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Arc Beam

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Arc Beam is the level 21 Storm tree skill for the Embermage in Torchlight II.

An Embermage uses Arc Beam.


You pierce your foes with a channeled beam of energy from you weapons. Destroyed enemies split the beam and strike nearby targets as a secondary effect.

Skill ProgressionEdit

Rank 123456789101112131415
Mana Cost / Sec 17 18 20 21 23 25 29 33 40 46 51 58 66 74 81

% of weapon DPS

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

Split beam %

of weapon DPS

40 42 44 46 48 50 52 54 56 58 60 62 64 66
Required Level 21 2 3 4 5 6 7 8 9 10 11 12 13 14 15
  • Electric damage scales with rank and character level.
  • +5 knockback.
  • Explosion on enemy death.
  • Split beams always deal 40% of weapon damage.
  • Requires a staff or wand.

Tier BonusesEdit

Tier 1

  • The beam can split up to three times.

Tier 2

  • The beam can split up to four times.

Tier 3

  • The beam can split up to five times.


  • Slow enemies can be held off indefinitely with Arc Beam, but faster ones will reach the caster.


  • Arc Beam's range is very short and it forces you to stand still and channel for a moment.
  • Arc Beam strikes it's target 7 times a second[1]

Skills that directly improve this skill:

  1. Post on Runic's forum[1]

Torchlight II skills


Hunter: EviscerateHowlRazeWolfstrikeBattle RageRuptureRavage
Hunter Passives: Blood HungerExecutionerRampage
Tundra: Frost BreathStormclawStorm HatchetNorthern RageIce ShieldPermafrostGlacial Shatter
Tundra Passives: Cold Steel MasteryShatter StormRage Retaliation
Shadow: Shadow BurstWolf ShadeShadowbindSavage RushChain SnareBattle StandardWolfpack
Shadow Passives: Frenzy MasteryShred ArmorRed Wolf


Inferno: Magma SpearMagma MaceFirebombsBlazing PillarInfernal CollapseImmolation AuraFirestorm
Inferno Passives: Charge MasteryElemental AttunementFire Brand
Frost: Icy BlastHailstormFrost PhaseElemental BoonFrost WaveIce PrisonAstral Ally
Frost Passives: Staff MasteryFrozen FateIce Brand
Storm: Prismatic BoltShocking BurstThunder LocusArc BeamDeath's BountyShockboltsShocking Orb
Storm Passives: Prismatic RiftWand ChaosLightning Brand


Blitz: Flame HammerSeismic SlamEmber HammerOnslaughtEmber ReachStorm BurstEmberquake
Blitz Passives: Heavy LiftingSuperchargeCoup-de-Grace
Construction: Healing BotBlast CannonSpider MinesGun BotShock GrenadeFusiladeSledgebot
Construction Passives: BulwarkFire and SparkCharge Domination
Aegis: Shield BashForcefieldOverloadDynamo FieldTremorFire BashImmobilization Copter
Aegis Passives: Sword and BoardAegis of FateCharge Reconstitution


Warfare: Rapid FireRune VaultChaos BurstCursed DaggersVortex HexShattering GlaiveVenomous Hail
Warfare Passives: Long Range MasteryShotgonne MasteryAkimbo
Lore: Glaive ThrowTangling ShotGlaive SweepSandstormBramble WallBurning LeapFlaming Glaive
Lore Passives: Dodge MasteryPoison BurstShare the Wealth
Sigil: Blade PactBane BreathShadowshotRepulsion HexStone PactShadowmantleShadowling Brute
Sigil Passives: Master of the ElementsShadowling AmmoDeath Ritual

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