ArcSpell, 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 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.Deals (6-198) to (32-1122) Lightning Damage 10% chance to Shock enemies Chains +(4-7) Times 15% more Damage for each remaining Chain (10-29)% increased Effect of Lightning Ailments
Additional Effects per 1% Quality: 0.5% chance to Shock enemies1% increased Chaining range0.5% increased Damage for each time this Skill has Chained1% reduced Enemy Stun ThresholdPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.Acquisition Drop level: 12Vendor Offer 1x Scroll FragmentMetadata Item class: Skill Gem Metadata ID: Metadata/Items/Gems/SkillGemArc
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.Supported Skills Chain +2 times Supported Skills deal (30-11)% less Damage with Hits
Additional Effects per 1% Quality: Supported Skills have 0.5% increased Chaining rangeThis 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 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.
The lucky buff from Vaal Arc only affects Arc's hit damage and not ailments.[1][2]
Gem level progression
Level
Mana Cost
Lightning Damage
Chains
Lightning Ailment Effect
Exp.
Total Exp.
1
12
33
8
6 to 32
+4
10%
0
0
2
15
39
9
7 to 41
+4
11%
15249
15249
3
19
48
10
10 to 56
+4
12%
41517
56766
4
23
56
11
13 to 75
+4
13%
81983
138749
5
27
64
12
17 to 98
+4
14%
147968
286717
6
31
73
13
22 to 127
+5
15%
250557
537274
7
35
81
14
29 to 162
+5
16%
405086
942360
8
38
88
15
34 to 194
+5
17%
447718
1390078
9
41
94
16
41 to 232
+5
18%
615318
2005396
10
44
100
16
49 to 276
+5
19%
834639
2840035
11
47
106
17
58 to 327
+6
20%
1570760
4410795
12
50
113
18
68 to 387
+6
21%
1633987
6044782
13
53
119
19
81 to 457
+6
22%
2151030
8195812
14
56
125
19
95 to 538
+6
23%
2812189
11008001
15
59
132
20
111 to 631
+6
24%
5099360
16107361
16
62
138
21
131 to 740
+7
25%
9400731
25508092
17
64
142
21
145 to 822
+7
26%
15273366
40781458
18
66
146
22
161 to 912
+7
27%
26286582
67068040
19
68
151
22
179 to 1012
+7
28%
62890590
129958630
20
70
155
23
198 to 1122
+7
29%
212046017
342004647
21
72
159
24
219 to 1242
+8
30%
N/A
N/A
22
74
N/A
24
243 to 1375
+8
31%
N/A
N/A
23
76
N/A
25
269 to 1522
+8
32%
N/A
N/A
24
78
N/A
25
297 to 1683
+8
33%
N/A
N/A
25
80
N/A
26
328 to 1859
+8
34%
N/A
N/A
26
82
N/A
26
362 to 2054
+9
35%
N/A
N/A
27
84
N/A
27
400 to 2268
+9
36%
N/A
N/A
28
86
N/A
27
442 to 2503
+9
37%
N/A
N/A
29
88
N/A
28
487 to 2761
+9
38%
N/A
N/A
30
90
N/A
28
537 to 3044
+9
39%
N/A
N/A
31
91
N/A
28
564 to 3196
+10
39%
N/A
N/A
32
92
N/A
29
592 to 3356
+10
40%
N/A
N/A
33
93
N/A
29
622 to 3522
+10
40%
N/A
N/A
34
94
N/A
29
652 to 3697
+10
41%
N/A
N/A
35
95
N/A
29
685 to 3880
+10
41%
N/A
N/A
36
96
N/A
30
719 to 4072
+11
42%
N/A
N/A
37
97
N/A
30
754 to 4273
+11
42%
N/A
N/A
38
98
N/A
30
791 to 4483
+11
43%
N/A
N/A
39
99
N/A
30
830 to 4703
+11
43%
N/A
N/A
40
100
N/A
31
871 to 4934
+11
44%
N/A
N/A
Gem quality
Type
Stats (per 1% quality)
Weight
Superior
0.5% chance to Shock enemies
50
Anomalous
1% increased Chaining range
100
Divergent
0.5% increased Damage for each time this Skill has Chained
50
Phantasmal
1% reduced Enemy Stun Threshold
20
Item acquisition
Arc can drop anywhere.
Recipes
Arc can be created from the following recipes:
Amount
Part
Description
Meta
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 corruptedlevel 21 Spell gem
A
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
A
8
Dying AnguishDying Anguish8Level 19 Gem Alternate 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
A
8
The HookThe Hook8Level 21 Gem Alternate Quality:+23% CorruptedEvery obsession began with a single, innocent taste.
Random corruptedlevel 21 gem with 23% alternative quality
A
3
Gemcutter's PromiseGemcutter's Promise3Gem 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 gem with 20% quality
A
1
Gemcutter's IncubatorGemcutter's IncubatorStack Size: 10Adds an incubated Quality Gem item to an equippable item Item drops after killing {0} monstersRight click this item then left click an item to apply it. The Incubated item drops after killing a specific number of monsters. Shift click to unstack.
Random gem with 1–20% quality
A
1
The VoidThe Void1Reach into the Void and claim your prize.
Random divination card set exchange
A
Quest reward
This item is given as a quest reward for the following quests:
Damage increased by around 20% higher at level 20.
In addition to having more damage, Arc now increases in number of chains more often as it levels up. At level 20, it chains seven times. Previously this was five.
ArcArcSpell, 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 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.Deals (6-198) to (32-1122) Lightning Damage 10% chance to Shock enemies Chains +(4-7) Times 15% more Damage for each remaining Chain (10-29)% increased Effect of Lightning Ailments
Additional Effects per 1% Quality: 0.5% chance to Shock enemiesPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket. and Vaal ArcVaal ArcSpell, Chaining, Vaal, Lightning, Duration Level: (1-20) Souls Per Use: 25 Can Store 1 Use(s) Soul Gain Prevention: 2 sec Cast Time: 0.70 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.Deals (38-924) to (64-1539) Lightning Damage 100% increased Duration of Lightning Ailments Base duration is 4.00 seconds 100% chance to Shock enemies Chains +(5-9) Times 15% more Damage for each remaining Chain 100% increased Effect of Lightning Ailments
Additional Effects per 1% Quality: 1.5% increased Duration of Lightning AilmentsCorruptedPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket. 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. Arc now increases in chain counts as the gem increases in level.
Spells with Damage Effectiveness no longer have their own damage affected by Damage Effectiveness. Damage values on these skills have been updated to reflect this.
QuickstepQuickstepSpell, Movement, Travel, Blink Level: 1 Cooldown Time: 10.00 sec Can Store 1 Use(s) Cast Time: 0.15 secPerforms a series of quick teleports towards a targeted location, stopping if you would overlap with monsters or terrain. If using the "Attack in Place" option, the direction is reversed. Shares a cooldown with other Blink skills. Cannot be supported.200% increased Cooldown Recovery Rate if used while a Unique Enemy is in your Presence Quality has no effect This Spell's Cast Speed cannot be modified
Additional Effects per 1% Quality: Quality has no effectPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.