The highly anticipated launch of Mydei is set to coincide with the second phase of Honkai Star Rail 3.1. This Destruction character, renowned for his ability to dispatch foes with remarkable speed, is expected to attract many Trailblazers eager to enhance their gameplay. Once you’ve secured Mydei, equipping him with the right gear is essential to optimize his performance across various game activities.
In this guide, we will explore the ideal gear setup for cultivating an effective build for Mydei in Honkai Star Rail.
Essential Planar Ornaments and Relics for Mydei
Recommended Planar Ornaments

To optimize Mydei’s capabilities, focus on acquiring the following Planar Ornament sets:
- 2-piece Bone Collection’s Serene Demesne set
- 2-piece Rutilant Arena set
The 2-piece Bone Collection’s Serene Demesne is particularly effective for Mydei, as his abilities scale with HP. This set enhances both his maximum HP and CRIT DMG, benefiting his role as a damage dealer. Alternatively, the 2-piece Rutilant Arena set increases Mydei’s CRIT Rate and boosts Skill damage, making it a suitable backup option.
Recommended Relics

When it comes to Cavern Relics, target these sets for effective enhancement:
- 4-piece Scholar Lost in Erudition Relic set
- 4-piece Longevous Disciple Relic set
The 4-piece Scholar Lost in Erudition is currently the best option for Mydei, as it significantly enhances his CRIT Rate, alongside boosting damage for both his Skill and Ultimate abilities. For those wishing to avoid the grind for a new set, the 4-piece Longevous Disciple set serves as an excellent alternative, providing a boost to both HP and CRIT Rate.
Optimal Light Cones for Mydei

For a Light Cone tailored to Mydei, aim for his best-in-slot selection, Flame of Blood, Blaze My Path. This Signature Light Cone is specially designed to maximize his effectiveness. If Stellar Jades are limited, consider these alternative options:
- The Unreachable Side
- A Secret Vow
- Ninja Record: Sound Hunt
Mydei’s Ideal Stats and Traces
When building Mydei, prioritize the following main and sub-stats for both Relics and Planar Ornaments:
Main Stats
- Relic Body: HP% or CRIT DMG
- Relic Boots: SPD (preferably) or HP%
- Planar Sphere: HP% or Imaginary DMG Boost%
- Planar Rope: HP%
Sub-Stats
- HP%
- Flat HP
- CRIT Rate
- CRIT DMG
- SPD
When upgrading Mydei’s abilities, focus on the following Traces in this order:
Skill > Ultimate > Talent > Basic Attack
Effective Team Compositions Featuring Mydei
Here are some effective team combinations to maximize Mydei’s potential:
- Mydei, Tribbie, Luocha, and Sunday
- Mydei, Sunday, Remembrance MC, and Gallagher
- Mydei, Jiaoqiu, Lingsha, and Sparkle
- Mydei, Remembrance TB, Pela, and Gallagher
Ascension and Trace Material Requirements for Mydei

To fully upgrade Mydei and his abilities, you’ll need the following materials:
- Harbinger of Strife: 65x
- Fear-Stomped Flesh: 56x
- Borisin Teeth: 18x
- Courage-Torn Chest: 71x
- Lupitoxin Sawteeth: 69x
- Glory-Aspersed Torso: 73x
- Moonm Rage Fang: 139x
- Auspice Sliver: 12x
- Tracks of Destiny: 8x