Rappa team
Imaginary · BreakPlays Break supportBreak 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.

Version 2.2 · not yet released
Build guide · Honkai: Star Rail
The best Trailblazer (Harmony) build in Honkai: Star Rail (Version 4.6) is Past Self in Mirror with Watchmaker, Master of Dream Machinations. Updated November 5, 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)
After using Skill for the first time, immediately recovers 1 Skill Point(s).
When the battle starts, the Trailblazer's Energy Regeneration Rate increases by 25%, lasting for 3 turn(s).
While 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.
The 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.
Himeko 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.
A 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.
A 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.
Honkai: 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.