ArcSpell, 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:1Superior2Anomalous3Divergent4Phantasmalchain 1 times1% 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 ChainPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.Acquisition
Area level: 12Vendor Prices
Vendor Offer
1x Scroll FragmentMetadata
Item class: Active Skill Gems
Metadata ID: Metadata/Items/Gems/SkillGemArc
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:1Superior2Anomalous3Divergent4Phantasmalchain 1 times1% 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 ChainPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.Acquisition
Area level: 12Vendor Prices
Normal | 1x Orb of Transmutation |
1x Scroll FragmentMetadata
Item class: Active Skill Gems
Metadata ID: Metadata/Items/Gems/SkillGemArc
For the Vaal-themed counterpart, see Vaal 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 SupportChain SupportSupport, Chaining, Projectile
Icon: c
Level: (1-20)
Cost & Reservation Multiplier: 150%Requires Level 38Supports projectile skills, and any other skills that chain.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills have 1% increased Chaining rangeSupported Skills have 1% increased Projectile SpeedProjectiles Fired by Supported Skills have 4% chance not to Pierce EnemiesSupported Skills Chain +2 times
Supported Skills deal (30-11)% less Damage with HitsThis is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Active Skill Gem you wish to augment. Right click to remove from a socket. 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.
Gem level progression[ | ]
Level | Mana Cost | Lightning Damage | Chains | Shock Effect | Exp. | Total Exp. | ||
---|---|---|---|---|---|---|---|---|
1 | 12 | 33 | 8 | 6 to 33 | +4 | N/A | 0 | 0 |
2 | 15 | 39 | 9 | 7 to 41 | +4 | N/A | 15249 | 15249 |
3 | 19 | 48 | 10 | 9 to 54 | +4 | N/A | 41517 | 56766 |
4 | 23 | 56 | 11 | 12 to 70 | +4 | N/A | 81983 | 138749 |
5 | 27 | 64 | 12 | 16 to 89 | +4 | N/A | 147968 | 286717 |
6 | 31 | 73 | 13 | 20 to 112 | +5 | N/A | 250557 | 537274 |
7 | 35 | 81 | 14 | 25 to 139 | +5 | N/A | 405086 | 942360 |
8 | 38 | 88 | 15 | 29 to 163 | +5 | N/A | 447718 | 1390078 |
9 | 41 | 94 | 16 | 34 to 191 | +5 | N/A | 615318 | 2005396 |
10 | 44 | 100 | 16 | 39 to 223 | +5 | N/A | 834639 | 2840035 |
11 | 47 | 106 | 17 | 46 to 258 | +6 | N/A | 1570760 | 4410795 |
12 | 50 | 113 | 18 | 53 to 299 | +6 | N/A | 1633987 | 6044782 |
13 | 53 | 119 | 19 | 61 to 346 | +6 | N/A | 2151030 | 8195812 |
14 | 56 | 125 | 19 | 70 to 399 | +6 | N/A | 2812189 | 11008001 |
15 | 59 | 132 | 20 | 81 to 458 | +6 | N/A | 5099360 | 16107361 |
16 | 62 | 138 | 21 | 93 to 526 | +7 | N/A | 9400731 | 25508092 |
17 | 64 | 142 | 21 | 102 to 577 | +7 | N/A | 15273366 | 40781458 |
18 | 66 | 146 | 22 | 111 to 631 | +7 | N/A | 26286582 | 67068040 |
19 | 68 | 151 | 22 | 122 to 690 | +7 | N/A | 62890590 | 129958630 |
20 | 70 | 155 | 23 | 133 to 754 | +7 | N/A | 212046017 | 342004647 |
21 | 72 | 159 | 24 | 145 to 824 | +8 | N/A | N/A | N/A |
22 | 74 | N/A | 24 | 159 to 900 | +8 | N/A | N/A | N/A |
23 | 76 | N/A | 25 | 173 to 982 | +8 | N/A | N/A | N/A |
24 | 78 | N/A | 25 | 189 to 1070 | +8 | N/A | N/A | N/A |
25 | 80 | N/A | 26 | 206 to 1167 | +8 | N/A | N/A | N/A |
26 | 82 | N/A | 26 | 224 to 1271 | +9 | N/A | N/A | N/A |
27 | 84 | N/A | 27 | 244 to 1384 | +9 | N/A | N/A | N/A |
28 | 86 | N/A | 27 | 266 to 1506 | +9 | N/A | N/A | N/A |
29 | 88 | N/A | 28 | 289 to 1639 | +9 | N/A | N/A | N/A |
30 | 90 | N/A | 28 | 314 to 1782 | +9 | N/A | N/A | N/A |
31 | 91 | N/A | 28 | 328 to 1858 | +10 | N/A | N/A | N/A |
32 | 92 | N/A | 29 | 342 to 1937 | +10 | N/A | N/A | N/A |
33 | 93 | N/A | 29 | 356 to 2019 | +10 | N/A | N/A | N/A |
34 | 94 | N/A | 29 | 371 to 2105 | +10 | N/A | N/A | N/A |
35 | 95 | N/A | 29 | 387 to 2193 | +10 | N/A | N/A | N/A |
36 | 96 | N/A | 30 | 403 to 2286 | +11 | N/A | N/A | N/A |
37 | 97 | N/A | 30 | 420 to 2382 | +11 | N/A | N/A | N/A |
38 | 98 | N/A | 30 | 438 to 2482 | +11 | N/A | N/A | N/A |
39 | 99 | N/A | 30 | 456 to 2586 | +11 | N/A | N/A | N/A |
40 | 100 | N/A | 31 | 475 to 2694 | +11 | N/A | N/A | N/A |
Item acquisition
Upgrade paths
This item can be acquired through the following upgrade paths or vendor recipes:
Amount | Ingredient | General Notes | Type |
---|---|---|---|
8 | Dying AnguishDying Anguish8Level 19 Gem Alternative Quality: +19%Moribund, he gazed upon the journey taken as blood trickled down his chin. His eye closed on the city ahead that he would never call home. | random level 19 gem with 19% alternative quality | Automatic |
1 | Gemcutter's IncubatorGemcutter's IncubatorAdds an incubated Quality Gem item to an equippable item Item drops after killing # monstersQuality 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 gem | Automatic |
6 | The 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 gem | Automatic |
13 | The CataclysmThe Cataclysm13Level 21 Spell Gem CorruptedThe 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 gem | Automatic |
3 | Gemcutter'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% quality | Automatic |
1 | The VoidThe Void1Reach into the Void and claim your prize. | random divination card set exchange | Automatic |
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 | Stats | Spawn Weighting | |
---|---|---|---|
Enchantment Arc Damage 1 | 66 | 25% increased Arc Damage | helmet 100 default 0 |
Enchantment Arc Damage 2 | 75 | 40% increased Arc Damage | helmet 75 default 0 |
Enchantment Arc Damage Per Chain 1 | 66 | Arc deals 8% increased Damage for each time it has Chained | helmet 100 default 0 |
Enchantment Arc Damage Per Chain 2 | 75 | 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 | Arc Chains an additional time | helmet 75 default 0 |
Enchantment Arc Shock Chance 1 | 66 | Arc has +20% chance to Shock | helmet 100 default 0 |
Enchantment Arc Shock Chance 2 | 75 | 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 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 |
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3.11.0 |
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3.9.0 |
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3.6.2 |
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3.6.0 |
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3.3.0 |
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3.0.0 |
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2.1.0 |
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2.0.0 |
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1.3.1 |
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1.2.0 |
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1.1.2 |
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1.0.0 |
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0.11.1 |
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0.9.13 |
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