Version 2.2 · not yet released
Build guide · Honkai: Star Rail
The best Trailblazer (Harmony) build in Honkai: Star Rail (Version 4.4) is Past Self in Mirror with Watchmaker, Master of Dream Machinations. Updated August 28, 2026
Stack Speed until the desired breakpoint then prioritize as much Break Effect as possible. As a bonus, but not at the expense of Speed or Break, seek out defensive stats to improve your survivability.
#1
Ultimate
Max first
#2
Talent
Then
#3
Skill
Next
#4
Basic
Later
Major traces, best first: Dance With the One (A2) > Hat of the Theater (A6) > Shuffle Along (A4)
E1Best Seat in the House
E2Jailbreaking Rainbowwalk
E3Level bump
E4Dove in Tophat
E5Level bump
E6Tomorrow, Rest in SpotlightE1After using Skill for the first time, immediately recovers 1 Skill Point(s).
E2When the battle starts, the Trailblazer's Energy Regeneration Rate increases by 25%, lasting for 3 turn(s).
E4While the Trailblazer is on the field, increases the Break Effect of all teammates (excluding the Trailblazer), by an amount equal to 15% of the Trailblazer's Break Effect.
E6The number of additional DMG applications by the Skill increases by 2.
Break damage across a whole wave rather than one target, so both Harmony slots go to Break amplification and the sustain adds Break of its own.
RappaMain DPS
Ruan MeiBreak amplifier
Trailblazer (Harmony) — this characterBreak support
LingshaSustain · BreakHimeko follows up whenever an enemy is Broken, which turns the standard-warp Erudition unit into a Break team’s damage dealer at no pull cost.
HimekoMain DPSRuan MeiBreak amplifierTrailblazer (Harmony) — this characterBreak support
GallagherSustain · BreakA Break Effect carry with two Harmony units that raise Break damage and Weakness Break efficiency, and a sustain that keeps Break uptime rather than adding damage.
FireflyMain DPSRuan MeiBreak amplifieror Trailblazer (Harmony)
FugueWeakness implantLingshaSustain · BreakA single-target Break carry: one Harmony unit raises Break damage, one implants the Weakness he needs, and the sustain is the one that also breaks.
BoothillMain DPSRuan MeiBreak amplifierFugueWeakness implantor Trailblazer (Harmony)GallagherSustain · BreakHonkai: Star Rail 5★ Imaginary Harmony Support
Past Self in Mirror tops the light cone ranking for Trailblazer (Harmony) at S1, ahead of Dance! Dance! Dance!, In Pursuit of the Wind and Memories of the Past. That order is prydwen.gg's, measured in play and rephrased here; every row of it sits under Light cones below.
Run Watchmaker, Master of Dream Machinations on Trailblazer (Harmony), with Thief of Shooting Meteor and Eagle of Twilight Line behind it. The planar ornament is Talia: Kingdom of Banditry. Main stats are HP% > DEF% body, Speed feet, HP% > DEF% sphere, Break Effect > Energy Regen Rate rope. Roll substats in the order SPD = Break Effect% > HP% = DEF%.
Trace priority is Ultimate > Talent > Skill > Basic. The Ultimate costs 140 energy, which is what an Energy Regeneration Rate target has to clear.
Trailblazer (Harmony) plays Break support in the Rappa team, alongside Rappa, Ruan Mei and Lingsha.
Deals Imaginary DMG equal to 100% of the Trailblazer's ATK to one designated enemy target.
Ability level
6 is the cap from trace materials; Eidolons add the rest.
| Attribute | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
|---|---|---|---|---|---|---|---|---|---|---|
| Basic ATK DMG | 50% | 60% | 70% | 80% | 90% | 100% | 110% | 120% | 130% | 140% |
Deals Imaginary DMG equal to 50% of the Trailblazer's ATK to one designated enemy target and additionally deals DMG for 4 times, with each time dealing Imaginary DMG equal to 50% of the Trailblazer's ATK to a random enemy.
Ability level
10 is the cap from trace materials; Eidolons add the rest.
| Attribute | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Skill DMG | 25% | 28% | 30% | 33% | 35% | 38% | 41% | 44% | 47% | 50% | 53% | 55% | 57% | 60% | 63% |
Grants all allies the Backup Dancer effect, lasting for 3 turn(s). This duration decreases by 1 at the start of Trailblazer's every turn. Allies with the Backup Dancer effect have their Break Effect increased by 30%. And when they attack enemy targets that are in the Weakness Broken state, the Toughness Reduction of the attack will be converted into 1 instance of Super Break DMG.
Ability level
10 is the cap from trace materials; Eidolons add the rest.
| Attribute | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bonus | 15% | 17% | 18% | 20% | 21% | 23% | 24% | 26% | 28% | 30% | 32% | 33% | 35% | 36% | 38% |
The Trailblazer immediately regenerates 10.0 Energy when an enemy target's Weakness is Broken.
Ability level
10 is the cap from trace materials; Eidolons add the rest.
| Attribute | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Energy Regenerated | 5.0 | 5.5 | 6.0 | 6.5 | 7.0 | 7.5 | 8.1 | 8.8 | 9.4 | 10.0 | 10.5 | 11.0 | 11.5 | 12.0 | 12.5 |
After the Technique is used, at the start of the next battle, all allies' Break Effect increases by 30%, lasting for 2 turn(s).
A2When the number of enemy targets on the field is (≥5)/4/3/2/1, the Super Break DMG triggered by the Backup Dancer effect increases by 20%/30%/40%/50%/60%.
A4When using Skill, additionally increases the Toughness Reduction of the first instance of DMG by 100%.
A6After ally targets break weakness, additionally delays the action of the enemy target by 30%.
Totals at full unlock, summed across every node of that stat. Ascension rank gates the nodes as it gates the Bonus Abilities above.
Level 80 and every ability maxed
1,812,400
Credits 12 material lines
Ascension to 80
246,400
Credits 4 materials · 6 steps
All 3 abilities maxed
1,566,000
Credits 3× the single-ability bill
Thief's Instinct ×43,200Credits
Thief's Instinct ×86,400Credits
Enigmatic Ectostella ×4
Usurper's Scheme ×512,800Credits
Enigmatic Ectostella ×6Usurper's Scheme ×832,000Credits
Conqueror's Will ×5Enigmatic Ectostella ×864,000Credits
Conqueror's Will ×7Enigmatic Ectostella ×10128,000Credits
Total to level 80
246,400 Credits
Conqueror's Will ×12Enigmatic Ectostella ×28Usurper's Scheme ×13Thief's Instinct ×12Thief's Instinct ×22,000Credits
Firmament Note ×2Thief's Instinct ×44,000Credits
Celestial Section ×2Usurper's Scheme ×28,000Credits
Celestial Section ×4Usurper's Scheme ×316,000Credits
Celestial Section ×6Usurper's Scheme ×524,000Credits
Conqueror's Will ×2
Heavenly Melody ×236,000Credits
Conqueror's Will ×3Heavenly Melody ×4
Past Evils of the Borehole Planet Disaster ×164,000Credits
Heavenly Melody ×6Past Evils of the Borehole Planet Disaster ×1128,000Credits
Tracks of Destiny ×1Heavenly Melody ×11Past Evils of the Borehole Planet Disaster ×1240,000Credits
One ability maxed
522,000 Credits
Tracks of Destiny ×1Conqueror's Will ×5Heavenly Melody ×23Past Evils of the Borehole Planet Disaster ×3Celestial Section ×12Usurper's Scheme ×10Firmament Note ×2Thief's Instinct ×6All 3 abilities maxed
1,566,000 Credits
Tracks of Destiny ×3Conqueror's Will ×15Heavenly Melody ×69Past Evils of the Borehole Planet Disaster ×9Celestial Section ×36Usurper's Scheme ×30Firmament Note ×6Thief's Instinct ×18E1After using Skill for the first time, immediately recovers 1 Skill Point(s).
E2When the battle starts, the Trailblazer's Energy Regeneration Rate increases by 25%, lasting for 3 turn(s).
E3Skill Lv. +2, up to a maximum of Lv. 15. Talent Lv. +2, up to a maximum of Lv. 15.
E4While the Trailblazer is on the field, increases the Break Effect of all teammates (excluding the Trailblazer), by an amount equal to 15% of the Trailblazer's Break Effect.
E5Ultimate Lv. +2, up to a maximum of Lv. 15. Basic ATK Lv. +1, up to a maximum of Lv. 10.
E6The number of additional DMG applications by the Skill increases by 2.
Imaginary
Harmony
