Arc

Overcharge — Lucky Raspberry + Riskrunner (Arc Hunter)

Self-feeding chain-lightning ad-clear — Riskrunner overcharges off the Arc it sits in while Lucky Raspberry's jolting Arcbolt refunds itself, blanketing the room in Arc with built-in Arc DR

Lucky Raspberry on light.gg

Centerpiece: Lucky Raspberry (Chest Armor) · Subclass: Arcstrider (Arc) · Role: Self-feeding chain-lightning ad-clear — Riskrunner overcharges off the Arc it sits in while Lucky Raspberry's jolting Arcbolt refunds itself, blanketing the room in Arc with built-in Arc DR Sandbox: 9.7.0 · Updated 2026-07-03

Riskrunner wakes up the moment Arc damage touches it, and an Arc room is full of Arc damage. Once it is overcharged it chains lightning between enemies and shrugs off the Arc that fed it. Lucky Raspberry's Arcbolt jolts and chains too, and every jolt hands the grenade back. The SMG keeps the room arced, the room keeps the SMG overcharged, the jolts keep the grenade coming, and you stand in a permanent lightning storm taking reduced Arc damage.

The exotic

Probability Matrix: Arcbolt Grenades have increased chaining capabilities and jolt targets hit. Damaging combatants with jolt or applying jolt to targets grants additional Arcbolt Grenade energy.

Arc Conductor (Riskrunner): "When taking Arc Damage, this weapon becomes more powerful and resists incoming Arc Damage. Kills extend the time in this overcharged state."

Lucky Raspberry turns the Arcbolt into a self-funding jolt-chain: it hits more targets, jolts them, and every jolt or jolt-kill feeds the grenade back, so in a jolt-soaked room the Arcbolt is almost always ready. Its natural partner is Riskrunner, the exotic weapon carried alongside it. Riskrunner is a 900-RPM Arc SMG whose Arc Conductor flips on from any Arc damage — your own jolts and chains included — making it overcharged, resistant to Arc, and chaining lightning between enemies, with kills extending the state. Together the two exotics form a closed loop: the SMG floods the pack with Arc, that Arc keeps Conductor lit and jolts targets, and every jolt refunds the Arcbolt that jolts more.

Loadout

Slot	Pick	Why
Subclass	Arcstrider (Arc)	The jolt/Amplified subclass — every verb here (jolt, Ionic Traces, Amplified) feeds both exotics.
Super	Gathering Storm	Throw-and-embed staff jolts a wide area, so jolt kills refund the Arcbolt and feed Flow State, and it is the boss/heavy burst the neutral kit lacks.
Class ability	Gambler's Dodge	Arms Ascension's jolt and refunds Combination Blow, repositioning you inside the storm.
Movement	Triple Jump	Extra airborne windows to trigger Ascension's air-move jolt on demand.
Melee	Combination Blow	Neutral-game sustain — heal plus dodge refund — that carries the filler between bursts.
Grenade	Arcbolt Grenade	Mandatory; the Lucky Raspberry engine that chains, jolts, and refunds itself off the jolt.
Aspect 1	Ascension	Air-move consumes class ability to jolt nearby targets and amplify allies — a ranged jolt that refunds the Arcbolt and triggers Flow State.
Aspect 2	Flow State	Defeating a jolted target makes you Amplified, greatly increasing reload speed (Riskrunner), dodge regen, and resilience while dodging.
Fragments	Spark of Discharge · Spark of Ions · Spark of Resistance · Spark of Recharge	Two Ionic-Trace sources off the jolt flood, DR while surrounded, and a comeback valve.
Exotic armour	Lucky Raspberry (Chest Armor)	Supercharges the Arcbolt's chaining/jolt and refunds its energy off every jolt applied or jolted kill.
Weapons	Riskrunner (Arc SMG) + Arc Special + boss-DPS Heavy	Riskrunner is the chain engine; an Arc Special keeps surges and Spark of Discharge traces live; a Heavy handles what chains can't chew.

Fragments

Spark of Discharge Arc weapon final blows can create an Ionic Trace
Spark of Ions defeating a jolted target creates an Ionic Trace
Spark of Resistance more resistant while surrounded
Spark of Recharge melee + grenade regen faster while critically wounded

Why it works (the mechanics)

The overcharge is self-sustaining here. Arc Conductor only asks for Arc damage, and this kit floods the room with it — Arcbolt jolts, Riskrunner's own chains, Ascension's air-move, and Gathering Storm all deal Arc. So Conductor stays lit permanently, chaining lightning between enemies while resisting the Arc that keeps it on.
The grenade pays for itself. Probability Matrix refunds Arcbolt energy off applying jolt or damaging jolted combatants, and the room is always jolted. The chaining Arcbolt is therefore up almost constantly, and each throw jolts more targets, which refunds more — a grenade loop with no external input.
Jolt drives the subclass economy. Spark of Ions turns every jolted kill into an Ionic Trace and Spark of Discharge adds a chance on any Arc weapon kill, so the trace stream feeds ability energy. Jolted kills also make you Amplified via Flow State, which greatly increases Riskrunner's reload — more uptime, more chains, more jolt.
You are hard to hurt with Arc. Arc Conductor resists incoming Arc damage, Spark of Resistance adds DR while surrounded, and Amplified layers on more — exactly what you want when the build's whole point is standing inside the pack.
Ascension and the Super refresh the loop from range. Ascension's air-move jolts nearby targets and amplifies allies without spending a grenade, and Gathering Storm blankets a dense pack or boss with jolt, refunding the Arcbolt and re-lighting Conductor after any lull.

Stats & mods

Weapons 200 → Grenade → Health. Lean Gunner/Powerhouse for Riskrunner throughput, then Grenadier/Demolitionist to keep the second engine (Arcbolt) cycling, with Health as the survivability floor on top of Arc Conductor's resist.

Mods:

Boots: SMG Scavenger + Innervation (Arc reserves plus grenade energy off Orbs).
Arms: SMG Loader ×2 — faster reload compounds with Flow State's Amplified reload.
Chest: Arc Resistance / Concussive Dampener — you fight at melee range in the storm.
Class item: Bomber + Time Dilation — grenade energy on dodge, longer buff timers.
Surge: Arc Weapon Surge ×2 — matches the Arc SMG and keeps Spark of Discharge traces relevant.
Anti-Champion: Overload is covered intrinsically by jolt; slot anti-Barrier / anti-Unstoppable mods or bring champion frames for the rest.

Artifact — Encrypted Data Disk

Picks (2/3/2):

Tier 1: Fierce Proxemics · Press the Advantage
Tier 2: Dielectric · Blinding Jolts · Counter Energy
Tier 3: Elemental Orbs: Arc · Tazer Tag

Dielectric turns defeating Arc-debuffed (jolted) targets into Bolt Charge, and rapid jolted kills into an Orb of Power plus a heal — the room is permanently jolted, so this never stops.
Blinding Jolts blinds nearby combatants on any final blow against a jolted target, layering free CC onto every chain kill.
Elemental Orbs: Arc spawns an Arc Elemental Orb on Arc weapon kills that you shoot for a jolting explosion — more AoE jolt and Orb economy off Riskrunner's mowing.
Tazer Tag makes Arc-powered melee hits jolt and deal extra damage, giving the Combination Blow filler its own jolt source.
Fierce Proxemics and Counter Energy top the kit up: finisher kills grant grenade/melee energy, and champion stuns feed your least-charged ability, keeping Gathering Storm and the Arcbolt full.
Press the Advantage grants stability, handling, and reload after a shield break — smoothing Riskrunner between chains.

Where it shines

Add-dense PvE — Nightfalls, Battlegrounds, lost sectors — where the jolt/chain loop blankets whole rooms and the Arcbolt is always up.
Sustained survival content where standing in the pack is the play: Arc Conductor resist + Spark of Resistance + Amplified stack into a real Arc-DR floor.
Champion coverage: Jolt stuns Overload everywhere (Arcbolt, Ascension, Gathering Storm, chains). For Barrier and Unstoppable, lean on the Encrypted Data Disk options that fit your kit (Riposte/Kinetic Rupture stun Unstoppable with a Sword/Kinetic weapon) or bring anti-Barrier / anti-Unstoppable weapon frames and mods.

Verify notes

Lucky Raspberry "Probability Matrix" and Riskrunner "Arc Conductor" quoted verbatim from `docs/encyclopedia/exotics.md` (lines 38 and 294). Riskrunner is a 900-RPM Arc Primary SMG, no intrinsic champion breaker (`data/weapon_facts.json`).
Aspects Ascension + Flow State are Arcstrider (Arc Hunter) aspects, quoted from `docs/encyclopedia/aspects.md`; Ascension amplifies allies and jolts on the air-move, Flow State grants Amplified (faster reload/dodge) on jolted kills. See [[reference_d2builds_aspect_class_gotcha]].
Fragments (Spark of Discharge / Ions / Resistance / Recharge) quoted from `docs/encyclopedia/fragments.md` (lines 72, 82, 85, 86) — Discharge/Ions are the Ionic-Trace sources.
Artifact = Encrypted Data Disk, all seven mods confirmed in-pool at the correct tiers in `docs/encyclopedia/artifacts_structured.md` (T1 Fierce Proxemics/Press the Advantage, T2 Dielectric/Blinding Jolts/Counter Energy, T3 Elemental Orbs: Arc/Tazer Tag) — exactly 2/3/2, unchanged from the original build.
Manifest/tuning flags: Lucky Raspberry's Arcbolt-refund magnitude (energy per jolt) is numeric and unlisted — the near-permanent-grenade claim assumes a jolt-saturated room; verify the refund rate live. Riskrunner's ambient-Arc uptime solo also depends on how readily nearby Arc keeps Conductor lit (its catalyst adds an on-kill trigger — assumed unlocked for smoothest uptime).

Mod selection (masterworked — full allocation)

Piece	Mod · cost	What it does
Helmet (7/10)	Arc Siphon 3e fill	Rapid Arc weapon final blows create an Orb of Power.
	Ashes to Assets 3e fill	Gain bonus Super energy on grenade kills.
	Heavy Ammo Finder 1e fill	Increases the effect of all contributions towards the Heavy ammo meter.
Arms (6/10)	Utility Kickstart 3e fill	When your class ability energy is fully expended, your Armor Charge is consumed and you gain class ability energy for each Armor Charge used.
	Momentum Transfer 2e fill	Causing damage with a grenade reduces your melee cooldown.
	Fastball 1e fill	Increases grenade throw distance.
Chest (5/10)	Arc Resistance 1e	Reduces incoming Arc damage from combatants.
	Arc Resistance 1e	Reduces incoming Arc damage from combatants.
	Concussive Dampener 3e	Reduces incoming area-of-effect damage from combatants.
Legs (3/10)	Innervation 1e	Reduces grenade cooldown each time you pick up an Orb of Power.
	Innervation 1e	Reduces grenade cooldown each time you pick up an Orb of Power.
	Arc Weapon Surge 1e	Your Arc weapons gain a small bonus to damage while you have any Armor Charge. Your Armor Charge now decays over time.
Class Item (5/10)	Bomber 1e	Reduces grenade cooldown when using your class ability.
	Bomber 1e	Reduces grenade cooldown when using your class ability.
	Time Dilation 3e	Your decaying Armor Charge has a longer duration.

All 15 sockets used, 10 energy per masterworked piece; costs from the manifest. Core mods are the build's engine; fill mods are strong defaults — swap freely (chest resists should match the activity's damage types). Flex/loadout-dependent: keeps Spark of Discharge traces relevant. - **Anti-Champion:** Overload is covered intrinsically by jolt; slot anti-Barrier / anti-Unstoppable mods or bring champion frames for the rest.