Vaal Arc

Spell, Chaining, Vaal, Lightning, Duration

Level: (1–20)

Souls Per Use: 25

Can Store 1 Use

Soul Gain Prevention: 2 sec

Cast Time: 0.70 sec

Critical Strike Chance: 6.00%

Effectiveness of Added Damage: 220%

Requires Level (12–70), (33–155) Int

A shocking arc of lightning reaches from the caster to a targeted enemy and chains to other enemies. Each time the arc chains from an enemy, it will do so simultaneously to two further enemies, but never to enemies that have already been hit by any of these chains. Also grants a buff making your Arc damage lucky for a short duration.

Deals (38–924) to (64–1539) Lightning Damage
100% increased Duration of Lightning Ailments
Base duration is 4 seconds
Chains +(5–9) Times
100% chance to Shock enemies
15% more Damage with Hits and Ailments for each remaining Chain
100% increased Effect of Lightning Ailments

Corrupted

Additional Effects From Quality:

Chains +(0–1) Times

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

Genus

Level Effect /40

Implicit
100% chance to Shock enemies 100% increased Effect of Lightning Ailments 100% increased Duration of Lightning Ailments 15% more Damage with Hits and Ailments for each remaining Chain Base duration is 4 seconds (Shock increases Damage taken by up to 50%, depending on the amount of Lightning Damage in the hit, for 2 seconds) (Lightning Ailments are Shocked and Sapped)

Level	Requires Level	Int	Deals 38 to 64 Lightning Damage	Chains +5 Times	Experience
1	12	33	38, 64	5	15,249
2	15	39	48, 80	5	41,517
3	19	48	64, 106	5	81,983
4	23	56	83, 138	5	147,968
5	27	64	105, 176	6	250,557
6	31	73	133, 222	6	405,086
7	35	81	166, 277	6	447,718
8	38	88	196, 326	6	615,318
9	41	94	229, 382	7	834,639
10	44	100	268, 446	7	1,570,760
11	47	106	312, 519	7	1,633,987
12	50	113	362, 603	7	2,151,030
13	53	119	419, 698	8	2,812,189
14	56	125	483, 806	8	5,099,360
15	59	132	557, 929	8	9,400,731
16	62	138	641, 1068	8	15,273,366
17	64	142	703, 1172	9	26,286,582
18	66	146	770, 1284	9	62,890,590
19	68	151	844, 1406	9	212,046,017
20	70	155	924, 1539	9
21	72		1010, 1684	10
22	74		1104, 1841	10
23	76		1207, 2011	10
24	78		1318, 2196	10
25	80		1438, 2397	11
26	82		1569, 2614	11
27	84		1710, 2851	11
28	86		1864, 3107	11
29	88		2031, 3384	12
30	90		2211, 3685	12
31	91		2307, 3845	12
32	92		2407, 4011	12
33	93		2511, 4184	12
34	94		2619, 4365	12
35	95		2731, 4552	12
36	96		2848, 4747	13
37	97		2970, 4950	13
38	98		3097, 5161	13
39	99		3229, 5381	13
40	100		3366, 5610	13

Attribute /8

Key	Value
Acronym	Projectile, Ignite
DropLevel	12
BaseType	Vaal Arc
Class	Skill Gems
TargetTypes	Ground, Enemy
Type	Spell, Damage, Trappable, Totemable, Mineable, Chains, Vaal, Lightning, Duration
ItemType	Metadata/Items/Gems/SkillGemVaalArc
Reference	poe.ninja, Community Wiki

Microtransactions /4 ⍟

Purple Arc

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.

Supported By /78 ⍟

Active Type: Spell, Damage, Trappable, Totemable, Mineable, Chains, Vaal, Lightning, Duration

Icon	Name
	Added Fire Damage Support Supports any skill that hits enemies.
	Added Cold Damage Support Supports any skill that hits enemies.
	Added Lightning Damage Support Supports any skill that hits enemies.
	Increased Critical Strikes Support Supports any skill that hits enemies.
	Increased Critical Damage Support Supports any skill that hits enemies.
	Knockback Support Supports any skill that hits enemies.
	Life Leech Support Supports any skill that hits enemies, causing those hits to leech life based on damage dealt.
	Added Chaos Damage Support Supports any skill that hits enemies.
	Stun Support Supports any skill that hits enemies, making it easier to stun enemies with those skills.
	Trap Support Supports spells, or attacks that use bows or wands. Instead of using that skill, you will throw a trap that will use the skill for you when an enemy walks near it. Traps cannot use channelling skills.
	Item Rarity Support Supports any skill that can kill enemies.
	Faster Casting Support Supports non-instant spell skills.
	Increased Duration Support Supports any skill with a duration.
	Cold to Fire Support Supports any skill that hits enemies.
	Combustion Support Supports any skill that hits enemies.
	Elemental Proliferation Support Supports any skill that hits enemies, or could otherwise apply elemental ailments.
	Culling Strike Support Supports any skill that hits enemies. If enemies are left below 10% of maximum life after being hit by these skills, they will be killed.
	Iron Will Support Supports spell skills, making the increase to physical melee damage from strength also increase their spell damage.
	Spell Totem Support Supports spell skills that are not triggered. Instead of casting that spell, you will summon a totem that casts the spell for you.
	Blastchain Mine Support Supports spells, or attacks that use bows or wands. Instead of using that skill, you will throw a mine that will use the skill for you when you detonate it. Mines cannot use channelling skills.
	Chance to Flee Support Supports any skill that hits enemies.
	Blind Support Supports any skill that hits enemies.
	Fire Penetration Support Supports any skill that hits enemies, making those hits penetrate enemy fire resistance.
	Cold Penetration Support Supports any skill that hits enemies, making those hits penetrate enemy cold resistance.
	Lightning Penetration Support Supports any skill that hits enemies, making those hits penetrate enemy lightning resistance.
	Elemental Penetration Support Supports any skill that hits enemies, making those hits penetrate enemy elemental resistances.
	Chain Support Supports projectile skills, and any other skills that chain.
	Power Charge On Critical Support Supports any skill that hits enemies.
	Burning Damage Support Supports any skill that hits enemies, or can deal burning damage directly.
	Hextouch Support Must support both a skill that hits enemies, and a hex curse skill to work. The hex will be applied when enemies are hit by the other skill. Cannot support totems, traps, or mines. Minions cannot apply hexes this way.
	Less Duration Support Supports any skill that has a duration.
	Block Chance Reduction Support Supports any skill that hits enemies.
	Physical to Lightning Support Supports any skill that hits enemies.
	Ice Bite Support Supports any skill you use to hit enemies yourself. Cannot support skills used by totems, traps, or mines.
	Hypothermia Support Supports any skill that deals damage.
	Innervate Support Supports any skill you use to hit enemies yourself. Cannot support skills used by totems, traps, or mines.
	Critical Strike Affliction Support Supports any skill that hits enemies.
	Void Manipulation Support Supports any skill that deals damage.
	Controlled Destruction Support Supports attack skills, or spell skills that deal damage.
	Swift Affliction Support Supports any skill that has a duration, or can hit enemies to inflict ailments on them.
	Elemental Focus Support Supports any skill that hits or burns enemies, or inflicts elemental ailments.
	Ignite Proliferation Support Supports any skill that hits enemies.
	Chance to Poison Support Supports any skill that hits enemies.
	Deadly Ailments Support Supports any skill that hits enemies.
	Decay Support Supports any skill that hits enemies.
	Efficacy Support Supports any skill that deals damage or has a duration.
	Vile Toxins Support Supports any skill that hits enemies.
	Immolate Support Supports any skill that hits enemies.
	Unbound Ailments Support Supports any skill that hits enemies or inflicts ailments
	Brutality Support Supports any skill that deals damage.
	Arcane Surge Support Each supported spell will track how much mana you spend on it, granting a buff when the total mana spent reaches a threshold. Cannot support skills used by totems, traps, mines or skills with a reservation.
	Summon Phantasm Support Supports skills that can hit enemies, or create minions. When those skills or minions kill enemies, or hit rare or unique enemies they will have a chance to summon a Phantasm minion, which uses a piercing projectile spell that deals physical damage.
	Bonechill Support Supports any skill that can chill enemies or create chilling areas.
	Energy Leech Support Supports any skill that hits enemies, causing those hits to leech energy shield based on damage dealt.
	High-Impact Mine Support Supports spells, or attacks that use bows or wands. Instead of using that skill, you will throw a mine that will use the skill for you when you detonate it. Mines cannot use channelling skills.
	Awakened Added Fire Damage Support Supports any skill that hits enemies.
	Awakened Brutality Support Supports any skill that deals damage.
	Awakened Burning Damage Support Supports any skill that hits enemies, or can deal burning damage directly.
	Awakened Fire Penetration Support Supports any skill that hits enemies, making those hits penetrate enemy fire resistance.
	Awakened Added Cold Damage Support Supports any skill that hits enemies.
	Awakened Chain Support Supports projectile skills, and any other skills that chain.
	Awakened Cold Penetration Support Supports any skill that hits enemies, making those hits penetrate enemy cold resistance.
	Awakened Deadly Ailments Support Supports any skill that hits enemies.
	Awakened Swift Affliction Support Supports any skill that has a duration, or can hit enemies to inflict ailments on them.
	Awakened Void Manipulation Support Supports any skill that deals damage.
	Awakened Added Chaos Damage Support Supports any skill that hits enemies.
	Awakened Added Lightning Damage Support Supports any skill that hits enemies.
	Awakened Controlled Destruction Support Supports attack skills, or spell skills that deal damage.
	Awakened Hextouch Support Must support both a skill that hits enemies, and a hex curse skill to work. The hex will be applied when enemies are hit by the other skill. Cannot support totems, traps, or mines. Minions cannot apply hexes this way.
	Awakened Elemental Focus Support Supports any skill that hits or burns enemies, or inflicts elemental ailments.
	Awakened Lightning Penetration Support Supports any skill that hits enemies, making those hits penetrate enemy lightning resistance.
	Awakened Unbound Ailments Support Supports any skill that hits enemies or inflicts ailments
	Trinity Support Supports skills that hit enemies, causing them to gain bonuses while you have resonance of all three elements, and to grant resonance of elements other than the highest one in a hit. There is a maximum of 50 Resonance for each Element. Cannot support triggered skills, instant skills, orb skills, brands, skills with a reservation, or skills used by totems, traps, or mines. Cannot modify the skills of minions.
	Cruelty Support Supports any skill that hits enemies. Minions cannot gain Cruelty.
	Overcharge Support Supports any skill that hits enemies.
	Spellblade Support Supports spells that hit enemies. Cannot modify the skills of minions.
	Devour Support Supports any skill that hits enemies.
	Sadism Support Supports any skill that hits enemies.

Arc

Level: (1–40)

Cost: (8–31) Mana

Cast Time: 0.70 sec

Requires Level (12–100)

An arc of lightning reaches from the caster to a targeted enemy and chains to other enemies, but not immediately back. Each time the arc chains, it will also chain a secondary arc to another enemy that the main arc has not already hit, which cannot chain further.

Deals (6–871) to (32–4934) Lightning Damage
Chains +(4–11) Times
15% more Damage with Hits and Ailments for each remaining Chain
arc chain distance [35]
arc enhanced behaviour [1]
disable visual hit effect [1]

Additional Effects From Quality:

Chains +(0–1) Times

Level Effect /40

Implicit
15% more Damage with Hits and Ailments for each remaining Chain

Level	Requires Level	Cost	Deals 6 to 32 Lightning Damage	Chains +4 Times
1	12	8	6, 32	4
2	15	9	7, 41	4
3	19	10	10, 56	4
4	23	11	13, 75	4
5	27	12	17, 98	4
6	31	13	22, 127	5
7	35	14	29, 162	5
8	38	15	34, 194	5
9	41	16	41, 232	5
10	44	16	49, 276	5
11	47	17	58, 327	6
12	50	18	68, 387	6
13	53	19	81, 457	6
14	56	19	95, 538	6
15	59	20	111, 631	6
16	62	21	131, 740	7
17	64	21	145, 822	7
18	66	22	161, 912	7
19	68	22	179, 1012	7
20	70	23	198, 1122	7
21	72	24	219, 1242	8
22	74	24	243, 1375	8
23	76	25	269, 1522	8
24	78	25	297, 1683	8
25	80	26	328, 1859	8
26	82	26	362, 2054	9
27	84	27	400, 2268	9
28	86	27	442, 2503	9
29	88	28	487, 2761	9
30	90	28	537, 3044	9
31	91	28	564, 3196	10
32	92	29	592, 3356	10
33	93	29	622, 3522	10
34	94	29	652, 3697	10
35	95	29	685, 3880	10
36	96	30	719, 4072	11
37	97	30	754, 4273	11
38	98	30	791, 4483	11
39	99	30	830, 4703	11
40	100	31	871, 4934	11

Attribute /6

Key	Value
Cost	iLvl 1: Normal: 3xArmourer's Scrap · Normal: 10000xGold
Acronym	Projectile, Chain, Armour, Evasion
BaseType	Arc
TargetTypes	Ground, Enemy
Type	Spell, Damage, Trappable, Totemable, Mineable, Chains, Multicastable, Triggerable, Lightning, CanRapidFire
ActiveSkillsCode	arc

Crucible Weapon /28

Weight	Desc
100 (T2)	-3% Chance to Block Allocates Arcane Sanctuary
300 (T3, T4)	20% reduced Effect of Arcane Surge on you 10% chance to Gain Arcane Surge when you deal a Critical Strike
300 (T3, T4)	20% reduced Effect of Arcane Surge on you 10% chance to Gain Arcane Surge when you deal a Critical Strike
300 (T3, T4)	20% reduced Effect of Arcane Surge on you 15% chance to Gain Arcane Surge when you deal a Critical Strike
300 (T3, T4)	20% reduced Effect of Arcane Surge on you 15% chance to Gain Arcane Surge when you deal a Critical Strike
300 (T3, T4)	20% increased Effect of Arcane Surge on you Buffs on you expire 10% faster
300 (T3, T4)	25% increased Effect of Arcane Surge on you Buffs on you expire 10% faster
300 (T3, T4)	40% increased Effect of Arcane Surge on you Buffs on you expire 20% faster
300 (T3, T4)	50% increased Effect of Arcane Surge on you Buffs on you expire 20% faster
250 (T3, T4)	20% increased Warcry Buff Effect Warcry Skills have 20% reduced Area of Effect
250 (T3, T4)	30% increased Warcry Buff Effect Warcry Skills have 20% reduced Area of Effect
250 (T3, T4)	35% increased Warcry Buff Effect Warcry Skills have 30% reduced Area of Effect
250 (T3, T4)	50% increased Warcry Buff Effect Warcry Skills have 30% reduced Area of Effect
250 (T3, T4)	30% reduced Damage 25% increased Damage for each time you've Warcried Recently
250 (T3, T4)	30% reduced Damage 40% increased Damage for each time you've Warcried Recently
250 (T3, T4)	50% reduced Damage 40% increased Damage for each time you've Warcried Recently
250 (T3, T4)	50% reduced Damage 60% increased Damage for each time you've Warcried Recently
100 (T3, T4)	Socketed Gems are Supported by Level 10 Arcane Surge
100 (T4)	Socketed Gems are Supported by Level 10 Arcane Surge
25 (T3, T4)	Socketed Gems are Supported by Level 10 Arcane Surge
25 (T4)	Socketed Gems are Supported by Level 10 Arcane Surge
1000 (T5)	Enemies Branded by Wintertide Brand or Arcanist Brand Explode on Death dealing a quarter of their maximum Life as Chaos damage
1000 (T5)	Ice Trap and Lightning Trap Damage Penetrates 15% of Enemy Elemental Resistances Ice Traps and Lightning Traps are triggered by your Warcries Ice Traps and Lightning Traps cannot be triggered by Enemies
1000 (T5)	Ice Trap and Lightning Trap Damage Penetrates 25% of Enemy Elemental Resistances Ice Traps and Lightning Traps are triggered by your Warcries Ice Traps and Lightning Traps cannot be triggered by Enemies
1000 (T5)	Arc and Crackling Lance gains Added Cold Damage equal to 12% of Mana Cost, if Mana Cost is not higher than the maximum you could spend 15% increased Cost of Arc and Crackling Lance
1000 (T5)	Arc and Crackling Lance gains Added Cold Damage equal to 20% of Mana Cost, if Mana Cost is not higher than the maximum you could spend 25% increased Cost of Arc and Crackling Lance
1000 (T1, T2, T3, T4, T5)	Socketed Gems are Supported by Level 30 Arcane Surge
1000 (T1, T2, T3, T4, T5)	Socketed Gems are Supported by Level 30 Archmage

Supported By /85

Active Type: Spell, Damage, Trappable, Totemable, Mineable, Chains, Multicastable, Triggerable, Lightning, CanRapidFire

Icon	Name
	Added Fire Damage Support Supports any skill that hits enemies.
	Added Cold Damage Support Supports any skill that hits enemies.
	Added Lightning Damage Support Supports any skill that hits enemies.
	Increased Critical Strikes Support Supports any skill that hits enemies.
	Increased Critical Damage Support Supports any skill that hits enemies.
	Knockback Support Supports any skill that hits enemies.
	Life Leech Support Supports any skill that hits enemies, causing those hits to leech life based on damage dealt.
	Added Chaos Damage Support Supports any skill that hits enemies.
	Stun Support Supports any skill that hits enemies, making it easier to stun enemies with those skills.
	Trap Support Supports spells, or attacks that use bows or wands. Instead of using that skill, you will throw a trap that will use the skill for you when an enemy walks near it. Traps cannot use channelling skills.
	Item Rarity Support Supports any skill that can kill enemies.
	Faster Casting Support Supports non-instant spell skills.
	Cold to Fire Support Supports any skill that hits enemies.
	Combustion Support Supports any skill that hits enemies.
	Elemental Proliferation Support Supports any skill that hits enemies, or could otherwise apply elemental ailments.
	Culling Strike Support Supports any skill that hits enemies. If enemies are left below 10% of maximum life after being hit by these skills, they will be killed.
	Iron Will Support Supports spell skills, making the increase to physical melee damage from strength also increase their spell damage.
	Spell Totem Support Supports spell skills that are not triggered. Instead of casting that spell, you will summon a totem that casts the spell for you.
	Blastchain Mine Support Supports spells, or attacks that use bows or wands. Instead of using that skill, you will throw a mine that will use the skill for you when you detonate it. Mines cannot use channelling skills.
	Chance to Flee Support Supports any skill that hits enemies.
	Blind Support Supports any skill that hits enemies.
	Fire Penetration Support Supports any skill that hits enemies, making those hits penetrate enemy fire resistance.
	Cold Penetration Support Supports any skill that hits enemies, making those hits penetrate enemy cold resistance.
	Lightning Penetration Support Supports any skill that hits enemies, making those hits penetrate enemy lightning resistance.
	Elemental Penetration Support Supports any skill that hits enemies, making those hits penetrate enemy elemental resistances.
	Chain Support Supports projectile skills, and any other skills that chain.
	Spell Echo Support Supports spell skills, making them repeat when cast. Cannot support Vaal skills, totem skills, channelling skills, triggered skills, instant skills, blink skills, or skills with a reservation.
	Power Charge On Critical Support Supports any skill that hits enemies.
	Burning Damage Support Supports any skill that hits enemies, or can deal burning damage directly.
	Hextouch Support Must support both a skill that hits enemies, and a hex curse skill to work. The hex will be applied when enemies are hit by the other skill. Cannot support totems, traps, or mines. Minions cannot apply hexes this way.
	Cast on Death Support Each supported spell skill will be triggered when you die. Cannot support skills used by totems, traps, or mines. Vaal skills, channelling skills, and skills with a reservation cannot be triggered.
	Cast when Damage Taken Support Each supported spell skill will track damage you take, and be triggered when the total damage taken reaches a threshold. Cannot support skills used by totems, traps, or mines. Vaal skills, channelling skills, and skills with a reservation cannot be triggered.
	Cast when Stunned Support Each supported spell skill will have a chance to be triggered when you are stunned. Cannot support skills used by totems, traps, or mines. Vaal skills, channelling skills, and skills with a reservation cannot be triggered.
	Block Chance Reduction Support Supports any skill that hits enemies.
	Physical to Lightning Support Supports any skill that hits enemies.
	Ice Bite Support Supports any skill you use to hit enemies yourself. Cannot support skills used by totems, traps, or mines.
	Hypothermia Support Supports any skill that deals damage.
	Innervate Support Supports any skill you use to hit enemies yourself. Cannot support skills used by totems, traps, or mines.
	Critical Strike Affliction Support Supports any skill that hits enemies.
	Void Manipulation Support Supports any skill that deals damage.
	Controlled Destruction Support Supports attack skills, or spell skills that deal damage.
	Swift Affliction Support Supports any skill that has a duration, or can hit enemies to inflict ailments on them.
	Elemental Focus Support Supports any skill that hits or burns enemies, or inflicts elemental ailments.
	Ignite Proliferation Support Supports any skill that hits enemies.
	Chance to Poison Support Supports any skill that hits enemies.
	Deadly Ailments Support Supports any skill that hits enemies.
	Decay Support Supports any skill that hits enemies.
	Efficacy Support Supports any skill that deals damage or has a duration.
	Vile Toxins Support Supports any skill that hits enemies.
	Immolate Support Supports any skill that hits enemies.
	Unbound Ailments Support Supports any skill that hits enemies or inflicts ailments
	Brutality Support Supports any skill that deals damage.
	Arcane Surge Support Each supported spell will track how much mana you spend on it, granting a buff when the total mana spent reaches a threshold. Cannot support skills used by totems, traps, mines or skills with a reservation.
	Summon Phantasm Support Supports skills that can hit enemies, or create minions. When those skills or minions kill enemies, or hit rare or unique enemies they will have a chance to summon a Phantasm minion, which uses a piercing projectile spell that deals physical damage.
	Bonechill Support Supports any skill that can chill enemies or create chilling areas.
	Energy Leech Support Supports any skill that hits enemies, causing those hits to leech energy shield based on damage dealt.
	Unleash Support Supports spell skills, making their effect reoccur when cast. Cannot support skills with cooldowns, triggered skills, Brand skills, Vaal skills, channelling skills, skills with a reservation, or skills used by totems, traps, or mines. Cannot modify the skills of minions.
	High-Impact Mine Support Supports spells, or attacks that use bows or wands. Instead of using that skill, you will throw a mine that will use the skill for you when you detonate it. Mines cannot use channelling skills.
	Awakened Added Fire Damage Support Supports any skill that hits enemies.
	Awakened Brutality Support Supports any skill that deals damage.
	Awakened Burning Damage Support Supports any skill that hits enemies, or can deal burning damage directly.
	Awakened Fire Penetration Support Supports any skill that hits enemies, making those hits penetrate enemy fire resistance.
	Awakened Added Cold Damage Support Supports any skill that hits enemies.
	Awakened Chain Support Supports projectile skills, and any other skills that chain.
	Awakened Cold Penetration Support Supports any skill that hits enemies, making those hits penetrate enemy cold resistance.
	Awakened Deadly Ailments Support Supports any skill that hits enemies.
	Awakened Swift Affliction Support Supports any skill that has a duration, or can hit enemies to inflict ailments on them.
	Awakened Void Manipulation Support Supports any skill that deals damage.
	Awakened Added Chaos Damage Support Supports any skill that hits enemies.
	Awakened Added Lightning Damage Support Supports any skill that hits enemies.
	Awakened Controlled Destruction Support Supports attack skills, or spell skills that deal damage.
	Awakened Hextouch Support Must support both a skill that hits enemies, and a hex curse skill to work. The hex will be applied when enemies are hit by the other skill. Cannot support totems, traps, or mines. Minions cannot apply hexes this way.
	Awakened Elemental Focus Support Supports any skill that hits or burns enemies, or inflicts elemental ailments.
	Awakened Lightning Penetration Support Supports any skill that hits enemies, making those hits penetrate enemy lightning resistance.
	Awakened Spell Echo Support Supports spell skills, making them repeat when cast. Cannot support Vaal skills, totem skills, channelling skills, triggered skills, instant skills, blink skills, or skills with a reservation.
	Awakened Unbound Ailments Support Supports any skill that hits enemies or inflicts ailments
	Awakened Unleash Support Supports spell skills, making their effect reoccur when cast. Cannot support skills with cooldowns, triggered skills, Brand skills, Vaal skills, channelling skills, skills with a reservation, or skills used by totems, traps, or mines. Cannot modify the skills of minions.
	Archmage Support Supports spell skills that deal damage with hits and have no reservation. Cannot support arcane skills, Brand skills, Orb skills, Vaal skills, or skills used by totems, traps or mines. Cannot modify the skills of minions.
	Trinity Support Supports skills that hit enemies, causing them to gain bonuses while you have resonance of all three elements, and to grant resonance of elements other than the highest one in a hit. There is a maximum of 50 Resonance for each Element. Cannot support triggered skills, instant skills, orb skills, brands, skills with a reservation, or skills used by totems, traps, or mines. Cannot modify the skills of minions.
	Cruelty Support Supports any skill that hits enemies. Minions cannot gain Cruelty.
	Overcharge Support Supports any skill that hits enemies.
	Spellblade Support Supports spells that hit enemies. Cannot modify the skills of minions.
	Devour Support Supports any skill that hits enemies.
	Sacrifice Support Supports spell skills that hit enemies and have no reservation. Cannot support brand skills, orb skills, channelling skills, Vaal skills or skills used by traps or mines. Cannot modify the skills of minions.
	Sadism Support Supports any skill that hits enemies.

Community Wiki

Edit

Vaal 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.

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). Vaal Skill Gems can now only be obtained from a set of specific methods such as Corrupting Gems, Vaal Side Areas, Divination Cards (that specifically grant Vaal Skill Gems) and the Lapidary Lens in the Temple of Atzoatl.
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	Arc 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.

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