In the ever-evolving cosmos of Honkai: Star Rail, the distinction between a character's star rating often blurs when considering their true combat potential. A prime example of this principle is Xueyi, the formidable four-star Quantum Harmony character from the Xianzhou Luofu and a key member of the Ten-Lord Commission. Since her introduction, Xueyi has consistently proven that raw power isn't exclusive to five-star units. Her unique mechanics and fluid, devastating animations—like a marionette controlled by the threads of fate—allow her to carve a significant niche in many team compositions. For Trailblazers looking to harness her full strength in 2026, a meticulous understanding of her upgrade path is essential. This guide consolidates all necessary information for ascending Xueyi and maximizing her traces, ensuring she becomes a cornerstone of your strategic arsenal.

🚀 Xueyi Ascension Materials: Building the Foundation
Ascending Xueyi is the first critical step to unlocking her higher-level capabilities. The process requires a dedicated farm for specific materials spread across Jarilo-VI and the Xianzhou Luofu. Think of this grind not as a chore, but as forging a blade—each material is another fold in the steel, adding strength and resilience. Below is the complete breakdown of materials needed for each ascension phase, presented in a clear table for easy reference.
| Ascension Level | Required Character Level | Core Drops (Extinguished/Glimmering/Squirming) | Stagnant Shadow Drop (Nail of the Ape) | Credit Cost |
|---|---|---|---|---|
| 1 | 20 | 4x Extinguished Core | - | 3,200 |
| 2 | 30 | 8x Extinguished Core | - | 6,400 |
| 3 | 40 | 5x Glimmering Core | 2x | 12,800 |
| 4 | 50 | 8x Glimmering Core | 5x | 32,000 |
| 5 | 60 | 5x Squirming Core | 15x | 64,000 |
| 6 | 70 | 7x Squirming Core | 28x | 128,000 |
| TOTAL | - | 12x Extinguished, 13x Glimmering, 12x Squirming | 50x | 246,400 |
📍 Farming Locations:
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Core Drops: These are obtained from Fragmentum monsters found throughout the game. For efficient farming, Jarilo-VI remains the most densely populated area for these enemies, making it the optimal hunting ground.
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Nail of the Ape: This material is acquired from the Shape of Abomination Stagnant Shadow located in the Scalegorge Waterscape on the Xianzhou Luofu. Each challenge consumes 30 Trailblaze Power, so planning your Power expenditure is crucial.
⚡ Xueyi Trace Materials: Honing the Edge
While ascension unlocks her level cap, upgrading Xueyi's traces is what truly sharpens her into a precision instrument. The trace system allows you to enhance her Basic Attack, Skill, Ultimate, and Talent, significantly boosting her damage output and support utility. Fortunately, as a four-star character, her trace material requirements are slightly less demanding than those of her five-star counterparts—like comparing the intricate wiring of a clockwork doll to the vast circuitry of a starship's core. Here’s what you need for each category.

Basic Attack Trace Upgrades
Upgrading Xueyi's Basic Attack enhances her consistent, turn-by-turn damage potential.
| Trace Level | Crimson Calyx Materials (Shattered/Lifeless/Worldbreaker Blade) | Core Drops | Credit Cost |
|---|---|---|---|
| 2 | 2x Shattered Blade | 4x Extinguished Core | 4,000 |
| 3 | 2x Lifeless Blade | 2x Glimmering Core | 8,000 |
| 4 | 4x Lifeless Blade | 3x Glimmering Core | 16,000 |
| 5 | 2x Worldbreaker Blade | 2x Squirming Core | 36,000 |
| 6 | 6x Worldbreaker Blade | 3x Squirming Core | 128,000 |
| TOTAL | 2x Shattered, 6x Lifeless, 8x Worldbreaker | 4x Extinguished, 5x Glimmering, 5x Squirming | 192,000 |
Farming Tip: The required Blades are farmed from Crimson Calyxes, primarily the "Calyx of the Bud" in the Corridor of Fading Echoes on the Xianzhou Luofu.
Skill, Ultimate, and Talent Trace Upgrades
These traces are the heart of Xueyi's kit, defining her role and synergies. Maximizing them should be a top priority.
The total material cost for leveling one of these traces (Skill, Ultimate, or Talent) from level 1 to level 10 is as follows:
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Crimson Calyx Materials: 2x Shattered Blade, 12x Lifeless Blade, 23x Worldbreaker Blade.
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Core Drops: 6x Extinguished Core, 10x Glimmering Core, 5x Squirming Core.
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Echo of War Material: 3x Past Evils of the Borehole Planet Disaster.
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Premium Material: 1x Tracks of Destiny.
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Credits: 522,000.
🔴 Key Material Alert: Past Evils of the Borehole Planet Disaster
This is a weekly-bound material obtained from the Echo of War: Borehole Planet's Old Crater challenge, unlocked after completing the relevant story in Version 1.6. You can only earn nine of these per week, making it a time-gated resource. Planning ahead for Xueyi and other characters requiring this material is essential. Farming for her traces is akin to assembling a complex kinetic sculpture—each piece must be acquired with patience before the entire mechanism can spring to life.
💎 Why Invest in Xueyi? Strategic Value in 2026
Beyond the material lists, understanding Xueyi's value is key. In the current meta of 2026, she offers several unique advantages:
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Quantum Breaker: As a Quantum Harmony character, she provides valuable Weakness Break efficiency against Quantum-weak enemies, a niche that remains perpetually relevant.
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Four-Star Efficiency: Her relative ease of obtaining Eidolons compared to five-star characters means her potential can be maximized more quickly for free-to-play and low-spend players.
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Future-Proof Kit: Her mechanics, which involve stacking and detonating debuffs, synergize well with both old and new characters that apply multiple status effects, ensuring her team compatibility endures.

📅 Efficient Farming Plan: A Week-by-Week Approach
To avoid burnout, follow a structured farming plan:
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Week 1: Focus on farming Core drops on Jarilo-VI and Nails of the Ape from the Stagnant Shadow. Use your daily Trailblaze Power here.
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Week 2: Shift focus to Crimson Calyxes for the required Blades. Simultaneously, complete your three weekly Echo of War runs for the Past Evils material.
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Week 3 & Beyond: Continue calyx farming and weekly Echo of War. Use any excess Power to farm Credits or other materials if needed. Remember to participate in events, as they often provide bonus materials and Tracks of Destiny.
By methodically gathering these resources, you will transform Xueyi from a promising recruit into a masterful enforcer of the Ten-Lord Commission's will, her combat prowess unfolding like a meticulously inked scroll revealing its secrets. Her journey from acquisition to mastery is a testament to Honkai: Star Rail's design, where dedication to any character, regardless of rarity, yields powerful and satisfying results on the battlefield.