# Arclight Build and Team Guide

> Arclight is a five-star Electric Vanguard who generates SP for the team and scales especially well in mono-Electric setups. This plan focuses on her skill loop, stat priorities, gear, potentials, and the team setup needed to make her battery role work.

- **Game:** Arknights: Endfield
- **Category:** Characters
- **Author:** LongBeam (https://guides-factory.com/about)
- **Difficulty:** Beginner
- **Reading time:** 13 min
- **Published:** 2026-08-29
- **Updated:** 2026-08-31
- **Tags:** Arclight, Electric, SP battery, Vanguard, build, gear, team comp, weapons
- **Adapted from:** [ULTIMATE ARCLIGHT GUIDE & BUILD - Best Electric Battery | Arknights Endfield](https://www.youtube.com/watch?v=dRASwFAJRXA)
- **Canonical URL:** https://guides-factory.com/guides/arclight-build-and-team-guide

---

With this guide, you’ll build and deploy Arclight as a top-tier SP battery for Electric teams, optimize her stats and gear, and construct a lineup that fully leverages her support and skill loop. Learn how to prioritize her intellect, rotate her skills for maximum SP and damage, pick the best weapon and set bonuses, and assemble the ideal mono-Electric squad.

## Quick answer

| What | Answer |
| --- | --- |
| Rarity | 5-star |
| Best stat | Intellect in Electric teams |
| Core loop | Electric, combo, skill, combo |
| Ultimate cost | 90 energy |
| Best level stop | Level 60/80 |
| Best set | Vanguard set |
| Best weapon | Umbral Torch |
| Best team core | Perlica plus Arclight plus Avywenna |

<div class="tipbox alt"><span class="tag">Check in game</span>

- **Best weapon:** Arclight’s best weapon may have changed due to a balance patch. Where one source recommends Limit of Lightness and another lists Umbral Torch, trust the current in-game recommendation.

</div>

## Understand Arclight’s job on the team

Arclight is a five-star **Electric Vanguard** whose main role is to generate **SP** (Skill Points) for the entire squad. SP is the energy used to activate skills, and Arclight acts as a battery, keeping your team’s skill cycles fast and frequent. Her value peaks in **Electric teams** because she also provides a teamwide Electric damage buff, which scales with her intellect. 

If you build outside Electric teams, she still works reliably as an **SP generator**, although her Electric buff becomes irrelevant and her stat priorities shift. Use her anywhere you want frequent skill activation, but her full support potential requires a team focused on Electric.

## Choose the right stats for her role

Arclight’s stat priorities change based on whether you run her in Electric teams or not.

| Stat                    | Effect                                | Priority in Electric teams       | Priority outside Electric teams   |
|-------------------------|---------------------------------------|---------------------------------|----------------------------------|
| **Agility**             | Increases attack and damage           | Secondary                       | Primary                         |
| **Intellect**           | Increases attack and team Electric buff| Primary                         | Secondary                       |

- In **Electric teams**, boost her intellect. Higher intellect increases her Electric buff, amplifying both her own and the entire team’s Electric damage.
- Outside Electric-based squads, agility is more valuable for personal damage, so focus on agility and attack.

![Character stats panel for Arclight showing agility (348) and intellect (442), with intellect highlighted and detailed tooltip explaining its effects, including a 88.4% attack increase.](https://api.guides-factory.com/media/uploads/2026/08/01-stat-panel.jpg "This is the point where the stat priorities become visible.")

## Use her combo and skill to generate SP

To maximize Arclight’s battery role, repeat the key loop below:

<ul class="legend">
  <li><span class="badge free">free</span> comes naturally</li>
  <li><span class="badge setup">setup</span> requires Electrification</li>
</ul>

<ol class="checklist">
  <li class="ch setup">
    <label><input type="checkbox"><span class="body"><span class="name">Apply Electrification to an enemy</span> <span class="badge setup">setup</span><br><span class="desc">Use Perlica’s combo or trigger an Electric reaction with another element.</span></span></label>
    <em><a class="jump" href="https://www.youtube.com/watch?v=dRASwFAJRXA&t=119s" target="_blank" rel="noopener">1:59 ↗</a></em>
  </li>
  <li class="ch free">
    <label><input type="checkbox"><span class="body"><span class="name">Trigger Arclight’s combo</span> <span class="badge free">free</span><br><span class="desc">Combo skill hits three times, generating SP for the team. 3-second cooldown enables frequent triggers.</span></span></label>
    <em><a class="jump" href="https://www.youtube.com/watch?v=dRASwFAJRXA&t=93s" target="_blank" rel="noopener">1:33 ↗</a></em>
  </li>
  <li class="ch setup">
    <label><input type="checkbox"><span class="body"><span class="name">Use battle skill on Electrified enemy</span> <span class="badge setup">setup</span><br><span class="desc">Battle skill gains boosted form: three hits, last one Electric damage, consumes Electrification. Generates SP and sets up next combo trigger.</span></span></label>
    <em><a class="jump" href="https://www.youtube.com/watch?v=dRASwFAJRXA&t=153s" target="_blank" rel="noopener">2:33 ↗</a></em>
  </li>
  <li class="ch free">
    <label><input type="checkbox"><span class="body"><span class="name">Trigger combo again</span> <span class="badge free">free</span><br><span class="desc">Consuming Electrification with battle skill reactivates combo, generating more SP.</span></span></label>
    <em><a class="jump" href="https://www.youtube.com/watch?v=dRASwFAJRXA&t=177s" target="_blank" rel="noopener">2:57 ↗</a></em>
  </li>
</ol>

Arclight’s loop is built around the interplay between Electrification and her combo/battle skill, ensuring almost constant SP supply.

![Combat screen with Arclight performing a three-hit combo; electric burst and electrification icon visible on enemy, team status with four characters shown.](https://api.guides-factory.com/media/uploads/2026/08/02-combo-demo.jpg "Arclight's three-hit combo animation and electrification trigger are shown in live combat to illustrate her SP generation loop.")

![Battle screen with Arclight performing an electric skill, target electrified and hit with a boosted attack, damage numbers 5990 and 403 displayed.](https://api.guides-factory.com/media/uploads/2026/08/03-electro-skill.jpg "Arclight’s battle skill is used on an electrified enemy, displaying the boosted attack and electrification effect.")

## Time her ultimate around Electrification and stun

Arclight’s ultimate is essential for both applying high-level Electrification and maximizing team burst damage during stun windows. Follow these steps:

<ul class="legend">
  <li><span class="badge setup">setup</span> coordinate with stun timing</li>
  <li><span class="badge free">free</span> triggers naturally</li>
</ul>

<ol class="checklist">
  <li class="ch setup">
    <label><input type="checkbox"><span class="body"><span class="name">Charge and time her ultimate (90 energy)</span> <span class="badge setup">setup</span><br><span class="desc">Ultimate dashes forward and applies Electric Infliction to targets.</span></span></label>
    <em><a class="jump" href="https://www.youtube.com/watch?v=dRASwFAJRXA&t=262s" target="_blank" rel="noopener">4:22 ↗</a></em>
  </li>
  <li class="ch setup">
    <label><input type="checkbox"><span class="body"><span class="name">Let the delayed explosion consume Electric charges</span> <span class="badge setup">setup</span><br><span class="desc">The delayed detonation applies Electrification by consuming all charges. Higher stacks yield higher-level Electrification.</span></span></label>
    <em><a class="jump" href="https://www.youtube.com/watch?v=dRASwFAJRXA&t=262s" target="_blank" rel="noopener">4:22 ↗</a></em>
  </li>
  <li class="ch free">
    <label><input type="checkbox"><span class="body"><span class="name">Combo activation after Electrification</span> <span class="badge free">free</span><br><span class="desc">Applying Electrification triggers her combo, giving extra SP.</span></span></label>
    <em><a class="jump" href="https://www.youtube.com/watch?v=dRASwFAJRXA&t=285s" target="_blank" rel="noopener">4:45 ↗</a></em>
  </li>
  <li class="ch setup">
    <label><input type="checkbox"><span class="body"><span class="name">Battle skill to consume the Electrification</span> <span class="badge setup">setup</span><br><span class="desc">Ideally, use battle skill right as the enemy is stunned for maximum teamwide damage. This reactivates her combo and sets up the team for their ultimates.</span></span></label>
    <em><a class="jump" href="https://www.youtube.com/watch?v=dRASwFAJRXA&t=346s" target="_blank" rel="noopener">5:46 ↗</a></em>
  </li>
</ol>

The order and timing are critical: wait for stun, use ultimate to apply Electrification, and finish with battle skill to activate the full Electric damage buff. This is how your team lands the biggest hits during the stun’s damage window.

![Arclight performing her ultimate attack, extending her arm forward with electric energy effects and her weapon glowing.](https://api.guides-factory.com/media/uploads/2026/08/04-ultimate-hit.jpg "Arclight is shown in the first half of her ultimate animation, preparing to dash forward and apply electrification.")

## Level her skills and character efficiently

Skill leveling and character upgrades should be focused for best value:

<ol class="checklist">
  <li>
    <label><input type="checkbox"><span class="name">Keep basics at level 3</span></label>
    <em>Basic attacks are never a priority for her loop.</em>
  </li>
  <li>
    <label><input type="checkbox"><span class="name">Raise combo and battle skill to level 6</span></label>
    <em>Level 6 is the efficient breakpoint; it improves SP generation noticeably <a class="jump" href="https://www.youtube.com/watch?v=dRASwFAJRXA&t=488s" target="_blank" rel="noopener">8:08 ↗</a></em>
  </li>
  <li>
    <label><input type="checkbox"><span class="name">Take ultimate to level 6 if you have resources</span></label>
    <em>Provides some extra damage but is less critical than combo/battle skill upgrades.</em>
  </li>
  <li>
    <label><input type="checkbox"><span class="name">Stop at level 60/80 for character</span></label>
    <em>Allows gold gear to be equipped; further leveling only boosts personal damage and isn’t cost-effective for her support role <a class="jump" href="https://www.youtube.com/watch?v=dRASwFAJRXA&t=436s" target="_blank" rel="noopener">7:16 ↗</a></em>
  </li>
</ol>

<p class="note">Invest extra materials into your main DPS and Electric support before pushing Arclight past 60/80 or skill level 6.</p>

## Pick the best weapon for her team

The best weapon for Arclight depends on your team’s elemental focus. Here are the main contenders:

| Weapon                 | Type          | Where to use                | Bonuses and effects |
|------------------------|--------------|-----------------------------|--------------------|
| **Limit of Lightness** | 5-star sword  | Electric & Fire teams        | Agility, attack, intellect. Team buff: Electric/Fire damage stacks (+8.4% per stack, up to 3) when she generates SP. |
| **12 Questions**       | 5-star sword  | Non-Electric/Fire teams      | Agility, attack, secondary stat. Buffs Arclight’s personal attack for 20s after she consumes an elemental reaction, stacking twice. |
| **More Thermid Cutter**| 6-star wheel  | All-purpose                 | Higher base attack, wheel main stat. Grants teamwide attack buff for 20s (stacking twice) whenever Arclight generates SP. |

- For **Electric** or **Fire** teams, Limit of Lightness’s teamwide elemental damage buff is optimal.
- For mixed or non-elemental teams, More Thermid Cutter’s higher base attack and teamwide attack buff make it a flexible pick.
- 12 Questions is a specialized choice if you want to maximize Arclight's own attack, but it offers less team utility.

![Weapon detail screen showing OBJ Edge of Lightness sword, with stats: base ATK 403, agility boost +124, attack boost +31.2%, secondary attribute +14.0%, and a passive buff granting team Heat and Electric DMG Dealt +8.4% for 20s, up to 3 stacks.](https://api.guides-factory.com/media/uploads/2026/08/06-weapon-list_LZTTlbu.jpg "Detailed stats and passive for OBJ Edge of Lightness are shown for weapon evaluation.")

<div class="tipbox alt"><span class="tag">Patch may have changed this</span>

- **Weapon rankings can shift after balance updates.** Always check in-game for the current recommended weapon — Limit of Lightness and Umbral Torch may be listed differently depending on recent changes.

</div>

## Build the right set pieces

Arclight’s most effective gear set is the **Vanguard (Frontiers) set**, which complements her SP battery role.

| Gear piece                | Effect in Electric teams            | Effect outside Electric teams       | Notes            |
|---------------------------|------------------------------------|------------------------------------|------------------|
| **Vanguard set (3-piece)**| 18% team damage for 12s per SP gain| Same effect; universal benefit     | 30s cooldown     |
| **Shoulder (Electric)**    | Agility, intellect, secondary stats| Critical set for battle skill damage| Use secondary-stat shoulder if intellect helps |
| **Chest (Electric)**       | Agility, intellect                  | Battle skill damage chest          |                  |
| **Gloves (Electric)**      | Support set: recharge, intellect   | Battle skill damage gloves         | Flex slot for recharge in Electric teams |

- Always equip the full Vanguard set for Arclight; its bonus aligns perfectly with her high SP generation.
- In **Electric teams**, choose shoulder and chest pieces with agility/intellect and gloves with energy recharge/intellect.
- In **non-Electric** teams, swap out for pieces that boost battle skill damage and critical.

![Gear screen showing the Frontiers Gear Pack selected with bonus: 3-piece effect grants 18% team damage for 12s when SP is recovered, 30s cooldown, plus Combo Skill Cooldown Reduction and displayed stats for defense, agility, intellect, and secondary attribute value.](https://api.guides-factory.com/media/uploads/2026/08/07-set-bonus_PUzDwpd.jpg "The Frontiers (Vanguard) set bonus is shown, explaining why this gear set provides a strong teamwide damage buff.")

## Know which potentials matter most

Arclight’s potentials enhance her battery role and team Electric buff incrementally. Here’s what matters:

| Potential                | Effect                                                                   | Importance           |
|--------------------------|---------------------------------------------------------------------------|----------------------|
| **1st (Battery+10)**     | Battle skill consumes Electrification: +10 SP generated                   | Crucial for team battery |
| **2nd (Stat Boost)**     | +15 agility, +15 intellect                                                | Mildly improves both roles |
| **3rd (Buff+30%)**       | Passive Electric buff increases by 30%                                     | Major for mono-Electric   |
| **4th (Ult Cost-15%)**   | Ultimate cost reduced by 15%                                              | Useful for rotation      |
| **5th (Passive Faster)** | Passive Electric buff activates after 2 battle skill uses (was 3)          | Makes Electric teams more consistent |

- Prioritize potentials that directly raise SP generation and Electric buff strength (1st and 3rd especially).
- Potentials that reduce ultimate cost or accelerate passive activation smooth out the rotation in high-pressure fights.
- Stat boosts are always welcome, but they are less impactful compared to rotation and battery upgrades.

![Battle UI showing Arclight and party members with buff icons active near their portraits during combat. Electric buff and other status effects are visible on the lower left character HUD.](https://api.guides-factory.com/media/uploads/2026/08/05-buff-icon.jpg "The passive only turns on after the required battle skill uses.")

## Run her with the right teammates

Arclight’s battery role depends on proper Electrification producers and damage converters. Build teams with these:

- **[Perlica](/guides/arknights-endfield-perlica-guide)** is essential for consistent Electrification; her combo makes Arclight’s rotation work reliably.
- The standard core is **Perlica (Electric enabler) + Arclight (battery/support) + [Avywenna](/guides/avywenna-build-guide-for-arknights-endfield) (Electric DPS)**. Avywenna is currently the only named Electric DPS and perfectly leverages Arclight’s passive buff.
- You must include one strong DPS to convert Arclight’s SP output and buffs into real damage. In mono-Electric teams, this is Avywenna.
- For the fourth slot:
    - **Anatyll** is an excellent free-to-play Electric support who boosts team damage.
    - **Gilberta** offers even greater burst and grouping via corrosion and ultimate, but is harder to obtain (third banner, limited early access).

Mono-Electric teams are where Arclight shines; outside them, she still acts as a strong battery regardless of DPS type, but her passive is less impactful.

![Team composition screen with Perlica (level 60) and Arclight (level 70) shown in the first and second party slots; two other slots are empty.](https://api.guides-factory.com/media/uploads/2026/08/08-team-lineup.jpg "The team section works best with the full party visible together.")

## Also worth knowing

<div class="tipbox alt"><span class="tag">Before you commit</span>

- **Mono-Electric rotation is tricky.** Many players want a perfectly optimized Electric rotation guide, as lining up Arclight’s buff with the stun and team ultimates takes practice. Expect some timing errors early and consider using a written plan for the combo/skill/ultimate order.
- **You can build Arclight as a main DPS, but it’s not optimal.** Multiple players want to field her as a personal carry. While you can gear and skill for damage, this sacrifices her SP battery loop and team buffs — only recommended if you value play style over output.
- **Other SP generators and Electric supports may replace her.** If you lack Arclight or want flexibility, characters like Akekuri can act as a battery, although the team loses out on Arclight’s unique passive scaling.
- **Her signature weapon is less valuable for personal DPS setups.** The weapon is optimized for team buffs (Electric/Fire) rather than solo damage. If you plan to use Arclight mainly as an on-field damage dealer, consider alternative swords with more personal attack or critical boosts.

</div>

---

## FAQ

### Can Arclight be played as a main DPS?

She works best as a secondary unit that keeps the SP loop going. Building her as a main on-field damage dealer is possible only as a personal preference setup, but it gives up a lot of her best value because her skills want frequent activation and interruption of basic attacks.

### What stat should I prioritize on Arclight?

Intellect is the priority in Electric teams because it increases the teamwide Electric damage buff from her passive. Outside Electric teams, that buff does nothing, so agility becomes the better general damage stat.

### What is Arclight’s best skill upgrade order?

Keep basics low, then raise combo and battle skill to level 6 first because that improves SP generation. The ultimate can also go to level 6 for damage, but it is less important than the two core skills.

### Which weapon is best if I am not running Electric or Fire?

Outside Electric and Fire teams, the six-star weapon More Thermid Cutter becomes a strong option because it gives higher base attack and a teamwide attack buff when SP is generated. The signature five-star weapon is still fine, but the six-star option is the better all-purpose pick.

