Vanguard Breaker is the Day 1 stage of Honkai: Star Rail's Stellar Shimmer event. Check out the best teams, how to beat Supergiant difficulty, and all the rewards in this Day 1 guide!

Stellar Shimmer Event Guides
Day 1	Day 2	Day 3	Day 4
Day 5	Day 6	Day 7	Day 8

Stellar Shimmer Day 1 Best Teams

Vanguard Breaker Premium Team

Stellar Shimmer Day 1 Premium Team
Firefly	Trailblazer (Imaginary)	Ruan Mei	Gallagher

Firefly and Harmony Trailblazer are the trial characters for Day 1.

With Firefly being one of Trial characters, we recommend using Firefly's best team comp for Day 1 of Stellar Shimmer. The ideal team will be Firefly, Harmony Trailblazer, Ruan Mei, and Gallagher.

Other Recommended Characters

DPS
Support

If you don't have Ruan Mei or Gallagher, we suggest replacing them with either Pela for more damage, Asta for more Speed, or Aventurine for a more offense oriented sustain. If you don't have Aventurine, any other healer will do fine.

If, for whatever reason, you don't want to use the free Firefly trial character, Himeko, Jingliu, and Dr. Ratio are ideal substitutes since the enemies are weak to their Element.

Vanguard Breaker F2P Team

Stellar Shimmer Day 1 F2P Team
Firefly	Trailblazer (Imaginary)	Asta	Natasha

Asta in this F2P team comp will help speed the entire team up so they can reach the Cycle requirement for a full clear and also help toughness break Fire-weak enemies. However, she can be replaced with Pela for more damage.

How to Beat Day 1 Supergiant Star

Focus on Weakness Breaking the Adds

The Vanguard Breaker buff is a tremendous help that enables Firefly to never lose her turn. When possible, try to target an add that's right beside the boss or elite enemy to help chip away at their toughness bar.

Target Argenti when Add Toughness is Low

In Supergiant Star, Argenti will appear as a boss. Use the Blast attacks of Firefly's Ultimate to get his summons' toughness down.

When the toughness of enemies next to Argenti is low enough, you can focus Firefly's Blast attack on Argenti to bring his toughness down further and Weakness Break his adds in one hit!

Once Argenti is Weakness Broken, you can return your focus to remaining summons on the field to keep Firefly's turn for as much as possible.

Argenti Enemy Guide

Stellar Shimmer Day 1 Stage Details

Vanguard Breaker Trial Characters

Trial	Character Build
Firefly	Indelible Promise Iron Cavalry Against the Scourge Forge of the Kalpagni Lantern
Trailblazer (Imaginary)	Memories of the Past Watchmaker, Master of Dream Machinations Talia: Kingdom of Banditry

Vanguard Breaker Stage Mechanic

Vanguard Breaker Objectives

Vanguard Breaker Enemies

Dwarf Star Enemies

Enemy	Weakness
Abundance Sprite - Malefic Ape
Wraith Warden
Mara-Struck Soldier
Dreamjolt Troupe's Bubble Hound

Supergiant Star Enemies

Enemy	Weakness
Argenti
Abundance Sprite - Malefic Ape
Senior Staff - Team Leader
Wraith Warden
Mara-Struck Soldier
Dreamjolt Troupe's Bubble Hound
Grunt - Field Personnel
Grunt - Security Personnel
The Honored

Stellar Shimmer Day 1 Rewards

Challenges	Rewards
Complete the Vanguard Breaker "Dwarf Star" mode challenge	Stellar Jade x30 Traveler's Guide x3 Credit x3000
Eliminate 3 wave(s) of enemies in the Vanguard Breaker "Supergiant Star" mode challenge	Stellar Jade x30 Dynamic Outlining x5
Eliminate 4 wave(s) of enemies in the Vanguard Breaker "Supergiant Star" mode challenge	Relic Remains x15 Lost Gold Fragment x5
Eliminate 5 wave(s) of enemies in the Vanguard Breaker "Supergiant Star" mode challenge	Relic Remains x5 Credit x20000

Vanguard Breaker Information

Day 1 Stage of Stellar Shimmer Event

Vanguard Breaker is the Day 1 stage of the Stellar Shimmer combat event. The Day 1 stage effects involve Turn Advance and Break damage.

Stellar Shimmer Event Guide

Honkai: Star Rail Related Guides

Stellar Shimmer Event Guide

Stellar Shimmer Day Guides

Stage	Trial Characters
Day 1	◆ Firefly ◆ Harmony Trailblazer
Day 2	◆ Acheron ◆ Silver Wolf
Day 3	◆ Topaz ◆ Robin
Day 4	◆ Imbibitor Lunae ◆ Sparkle
Day 5	◆ Boothill ◆ Ruan Mei
Day 6	◆ Argenti ◆ Huohuo
Day 7	◆ Jade ◆ Herta
Day 8	◆ Kafka ◆ Black Swan

Other Upcoming and Current Events

All Events and Schedules