Arknights Ch'en Dawnstreak Build Guide: Skills & Module

Hello Doctors! Welcome to our Ch'en the Dawnstreak Build Guide for Arknights. This Operator guide covers everything you need to know about the Rhodes Island swordmaster, including her Weakness Damage mechanics, HP-scaling dragon burst playstyle, talent breakdowns, skill upgrade priorities, module recommendations, and a clear verdict on whether she's worth pulling.

LootBar offers Arknights top-up with up to 20% off!

Secure Your Arknights Top-Up with Smart Savings on LootBar
Ineffa
  • Enjoy up to 22% off on Arknights Top-Ups.
  • 3-Minute Delivery for Non-Stop Gaming.
  • Trusted 4.9/5 on Trustpilot, 10/10 among Players.
  • Official Partnership Route, Protect Your Game Wallet.

Arknights - Ch'en the Dawnstreak

6 Star Operator Details
Ch'en the Dawnstreak iconRarity6★ Standard
ClassGuard - Arts Fighter
TagNuker, DPS
Block1
RoleBoss Killer / HP-Scaling Burst / Weakness Damage
  • Ch'en the Dawnstreak Overview

Ch'en the Dawnstreak is a 6-star Arts Fighter Guard from Yan, the latest alternate version of Ch'en built entirely around annihilating bosses regardless of their defensive stats. As an Arts Fighter, her attacks natively deal Arts damage, but her first talent, Piercing Shape, Perceiving Intent, takes this further by converting her attacks into Weakness Damage while granting flat ATK and ASPD buffs. Weakness Damage shifts between Physical and Arts based on whichever the enemy's DEF or RES is lower, meaning she always hits the target's weak point. Her second talent, Percepting Heart, Unwavered by Surroundings, gives her passive self-healing scaling off her ATK and grants her a dodge against the next Physical or Arts attack whenever she goes untouched for 7 seconds. Her signature skill, Chi Xiao - Heavenly Sigh, is the reason to pull her: a 20-second cycle burst that summons a dragon which bounces clockwise off highground tiles, dealing damage scaling off the enemy's current HP with a minimum floor of 580% of her ATK per pass. The dragon can theoretically trigger up to 51 times per activation, but even without setup will land 3 to 4 ticks that shred bosses regardless of how much HP they carry.

Ch'en the Dawnstreak image

Arknights - Ch'en the Dawnstreak Talents

Below are Ch'en the Dawnstreak's talent breakdowns in Arknights:

Talent 1 - Piercing Shape, Perceiving Intent (Unlocked at Elite 1, improves at Elite 2)

Ch'en gains +13% ATK and +13 ASPD, and her attacks are converted into Weakness Damage. At Elite 1 the buff starts at +8% ATK and +8 ASPD, scaling up to +13% and +13 at Elite 2, with Potential 4 pushing it further to +16% ATK and +16 ASPD. The core mechanic here is Weakness Damage: her damage type dynamically shifts between Physical and Arts based on whichever the enemy's DEF or RES is lower. This means Ch'en always hits the enemy's weaker defensive stat automatically, eliminating the usual matchup problem that Arts damage dealers face against high-RES enemies and that Physical dealers face against high-DEF enemies.

Talent 2 - Percepting Heart, Unwavered by Surroundings (Unlocked at Elite 2)

Every 7 seconds that Ch'en goes without taking damage, she heals a random amount between 30% and 160% of her ATK as HP and dodges the next incoming Physical or Arts attack. Potential 5 raises the heal range slightly to 35% to 165% of ATK. The self-sustain scales off her extremely high base ATK, giving her meaningful survivability even without a dedicated healer, while the dodge acts as a clutch save against telegraphed big hits. Since her S3 keeps her actively attacking rather than being hit, both the healing and dodge activate frequently in combat.

Arknights - Ch'en the Dawnstreak Skill Priority

Below are the skill upgrade and Mastery priorities for Ch'en the Dawnstreak in Arknights:

SkillPriority
S3 - Chi Xiao - Heavenly Sigh★★★★★ (Highest)
S2 - Chi Xiao - Shadowless: Chase★★★ (Situational)
1 - Chi Xiao - Fleeting Night★ (Skip)

Get S3 to Level 7 first and push it straight to Mastery. Heavenly Sigh is the entire reason to invest in Ch'en the Dawnstreak. S2 is situational and only worth Mastery if you specifically need a faster burst cycle for tighter windows. S1 is not worth Mastery investment.

S3 - Chi Xiao - Heavenly Sigh (M3) - Best Choice

Ch'en S3 gif

Heavenly Sigh runs on an extremely tight 20 SP / 20 second cycle, meaning it's almost constantly available. On activation, Ch'en unleashes a powerful burst of Weakness Damage while summoning a dragon that turns clockwise every time it hits a highground tile. Each time the dragon passes through an enemy after turning, it deals damage scaling off the enemy's current HP, with a floor of 580% of her ATK per hit. In favorable positioning, it can trigger up to 51 times per activation. Even without optimization it usually lands 3 to 4 ticks per cast, which is more than enough to shred bosses regardless of their HP pool. Mastery is non-negotiable.

S2 - Chi Xiao - Shadowless: Chase - Situational

Ch'en S2 gif

Shadowless: Chase gives Ch'en a short 6-second burst window with an expanded cross-pattern range. Useful when a fight demands a faster burst cycle than S3 can provide, but rarely the optimal choice in general use. Consider Mastery only if you have specific content in mind.

S1 - Chi Xiao - Fleeting Night - Skip

Ch'en S1 gif

Fleeting Night is a basic offensive skill without the HP-scaling dragon or wide range of her other skills. Functional at SL7 for casual content but completely outclassed by S3. No reason to invest Mastery here.

Arknights - Ch'en the Dawnstreak Module

AFT-X Remnant Pages Of Memory

Module Information
ModuleAFT-X Remnant Pages Of Memory
Recommended StageStage 1 
PriorityLow - get when you're rich

Ch'en the Dawnstreak's AFT-X module offers only minor performance gains that don't meaningfully impact her already-lethal S3 output. The stat increases at Stage 1 are helpful but not transformative, and higher stages provide diminishing returns relative to the resource cost. Since Heavenly Sigh's damage largely scales off enemy HP rather than pure ATK, module upgrades add far less to her ceiling than they do for other DPS operators. Best treated as a late-game investment once higher-priority modules are covered.

Arknights- Is Ch'en the Dawnstreak Worth Pulling?

Ch'en the Dawnstreak image

Short answer: Yes, especially for boss-heavy content

Strengths

  • Heavenly Sigh's HP-scaling dragon shreds bosses regardless of how much HP they carry
  • Weakness Damage automatically shifts between Physical and Arts based on the enemy's lower defensive stat, removing bad matchups entirely
  • Extremely tight 20 SP / 20 second S3 cycle keeps her nearly always ready to burst
  • Passive self-healing scaling off her high ATK provides meaningful survivability without dedicated healer support
  • Dodges the next Physical or Arts attack every time her heal procs, saving her from telegraphed big hits
  • High +100 Trust ATK bonus makes her one of the highest ATK operators in the game
  • Available in the standard pool, obtainable through recruitment and future reruns

Weaknesses

  • Map-dependent to reach max damage. The dragon's clockwise bouncing requires highground tiles to chain effectively
  • Only S3 is truly worth investing in; S1 is a full skip and S2 is only situational
  • Block count of 1 limits her frontline holding capability
  • Module offers only minor gains, so no significant upside from further investment

Pull if you:

  • Want a dedicated boss killer that can shred any enemy regardless of defensive stats
  • Play high-difficulty content with tanky bosses that stall other DPS units
  • Want a self-sustaining Guard that doesn't need constant healer support

Skip if you:

  • Already have a well-built roster of top-tier boss killers like Mlynar or Wiš'adel
  • Are saving for a higher-priority upcoming banner
  • Are early-game and short on Elite 2 materials

Conclusion

Ch'en the Dawnstreak reforges the Ch'en identity into a pure boss-killing specialist, wielding a dragon that grows deadlier the more HP its target has left. By following our Ch'en the Dawnstreak build guide, we hope you can carve down any boss standing in your path. For Doctors planning to invest in Ch'en the Dawnstreak, try LootBar's discounted Arknights top-up now!