Arclight

early game support

supportsp_generationteam_buffelectricvanguard

Arclight earns an S rating because her short-cooldown Combo Skill feeds the squad a steady stream of SP, and she can even retrigger it with her Ultimate for rapid double casts. The catch is that she needs external Electrification to keep that loop running, so she only truly shines in Electric-focused lineups built around another inflictor.

The early game build keeps Arclight functional as a support while you are still gearing up. Thermite Cutter is carried over from the endgame plan since it is obtainable from the New Horizons weapon selector and gives the whole team an attack boost regardless of your account's progress. Mordvolt Insulation fills the armour, gloves, and both kit slots, and its large Intellect bonus is what makes it worthwhile — Intellect is the stat that powers her Wildland Trekker Electric DMG amp, so the set gives the squad a noticeably stronger buff while remaining cheap to assemble and replacing it later is straightforward.

Insights

Core Mechanics

Peal of Thunder is her Combo Skill: a low-cooldown blink-and-slash that restores SP, fired whenever an enemy gains Electrification or has theirs consumed.
Exploding Blitz dashes forward, applies Electric Infliction along the path, then converts an existing Infliction into forced Electrification.
Wildland Trekker only pays out on every third consumption of Electrification through Tempestuous Arc, so her Electric DMG amp is a side bonus rather than her main function.

Scaling

Early on she is mostly an SP battery — her personal damage stays modest no matter how much you invest in her.
Her team buff scales off Intellect, so every point of Intellect from weapons and gear translates into more Electric DMG for the whole squad.
She is heavily team dependent: without a second Electric Infliction source only her Ultimate can start the Combo Skill loop.

Team Role

Arclight slots into squads as a support-style Vanguard whose job is keeping everyone else's skills available. Her Combo Skill comes off cooldown quickly and hands SP back to the team, so she thrives in rotations where allies want to spam Battle Skills and Ultimates. Because her only personal source of Electric Infliction sits on her Ultimate, she needs at least one other operator who can apply Infliction or Electrification to keep Peal of Thunder firing — otherwise her value collapses. Position her in Electric-centric compositions where a teammate opens with Infliction, then layer her Combo Skill and Ultimate around that window to chain multiple casts. She is also a flexible enabler for characters that care about the Infliction-versus-Electrification timing, since her Ultimate applies Infliction first and converts it a beat later, letting partners consume either state.

Weapon

thermite_cutterBest

6★ Sword

Weapon Stat Priority

flowattack_boostwill_boost

Gear

intellect_boost

Pieces

armor

gloves

core 1

core 2

Stat Priority

1intellect_boost2attack_boost

Explanation

Thermite Cutter stays the recommended weapon because its team-wide attack buff matters at every stage of progression.

Mordvolt Insulation is the early pick because it is accessible and piles on Intellect, letting Arclight deliver a meaningful Wildland Trekker buff before better gear is available.

You do not need to chase specific substats at this stage; simply having the set online is enough to keep her support value up.

This setup is transitional — swap to the Frontiers configuration once you can farm the required pieces.

Notes

Mordvolt Insulation is picked here for its large Intellect boost, which is exactly what her Talent scales on.
Thermite Cutter is still the weapon of choice and can be grabbed early from the New Horizons weapon selector.
The set's Arts DMG bonus while above 80% HP is a minor extra benefit for the early game.