Support	Attack, Hit
Cast on Death Support	Spell, Triggerable, AND
Cast when Damage Taken Support	Spell, Triggerable, AND
Cast when Stunned Support	Spell, Triggerable, AND
Block Chance Reduction Support	Hit, Attack
Physical to Lightning Support	Hit, Attack
Ice Bite Support	Hit, Attack
Hypothermia Support	Hit, Attack, DamageOverTime
Innervate Support	Hit, Attack
Critical Strike Affliction Support	Hit, Attack
Void Manipulation Support	Hit, Attack, DamageOverTime
Controlled Destruction Support	Hit, Attack, Type59
Swift Affliction Support	Duration, Type55, Hit, Attack
Elemental Focus Support	Hit, Attack, CausesBurning, NonHitChill
Ignite Proliferation Support	Hit, Attack
Chance to Poison Support	Hit, Attack
Deadly Ailments Support	Hit, Attack
Decay Support	Hit, Attack
Efficacy Support	Hit, Attack, Type59, Duration, Type55, DamageOverTime
Vile Toxins Support	Hit, Attack
Immolate Support	Hit, Attack
Unbound Ailments Support	Hit, Attack, CauseElementalStatus
Brutality Support	Hit, Attack, DamageOverTime
Onslaught Support	Hit, Attack
Arcane Surge Support	Spell
Summon Phantasm Support	Attack, Hit, CreatesMinion
Bonechill Support	Attack, Hit, NonHitChill, ChillingArea
Energy Leech Support	Hit, Attack
Unleash Support	CanRapidFire
High-Impact Mine Support	SkillCanMine
Awakened Added Fire Damage Support	Hit, Attack
Awakened Brutality Support	Hit, Attack, DamageOverTime
Awakened Burning Damage Support	Hit, Attack, CausesBurning
Awakened Fire Penetration Support	Hit, Attack
Awakened Added Cold Damage Support	Attack, Hit
Awakened Chain Support	Chaining, Projectile, MinionProjectile, AnimateWeapon, Type97
Awakened Cold Penetration Support	Hit, Attack
Awakened Deadly Ailments Support	Hit, Attack
Awakened Swift Affliction Support	Duration, Type55, Hit, Attack
Awakened Void Manipulation Support	Hit, Attack, DamageOverTime
Awakened Added Chaos Damage Support	Hit, Attack
Awakened Added Lightning Damage Support	Attack, Hit
Awakened Controlled Destruction Support	Hit, Attack, Type59
Awakened Hextouch Support	Attack, Hit
Awakened Elemental Focus Support	Hit, Attack, CausesBurning, NonHitChill
Awakened Lightning Penetration Support	Hit, Attack
Awakened Spell Echo Support	SpellCanRepeat
Awakened Unbound Ailments Support	Hit, Attack, CauseElementalStatus
Awakened Unleash Support	CanRapidFire
Archmage Support	Hit, Spell, AND
Trinity Support	Hit, Attack
Cruelty Support	Hit, Attack

Community Wiki

Wiki Edit

Arc

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

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.

Wikis Content is available under CC BY-NC-SA 3.0 unless otherwise noted.