Arc of Oscillating

Arc of OscillatingSpell, Chaining, Lightning
Level: (1-20)
Cost: (8-23) Mana
Cast Time: 0.70 sec
Critical Strike Chance: 6.00%
Effectiveness of Added Damage: 60%Requires Level 12An arc of lightning reaches from the caster to a targeted enemy and chains to other enemies. Each time the arc chains, it will also chain a secondary arc to another enemy, but this secondary arc cannot chain further.Deals (#-381) to (#-2159) Lightning Damage
Chains +7 Times
40% more Damage with Hits and Ailments for each remaining Chain towards

Additional Effects From 1-20% Quality:
0.5% more Damage with Hits and Ailments for each remaining Chain towardsPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.

Acquisition
Drop restricted
Drop level: 12
This item is a transfigured gem. It can be obtained through the use of the Divine Font in the Lord's Labyrinth.Vendor Offer
1x Scroll FragmentMetadata
Item class: Skill Gem

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

It is a transfigured version of ArcArcSpell, Chaining, Lightning
Level: (1-20)
Cost: (8-23) Mana
Cast Time: 0.70 sec
Critical Strike Chance: 6.00%
Effectiveness of Added Damage: 120%Requires Level 12An 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 (6-198) to (32-1122) Lightning Damage
Chains +(4-7) Times
15% more Damage with Hits and Ailments for each remaining Chain

Additional Effects From 1-20% Quality:
Chains +(0.05-1) TimesPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket..

Skill functions and interactions

Unlike the original skill, this transfigured version's chaining behaviour allows it to chain between two enemies and allows secondary chains to hit enemies that were hit by the main arc. It also has lower base damage and damage effectiveness but has a stronger multiplier for remaining chains.

Gem level progression

Level			Mana Cost	Exp.	Total Exp.
1	12	33	8	0	0
2	15	39	9	15249	15249
3	19	48	10	41517	56766
4	23	56	11	81983	138749
5	27	64	12	147968	286717
6	31	73	13	250557	537274
7	35	81	14	405086	942360
8	38	88	15	447718	1390078
9	41	94	16	615318	2005396
10	44	100	16	834639	2840035
11	47	106	17	1570760	4410795
12	50	113	18	1633987	6044782
13	53	119	19	2151030	8195812
14	56	125	19	2812189	11008001
15	59	132	20	5099360	16107361
16	62	138	21	9400731	25508092
17	64	142	21	15273366	40781458
18	66	146	22	26286582	67068040
19	68	151	22	62890590	129958630
20	70	155	23	212046017	342004647
21	72	159	24	N/A	N/A
22	74	N/A	24	N/A	N/A
23	76	N/A	25	N/A	N/A
24	78	N/A	25	N/A	N/A
25	80	N/A	26	N/A	N/A
26	82	N/A	26	N/A	N/A
27	84	N/A	27	N/A	N/A
28	86	N/A	27	N/A	N/A
29	88	N/A	28	N/A	N/A
30	90	N/A	28	N/A	N/A
31	91	N/A	28	N/A	N/A
32	92	N/A	29	N/A	N/A
33	93	N/A	29	N/A	N/A
34	94	N/A	29	N/A	N/A
35	95	N/A	29	N/A	N/A
36	96	N/A	30	N/A	N/A
37	97	N/A	30	N/A	N/A
38	98	N/A	30	N/A	N/A
39	99	N/A	30	N/A	N/A
40	100	N/A	31	N/A	N/A

Gem quality

Type	Additional Effects per 1-20% Quality	Weight
Superior	Chains +(0.05-1) Times	1

Item acquisition

Arc of Oscillating has restrictions on where or how it can drop. This item is a transfigured gem. It can be obtained through the use of the Divine Font in the Lord's Labyrinth.

Recipes

Arc of Oscillating can be created from the following recipes:

Amount	Part	Description	Meta
4	The Blessing of MooshThe Blessing of Moosh4Level 21 Transfigured Gem CorruptedWhile the Labyrinth traps have claimed countless adventurers, they were not designed with felines in mind.	Random corrupted level 21 transfigured gem	A
8	The HookThe Hook8Level 21 Transfigured Gem Quality: +23% CorruptedEvery obsession began with a single, innocent taste.	Random corrupted level 21 transfigured gem with 23% quality	A
3	Doryani's EpiphanyDoryani's Epiphany3Level 21 Transfigured Gem Quality: +20% Corrupted"Virtue gems have facets beyond those that can be seen by the mortal eye. Let us look deeper..."	Random corrupted level 21 transfigured gem with 20% quality	A
8	Dying AnguishDying Anguish8Level 19 Transfigured Gem 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.	level 19 transfigured gem with 19% quality	A
1	The VoidThe Void1Reach into the Void and claim your prize.	Random divination card set exchange	A

Related helmet enchantments

The following helmet enchantments affect Arc.

Note that helmet enchantments are no longer obtainable since version 3.23.0 and can only be obtained in permanent leagues as already enchanted items from before this patch.

Name		Labyrinth	Stats	Spawn Weighting
Enchantment Arc Damage 1	66	Merciless Labyrinth	25% increased Arc Damage	helmet 100
Enchantment Arc Damage 2	75	Eternal Labyrinth	40% increased Arc Damage	helmet 75
Enchantment Arc Damage Per Chain 1	66	Merciless Labyrinth	Arc deals 8% increased Damage for each time it has Chained	helmet 100
Enchantment Arc Damage Per Chain 2	75	Eternal Labyrinth	Arc deals 12% increased Damage for each time it has Chained	helmet 75
EnchantmentArcNumOfAdditionalProjectilesInChain1	66	Merciless Labyrinth	Arc Chains an additional time	helmet 0
Enchantment Arc Num Of Additional Projectiles In Chain 1	75	Eternal Labyrinth	Arc Chains an additional time	helmet 75
Enchantment Arc Shock Chance 1	66	Merciless Labyrinth	Arc has +20% chance to Shock	helmet 100
Enchantment Arc Shock Chance 2	75	Eternal Labyrinth	Arc has +30% chance to Shock	helmet 75

Alternate skill effects

Arc of Oscillating has the following alternate skill effects:

Item	Effect(s)
Arcane Barrage EffectArcane Barrage EffectSkill Gem EffectYour Barrage becomes an Arcane Effect.	Your Barrage becomes an Arcane Effect.
Arcane Contagion EffectArcane Contagion EffectSkill Gem EffectYour Contagion becomes a blue arcane effect.	Your Contagion becomes a blue arcane effect.
Arcane Essence Drain EffectArcane Essence Drain EffectSkill Gem EffectYour Essence Drain becomes a blue arcane effect.	Your Essence Drain becomes a blue arcane effect.
Arcane Frenzy EffectArcane Frenzy EffectSkill Gem EffectYour Frenzy becomes an Arcane Effect.	Your Frenzy becomes an Arcane Effect.
Arcane Raise Spectre SkinArcane Raise Spectre SkinSkill Gem EffectYour Raise Spectre becomes an Arcane Effect.	Your Raise Spectre becomes an Arcane Effect.
Arcane Storm Call EffectArcane Storm Call EffectSkill Gem EffectYour Storm Call becomes an arcane effect.	Your Storm Call becomes an arcane effect.
Arcane Tome Totem SkinArcane Tome Totem SkinSkill Gem EffectYour Spell or Ballista totem becomes an Arcane Tome.	Your Spell or Ballista totem becomes an Arcane Tome.
Arcane Wither EffectArcane Wither EffectSkill Gem EffectYour Wither becomes a blue arcane effect.	Your Wither becomes a blue arcane effect.
Archon Aura EffectArchon Aura EffectSkill Gem EffectYour aura effect becomes the archon effect.	Your aura effect becomes the archon effect.
Arctic Freezing Pulse EffectArctic Freezing Pulse EffectSkill Gem EffectYour Freezing Pulse becomes an Arctic Effect.	Your Freezing Pulse becomes an Arctic Effect.
Arctic Glacial Cascade EffectArctic Glacial Cascade EffectSkill Gem EffectYour Glacial Cacade becomes an arctic effect.	Your Glacial Cacade becomes an arctic effect.
Arctic Ice Golem SkinArctic Ice Golem SkinSkill Gem EffectYour Summoned Ice Golem becomes imbued with arctic energy.	Your Summoned Ice Golem becomes imbued with arctic energy.
Arctic Ice Nova EffectArctic Ice Nova EffectSkill Gem EffectYour Ice Nova becomes a swirling ring of arctic wind.	Your Ice Nova becomes a swirling ring of arctic wind.
Arctic Skull Aura EffectArctic Skull Aura EffectSkill Gem EffectYour aura effect becomes a circling, freezing skull.	Your aura effect becomes a circling, freezing skull.
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.
Demonic Arctic Ballista Totem SkinDemonic Arctic Ballista Totem SkinSkill Gem EffectReplaces the default skin on your ballista totems with a Demonic Arctic version.	Replaces the default skin on your ballista totems with a Demonic Arctic version.
Jade Arctic ArmourFile:Jade Arctic Armour inventory icon.pngJade Arctic ArmourSkill Gem EffectYour Arctic Armour becomes a Jade Effect.File:Jade Arctic Armour inventory icon.png	Your Arctic Armour becomes a Jade Effect.
Purple ArcPurple ArcSkill Gem EffectYour Arc becomes a Purple Effect.	Your Arc becomes a Purple Effect.
Radiant Arc EffectRadiant Arc EffectSkill Gem EffectYour Arc becomes a Radiant Effect.	Your Arc becomes a Radiant Effect.
Stormcloud Arctic Armour EffectStormcloud Arctic Armour EffectSkill Gem EffectYour Arctic Armour becomes a stormcloud that showers ice on you.	Your Arctic Armour becomes a stormcloud that showers ice on you.
Stygian Mirage ArcherStygian Mirage ArcherSkill Gem EffectYour Mirage Archer becomes a Stygian Effect.	Your Mirage Archer becomes a Stygian Effect.
Suffering Mirage ArcherSuffering Mirage ArcherSkill Gem EffectYour Mirage Archer becomes a Suffering Effect.	Your Mirage Archer becomes a Suffering Effect.
Void Emperor Arcane Cloak EffectVoid Emperor Arcane Cloak EffectSkill Gem EffectYour Arcane Cloak becomes a Void Emperor Effect.	Your Arcane Cloak becomes a Void Emperor Effect.

Version history

Version	Changes
3.23.0	Added to the game. Renamed from Arc of Branching to Arc of Surging prior to release. [Undocumented This change was not documented by any official sources. It was discovered through player testing or datamining.]