Arc of Surging

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ArcArc of SurgingArc of OscillatingVaal Arc
Arc of SurgingSpell, Lightning
Level: (1-20)
Cost: (8-23) Mana
Cast Time: 0.70 sec
Critical Strike Chance: 6.00%
Effectiveness of Added Damage: 230%
Requires Level 12An arc of lightning reaches from the caster to a targeted enemy and splits to simultaneously hit several other enemies.Deals (11-381) to (62-2159) Lightning Damage
Beam Splits towards (4-7) additional targets
Modifiers to the number of times to Chain instead apply
to the number of targets Beam Splits towards

Additional Effects From 1-20% Quality:
Beam Splits towards (0.1-2) additional targets
Place 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 Fragment
Metadata
Item class: Skill Gem

Arc of Surging is a lightning spell that creates a pulse of electricity that splits towards nearby targets after hitting a target.

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

Changes from default version

Unlike the original skill, this transfigured version does not chain but instead splits towards multiple nearby targets after hitting an initial target. It also has higher base damage and damage effectiveness but loses the multiplier for remaining chains.

Skill functions and interactions

Gem level progression

LevelRequired LevelRequired IntelligenceMana
Cost
Lightning
Damage
# Split targetsExp.Total Exp.
11233811 to 62400
21539914 to 8041524915249
319481019 to 10844151756766
423561125 to 144481983138749
527641233 to 1884147968286717
631731343 to 2445250557537274
735811455 to 3125405086942360
838881566 to 37454477181390078
941941679 to 44756153182005396
10441001694 to 53158346392840035
114710617111 to 630615707604410795
125011318132 to 745616339876044782
135311919155 to 879621510308195812
145612519183 to 10356281218911008001
155913220214 to 12156509936016107361
166213821251 to 14257940073125508092
176414221279 to 158271527336640781458
186614622310 to 175672628658267068040
196815122344 to 1948762890590129958630
207015523381 to 21597212046017342004647
217215924422 to 23918N/AN/A
2274N/A24467 to 26478N/AN/A
2376N/A25517 to 29288N/AN/A
2478N/A25571 to 32388N/AN/A
2580N/A26631 to 35788N/AN/A
2682N/A26698 to 39539N/AN/A
2784N/A27770 to 43649N/AN/A
2886N/A27850 to 48169N/AN/A
2988N/A28938 to 53139N/AN/A
3090N/A281034 to 58599N/AN/A
3191N/A281085 to 615110N/AN/A
3292N/A291140 to 645710N/AN/A
3393N/A291196 to 677810N/AN/A
3494N/A291256 to 711510N/AN/A
3595N/A291318 to 746710N/AN/A
3696N/A301383 to 783611N/AN/A
3797N/A301451 to 822311N/AN/A
3898N/A301522 to 862711N/AN/A
3999N/A301597 to 905111N/AN/A
40100N/A311676 to 949511N/AN/A

Item acquisition

Arc of Surging 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 Surging can be created from the following recipes:

AmountPartDescriptionMeta
4The Blessing of MooshThe Blessing of Moosh4Level 21 Transfigured Gem
Corrupted
While the Labyrinth traps have claimed countless adventurers, they were not designed with felines in mind.
Random corrupted level 21 transfigured gemA
8The HookThe Hook8Level 21 Transfigured Gem
Quality: +23%
Corrupted
Every obsession began with a single, innocent taste.
Random corrupted level 21 transfigured gem with 23% qualityA
3Doryani'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% qualityA
8Dying 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% qualityA
1The VoidThe Void1Reach into the Void and claim your prize.Random divination card set exchangeA

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.

NameFor generated item/monster modifiers the minimum item/monster level respectively. Some generation types may not require this condition to be met, however item level restrictions may be raised to 80% of this value.LabyrinthStatsSpawn Weighting
Enchantment Arc Damage 166Merciless Labyrinth25% increased Arc Damagehelmet 100
Enchantment Arc Damage 275Eternal Labyrinth40% increased Arc Damagehelmet 75
Enchantment Arc Damage Per Chain 166Merciless LabyrinthArc deals 8% increased Damage for each time it has Chainedhelmet 100
Enchantment Arc Damage Per Chain 275Eternal LabyrinthArc deals 12% increased Damage for each time it has Chainedhelmet 75
EnchantmentArcNumOfAdditionalProjectilesInChain166Merciless LabyrinthArc Chains an additional timehelmet 0
Enchantment Arc Num Of Additional Projectiles In Chain 175Eternal LabyrinthArc Chains an additional timehelmet 75
Enchantment Arc Shock Chance 166Merciless LabyrinthArc has +20% chance to Shockhelmet 100
Enchantment Arc Shock Chance 275Eternal LabyrinthArc has +30% chance to Shockhelmet 75

Alternate skill effects

Arc of Surging has the following alternate skill effects:

ItemEffect(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.
Radiant Arc EffectRadiant Arc EffectSkill Gem EffectYour Arc becomes a Radiant Effect.Your Arc becomes a Radiant Effect.

Version history

Version Changes
3.24.0
  • Fixed a bug where the split beams from Arc of Surging could target the same enemy.
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.]

References