Arclight

early game sub dps

sub_dps support

Arclight provides solid SP regeneration for the team via her frequent Combo Skill, but she depends on Electrification to trigger it. Since her kit only applies Electrification through her Ultimate, she needs at least one other Electric source in the party. Her Electric DMG buff only activates every third Electrification consumption, which uses SP over time and feels inconsistent for a support role.

This beginner-friendly build uses easy-to-obtain gear to boost Arclight's physical and Combo Skill damage. The Roving MSGR set provides Agility and conditional Physical DMG, while the Thermite Cutter (free from the New Horizons banner) adds a teamwide ATK buff. It's a solid foundation that transitions smoothly into the endgame sub-DPS build.

Insights

Core Mechanics

Her Combo Skill recovers SP and has a short 3-second cooldown, triggering whenever an enemy suffers or consumes Electrification.
The Battle Skill consumes Electrification for bonus Electric DMG and extra SP, but only every third use grants the team an Electric DMG buff based on her Intellect.
Her Ultimate applies Electric Infliction and can force Electrification on enemies already affected, enabling a follow-up Combo Skill without external help.

Scaling

Arclight's utility scales with her Intellect for the team Electric DMG buff, while her personal damage scales with Agility and ATK.
Early game she acts as a pure SP battery; late game with the Frontiers set and Thermite Cutter she becomes a team buffer and sub-DPS.

Team Role

Arclight fits best as a SP generator and sub-DPS in teams with another Electric character who can reliably apply Electrification. She excels in fast-paced rotations where her low-cooldown Combo Skill keeps the team's energy high. Her weapon and gear can shift her from pure support to a hybrid buffer/damage dealer, but she always needs a teammate to supply the Electric Infliction she cannot easily produce herself.

Weapon

thermite_cutter Best

6★ Sword

Weapon Stat Priority

flow attack_boost will_boost

Gear

physical_dmg_boost

Pieces

armor

gloves

core 1

core 2

Stat Priority

1 agility 2 physical_dmg_bonus 3 combo_skill_dmg

Explanation

The Roving MSGR set is easy to farm and provides a straightforward damage boost that Arclight can use from the start.

Thermite Cutter remains her best early weapon because the team ATK buff is valuable even at low investment.

No alternative weapons are listed for early game, as the free selector covers her needs until late-game upgrades.

Notes

Roving MSGR gives +50 Agility and +20% Physical DMG when HP is above 80%, boosting both her normal attacks and Combo Skill.
Thermite Cutter can be obtained for free from the weapon selector in the New Horizons banner, making it very accessible early.