Arc

Spell, Projectile, Lightning, Chaining

Skill Gem · Tier 5

Level: 1–40

Cast Time: 1.1s

An arc of Lightning stretches from the caster to a targeted enemy and Chains on to other nearby enemies. Consumes a Lightning Infusion if possible to deal more damage and Chain further.

At level 1

Deals 1 to 13 Lightning Damage
Chains +5 times
Additional Chains from Lightning Infusion@6
More damage from Lightning Infusion@200%
50% increased Magnitude of Shock inflicted

At level 40

Deals 272 to 5175 Lightning Damage
Chains +12 times
Additional Chains from Lightning Infusion@6
More damage from Lightning Infusion@200%
50% increased Magnitude of Shock inflicted

Arc is a tier 5 Intelligence skill gem in Path of Exile 2 (Spell, Projectile, Lightning, Chaining). Support gems that can support it: 197.

Published Sep 27, 2026 · patch 0.5.5 Forbidden Rites

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Tier: 5
Level: 1–40
Cast Time: 1.1s
Tags: Spell, Projectile, Lightning, Chaining, Repeatable
Support Gems: 197

Per level

Level	Cost	Base Lightning Damage	Number Of Chains
1	8	1–13	5
2	9	1–17	5
3	11	1–24	5
4	12	2–31	5
5	14	2–39	6
6	17	3–48	6
7	19	3–58	6
8	22	4–69	6
9	24	4–82	6
10	28	5–96	7
11	31	6–112	7
12	35	7–130	7
13	39	8–151	7
14	44	9–174	7
15	49	10–199	8
16	54	12–228	8
17	60	14–261	8
18	67	16–298	8
19	74	18–339	8
20	81	20–386	9
21	90	23–439	9
22	99	26–499	9
23	109	30–567	9
24	120	34–644	9
25	132	38–731	10
26	145	44–830	10
27	159	50–943	10
28	174	56–1071	10
29	190	64–1217	10
30	208	73–1384	11
31	228	83–1574	11
32	249	94–1791	11
33	271	107–2039	11
34	296	122–2324	11
35	323	139–2650	11
36	352	159–3024	11
37	383	182–3454	11
38	417	208–3949	11
39	454	238–4518	11
40	494	272–5175	12

Support gems for Arc (197)

Arc

Per level

Support gems for Arc (197)

Lineage (26)

Spell (24)

Physical (22)

Projectile (22)

Fire (12)

Lightning (11)

Chaos (10)

Cold (10)

AoE (5)

Minion (4)

Attack (3)

Duration (3)

Warcry (2)

Payoff (1)

Other (42)