Arc
Spell, Chaining, Lightning
Level: 1–20
Mana Cost: 8–23
Cast Time: 0.7 sec
Critical Strike Chance: 5%
Effectiveness of Added Damage: 80%
Requires Level 12
An 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 (6–133) 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 Chain


Additional Effects From Quality:
(0–10)% chance to Shock enemies
Place into an item socket of the right colour to gain this skill. Right click to remove from a socket.

Arc

DropLevel 12
BaseType Arc
Class Active Skill Gems
VaalVaal Arc
CostOrb of Transmutation x 1
TargetTypesGround, Enemy
TypeSpell, Hit, SkillCanTrap, SkillCanTotem, SkillCanMine, Chaining, SpellCanRepeat, Triggerable, LightningSkill, CanRapidFire
IsActiveSkill1
DefaultTxtbeam_skill_stat_descriptions
GrantedEffectsID1782
Quality Gem /4

Quality Gem /4

TypeStatsWeight
Superior (0–10)% chance to Shock enemies50
Anomalous (0–20)% increased Chaining range100
Divergent (0–10)% increased Damage for each time this Skill has Chained50
Phantasmal (0–20)% reduced Enemy Stun Threshold20
Quest /4

Quest /4

ActQuest CompleteNPCCharacter
1The Siren's CadenceQuest RewardWitch
1The Siren's CadenceNessaWitch Templar Shadow
3A Fixture of FateSiosa (Level 1)All Classes
6Fallen from GraceLilly Roth (Level 1)All Classes
Implicit
10% chance to Shock enemies
15% more Damage for each remaining Chain
arc_chain_distance [35]
arc_enhanced_behaviour [1]
disable_visual_hit_effect [1]
Level Effect /40

Level Effect /40

LevelRequires LevelIntelligenceMana CostDeals 6 to 33 Lightning DamageChains +4 Times10% increased Effect of Lightning AilmentsExperience
1123386, 3341015,249
2153997, 4141141,517
31948109, 5441281,983
423561112, 70413147,968
527641216, 89414250,557
631731320, 112515405,086
735811425, 139516447,718
838881529, 163517615,318
941941634, 191518834,639
10441001639, 2235191,570,760
11471061746, 2586201,633,987
12501131853, 2996212,151,030
13531191961, 3466222,812,189
14561251970, 3996235,099,360
15591322081, 4586249,400,731
16621382193, 52672515,273,366
176414221102, 57772626,286,582
186614622111, 63172762,890,590
196815122122, 690728212,046,017
207015523133, 754729
217224145, 824830
227424159, 900831
237625173, 982832
247825189, 1070833
258026206, 1167834
268226224, 1271935
278427244, 1384936
288627266, 1506937
298828289, 1639938
309028314, 1782939
319128328, 18581039
329229342, 19371040
339329356, 20191040
349429371, 21051041
359529387, 21931041
369630403, 22861142
379730420, 23821142
389830438, 24821143
399930456, 25861143
4010031475, 26941144
Labyrinth Enchantment helmet /31

Labyrinth Enchantment helmet /31

LevelModDrop Rate
The Merciless Labyrinth25% increased Ancestral Warchief Totem Damagehelmet(3.57%)
The Eternal Labyrinth40% increased Ancestral Warchief Totem Damagehelmet(3.57%)
The Merciless Labyrinth25% increased Arc Damagehelmet(3.57%)
The Eternal Labyrinth40% increased Arc Damagehelmet(2.68%)
The Merciless Labyrinth25% increased Creeping Frost Damagehelmet(3.57%)
The Eternal Labyrinth40% increased Creeping Frost Damagehelmet(2.68%)
The Merciless LabyrinthArc Chains an additional time
The Eternal LabyrinthArc Chains an additional timehelmet(2.68%)
The Merciless LabyrinthArc has +20% chance to Shockhelmet(3.57%)
The Eternal LabyrinthArc has +30% chance to Shockhelmet(2.68%)
The Merciless LabyrinthArc deals 8% increased Damage for each time it has Chainedhelmet(3.57%)
The Eternal LabyrinthArc deals 12% increased Damage for each time it has Chainedhelmet(2.68%)
The Merciless LabyrinthArcane Cloak Spends an additional 10% of current Manahelmet(3.57%)
The Eternal LabyrinthArcane Cloak Spends an additional 15% of current Manahelmet(3.57%)
The Eternal LabyrinthArcane Cloak grants Life Regeneration equal to 15% of Mana Spent per Secondhelmet(3.57%)
The Merciless Labyrinth16% increased Ancestral Warchief Totem Area of Effecthelmet(3.57%)
The Eternal Labyrinth24% increased Ancestral Warchief Totem Area of Effecthelmet(3.57%)
The Merciless LabyrinthAncestral Warchief Totem grants 20% increased Melee Damage while Activehelmet(3.57%)
The Eternal LabyrinthAncestral Warchief Totem grants 30% increased Melee Damage while Activehelmet(3.57%)
The Merciless Labyrinth24% increased Arctic Armour Buff Effecthelmet(3.57%)
The Eternal Labyrinth36% increased Arctic Armour Buff Effecthelmet(3.57%)
The Merciless LabyrinthArctic Armour has 20% reduced Mana Reservationhelmet(3.57%)
The Eternal LabyrinthArctic Armour has 30% reduced Mana Reservationhelmet(3.57%)
The Merciless Labyrinth24% increased Creeping Frost Durationhelmet(3.57%)
The Eternal Labyrinth36% increased Creeping Frost Durationhelmet(2.68%)
The Merciless Labyrinth16% increased Creeping Frost Area of Effecthelmet(3.57%)
The Eternal Labyrinth24% increased Creeping Frost Area of Effecthelmet(2.68%)
The Eternal LabyrinthCreeping Frost's Chilling Area has 38% increased Movement Speedhelmet(2.68%)
The Merciless LabyrinthArcanist Brand has 8% increased Cast Speedhelmet(3.57%)
The Eternal LabyrinthArcanist Brand has 12% increased Cast Speedhelmet(3.57%)
The Eternal LabyrinthSpells Triggered by Arcanist Brand Unnerve enemies on Hit for 4 secondshelmet(3.57%)
Microtransactions /4

Microtransactions /4

IconName
Purple Arc
Stack Size: 1 / 20
Your Arc becomes a Purple Effect.
Automaton Arc Effect
Your Arc becomes an Automaton Effect.
Radiant Arc Effect
Your Arc becomes a Radiant Effect.
Celestial Arc Effect
Your Arc becomes a Celestial Effect.
Supported By /76

Supported By /76

  • Active Type: Spell, Hit, SkillCanTrap, SkillCanTotem, SkillCanMine, Chaining, SpellCanRepeat, Triggerable, LightningSkill, CanRapidFire
  • Support GemActiveType
    Added Fire Damage SupportHit, Attack
    Added Cold Damage SupportAttack, Hit
    Added Lightning Damage SupportAttack, Hit
    Increased Critical Strikes SupportHit, Attack
    Increased Critical Damage SupportHit, Attack
    Knockback SupportHit, Attack
    Life Leech SupportHit, Attack
    Added Chaos Damage SupportHit, Attack
    Stun SupportHit, Attack
    Trap SupportSkillCanTrap
    Item Rarity SupportHit, Attack, DamageOverTime
    Faster Casting SupportSpell
    Cold to Fire SupportHit, Attack
    Combustion SupportHit, Attack
    Elemental Proliferation SupportHit, Attack, CauseElementalStatus
    Culling Strike SupportHit, Attack
    Iron Will SupportHit, Type59, Type66
    Spell Totem SupportSpell, SkillCanTotem, AND
    Blastchain Mine SupportSkillCanMine
    Chance to Flee SupportAttack, Hit
    Blind SupportHit, Attack
    Fire Penetration SupportHit, Attack
    Cold Penetration SupportHit, Attack
    Lightning Penetration SupportHit, Attack
    Elemental Penetration SupportHit, Attack
    Chain SupportChaining, Projectile, Type54, Type56, Type97
    Spell Echo SupportSpellCanRepeat
    Power Charge On Critical SupportHit, Attack
    Burning Damage SupportHit, Attack, CausesBurning
    Cast on Death SupportSpell, Triggerable, AND
    Cast when Damage Taken SupportSpell, Triggerable, AND
    Cast when Stunned SupportSpell, Triggerable, AND
    Block Chance Reduction SupportHit, Attack
    Physical to Lightning SupportHit, Attack
    Ice Bite SupportHit, Attack
    Hypothermia SupportHit, Attack, DamageOverTime
    Innervate SupportHit, Attack
    Poison SupportHit, Attack
    Void Manipulation SupportHit, Attack, DamageOverTime
    Controlled Destruction SupportHit, Attack, Type59
    Swift Affliction SupportDuration, Type55, Hit, Attack
    Elemental Focus SupportHit, Attack, CausesBurning, NonHitChill
    Ignite Proliferation SupportHit, Attack
    Lesser Poison SupportHit, Attack
    Deadly Ailments SupportHit, Attack
    Decay SupportHit, Attack
    Efficacy SupportHit, Attack, Type59, Duration, Type55, DamageOverTime
    Vile Toxins SupportHit, Attack
    Immolate SupportHit, Attack
    Unbound Ailments SupportHit, Attack, CauseElementalStatus
    Brutality SupportHit, Attack
    Onslaught SupportHit, Attack
    Summon Phantasm SupportAttack, Hit, CreatesMinion
    Bonechill SupportAttack, Hit, NonHitChill, ChillingArea
    Energy Leech SupportHit, Attack
    Unleash SupportCanRapidFire
    High-Impact Mine SupportSkillCanMine
    Awakened Added Fire Damage SupportHit, Attack
    Awakened Brutality SupportHit, Attack
    Awakened Burning Damage SupportHit, Attack, CausesBurning
    Awakened Fire Penetration SupportHit, Attack
    Awakened Added Cold Damage SupportAttack, Hit
    Awakened Chain SupportChaining, Projectile, Type54, Type56, Type97
    Awakened Cold Penetration SupportHit, Attack
    Awakened Deadly Ailments SupportHit, Attack
    Awakened Swift Affliction SupportDuration, Type55, Hit, Attack
    Awakened Void Manipulation SupportHit, Attack, DamageOverTime
    Awakened Added Chaos Damage SupportHit, Attack
    Awakened Added Lightning Damage SupportAttack, Hit
    Awakened Controlled Destruction SupportHit, Attack, Type59
    Awakened Elemental Focus SupportHit, Attack, CausesBurning, NonHitChill
    Awakened Lightning Penetration SupportHit, Attack
    Awakened Spell Echo SupportSpellCanRepeat
    Awakened Unbound Ailments SupportHit, Attack, CauseElementalStatus
    Awakened Unleash SupportCanRapidFire
    Archmage SupportHit, Spell, AND
    Arc Monster /32

    Arc Monster /32

    NameModifiersSpectre
    Rukuku, the Pagan Godmonster_dropped_item_quantity_+% [4000]
    monster_dropped_item_rarity_+% [1000]
    Y
    Crackling Essencedamage_taken_+%_from_spike_traps_final [-100]
    damage_taken_+%_from_arrow_traps_final [-100]
    immune_to_labyrinth_degen_effect [1]
    immune_to_lava_damage [1]
    Y
    Blackguard ArcmageCasts Arc
    Casts Lightning Thorns
    Blocks Spells
    base_block_%_damage_taken [10]
    Y
    Elder-Blessed ArcmageCasts Arc
    Casts Lightning Thorns
    visual_attached_elder_tentacles [1]
    Blocks Spells
    base_block_%_damage_taken [10]
    Y
    Pietymonster_slain_experience_+% [250]
    monster_dropped_item_quantity_+% [1400]
    monster_dropped_item_rarity_+% [1500]
    unique_boss_curse_effect_on_self_+%_final [-33]
    monster_additional_quantity_of_dropped_items_in_merciless_+% [2572]
    monster_additional_rarity_of_dropped_items_in_merciless_+% [1800]
    monster_additional_quantity_of_dropped_items_in_cruel_+% [1286]
    monster_additional_rarity_of_dropped_items_in_cruel_+% [900]
    cannot_be_taunted_when_taunted_ms [0]
    energy_shield_recharge_rate_+% [-65]
    cannot_be_stunned_while_stunned [1]
    cannot_be_stunned_for_ms_after_stun_finished [2000]
    Y
    Pietyenergy_shield_recharge_rate_+% [-65]
    cannot_be_stunned_while_stunned [1]
    cannot_be_stunned_for_ms_after_stun_finished [2000]
    Y
    Galvanic RibbonChannels Lightning
    Y
    TotemY
    Herald of ThunderCasts Shock Nova
    Casts Conductivity
    monster_slain_experience_+% [100]
    monster_dropped_item_quantity_+% [1500]
    monster_dropped_item_rarity_+% [2000]
    number_of_additional_curses_allowed [1]
    unique_boss_curse_effect_on_self_+%_final [-33]
    cannot_be_taunted_when_taunted_ms [0]
    cannot_be_stunned_while_stunned [1]
    cannot_be_stunned_for_ms_after_stun_finished [2000]
    Y
    The Wicked Onemonster_slain_experience_+% [100]
    monster_dropped_item_quantity_+% [1500]
    monster_dropped_item_rarity_+% [2000]
    unique_boss_curse_effect_on_self_+%_final [-33]
    cannot_be_taunted_when_taunted_ms [0]
    energy_shield_recharge_rate_+% [-65]
    cannot_be_stunned_while_stunned [1]
    cannot_be_stunned_for_ms_after_stun_finished [2000]
    Y
    Piety the Empyreanmonster_slain_experience_+% [100]
    monster_dropped_item_quantity_+% [1500]
    monster_dropped_item_rarity_+% [2000]
    unique_boss_curse_effect_on_self_+%_final [-33]
    cannot_be_taunted_when_taunted_ms [0]
    energy_shield_recharge_rate_+% [-65]
    cannot_be_stunned_while_stunned [1]
    cannot_be_stunned_for_ms_after_stun_finished [2000]
    Y
    Piety the Empyreanmonster_slain_experience_+% [100]
    monster_dropped_item_quantity_+% [1500]
    monster_dropped_item_rarity_+% [2000]
    unique_boss_curse_effect_on_self_+%_final [-33]
    monster_additional_quantity_of_dropped_items_in_merciless_+% [1715]
    monster_additional_rarity_of_dropped_items_in_merciless_+% [600]
    monster_additional_quantity_of_dropped_items_in_cruel_+% [858]
    monster_additional_rarity_of_dropped_items_in_cruel_+% [300]
    cannot_be_taunted_when_taunted_ms [0]
    energy_shield_recharge_rate_+% [-65]
    cannot_be_stunned_while_stunned [1]
    cannot_be_stunned_for_ms_after_stun_finished [2000]
    Y
    Minara Aneminamonster_base_type_attack_cast_speed_+%_and_damage_-%_final [33]
    monster_dropped_item_rarity_+% [500]
    unique_boss_curse_effect_on_self_+%_final [0]
    Blocks Spells
    base_block_%_damage_taken [15]
    Y
    Minara Aneminamonster_base_type_attack_cast_speed_+%_and_damage_-%_final [33]
    monster_dropped_item_rarity_+% [500]
    unique_boss_curse_effect_on_self_+%_final [0]
    monster_no_map_drops [1]
    Blocks Spells
    base_block_%_damage_taken [15]
    Y
    Shrine DaemonY
    The All-seeing Eyemonster_dropped_item_quantity_+% [300]
    monster_dropped_item_rarity_+% [800]
    monster_additional_quantity_of_dropped_items_in_merciless_+% [600]
    monster_additional_rarity_of_dropped_items_in_merciless_+% [600]
    monster_additional_quantity_of_dropped_items_in_cruel_+% [300]
    monster_additional_rarity_of_dropped_items_in_cruel_+% [300]
    monster_no_map_drops [1]
    Y
    The All-seeing Eyemonster_dropped_item_quantity_+% [300]
    monster_dropped_item_rarity_+% [800]
    monster_no_map_drops [1]
    Y
    The All-seeing Eyemonster_dropped_item_quantity_+% [300]
    monster_dropped_item_rarity_+% [800]
    monster_additional_quantity_of_dropped_items_in_merciless_+% [600]
    monster_additional_rarity_of_dropped_items_in_merciless_+% [600]
    monster_additional_quantity_of_dropped_items_in_cruel_+% [300]
    monster_additional_rarity_of_dropped_items_in_cruel_+% [300]
    monster_no_map_drops [1]
    monster_is_invasion_boss [1]
    Y
    Scale of Eshgrant_actor_scale_+%_to_aura_owner_on_death [1]
    grant_attack_speed_+%_to_aura_owner_on_death [5]
    grant_cast_speed_+%_to_aura_owner_on_death [5]
    grant_damage_reduction_%_to_aura_owner_on_death [2]
    soul_is_consumed_on_death [0]
    monster_dropped_item_quantity_+% [700]
    monster_dropped_item_rarity_+% [1000]
    monster_beyond_portal_chance_+%_final [-66]
    Y
    Scale of Eshmonster_dropped_item_quantity_+% [100]
    monster_dropped_item_rarity_+% [300]
    monster_beyond_portal_chance_+%_final [-66]
    monster_no_map_drops [1]
    Y
    Scale of Eshmonster_dropped_item_quantity_+% [100]
    monster_dropped_item_rarity_+% [300]
    monster_beyond_portal_chance_+%_final [-66]
    Y
    Scale of Eshmonster_no_drops_or_experience [1]
    cannot_be_used_as_minion [1]
    N
    Scale of Eshmonster_dropped_item_quantity_+% [700]
    monster_dropped_item_rarity_+% [1000]
    monster_beyond_portal_chance_+%_final [-66]
    Y
    Tome of ThunderY
    Scale of Eshgrant_actor_scale_+%_to_aura_owner_on_death [1]
    grant_attack_speed_+%_to_aura_owner_on_death [5]
    grant_cast_speed_+%_to_aura_owner_on_death [5]
    grant_damage_reduction_%_to_aura_owner_on_death [2]
    soul_is_consumed_on_death [0]
    monster_dropped_item_quantity_+% [700]
    monster_dropped_item_rarity_+% [1000]
    cannot_be_used_as_minion [1]
    monster_beyond_portal_chance_+%_final [-66]
    N
    Scale of Eshmonster_dropped_item_quantity_+% [100]
    monster_dropped_item_rarity_+% [300]
    cannot_be_used_as_minion [1]
    monster_beyond_portal_chance_+%_final [-66]
    monster_no_map_drops [1]
    N
    Refinery Constructdisplay_monster_mod_nemesis_test [0]
    Y
    Mine Constructdisplay_monster_mod_nemesis_test [0]
    monster_slain_experience_+% [0]
    monster_dropped_item_quantity_+% [0]
    monster_dropped_item_rarity_+% [300]
    monster_no_map_drops [1]
    Y
    Syndicate Conduitmonster_do_not_fracture [1]
    Y
    Arc Towerblight_tower_damage_+%_final_vs_lightning_monster [-99]
    Y
    Blighted ArcmageCasts Arc
    Casts Lightning Thorns
    Blocks Spells
    base_block_%_damage_taken [10]
    monster_slain_experience_+% [0]
    monster_dropped_item_quantity_+% [0]
    monster_dropped_item_rarity_+% [0]
    monster_no_map_drops [1]
    Y
    Eden, BlightspeakerCasts Arc
    Casts Lightning Thorns
    Blocks Spells
    base_block_%_damage_taken [10]
    monster_slain_experience_+% [100]
    monster_dropped_item_quantity_+% [1500]
    monster_dropped_item_rarity_+% [2000]
    unique_boss_curse_effect_on_self_+%_final [-33]
    cannot_be_knocked_back [1]
    Y