Mydei is a 5-star Imaginary character in Honkai: Star Rail, specializing in the path of Destruction. Designed to excel as a primary damage dealer in hypercarry teams, Mydei delivers immense damage through his Enhanced Skill, making him a formidable force on the battlefield. To unlock his full potential, this comprehensive Mydei build guide will explore the optimal Light Cones, relics, and planar ornaments tailored to his strengths.
Additionally, we will provide insights on trace priorities to ensure efficient use of your resources and materials, maximizing his performance in any team composition. Whether you are a seasoned player or new to building hypercarry setups, this guide will equip you with everything needed to elevate Mydei to his peak potential. Don’t forget to check Lootbar.gg for exclusive discounts on your next purchase.
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Mydei – Basic Introduction
Mydei is a 5-star Imaginary character following the Destruction path, excelling as an HP-scaling DPS with remarkable survivability. His unique kit focuses on sacrificing his own HP to unleash devastating Blast damage and activating his Enhanced State, Vendetta, for amplified combat potential.
Key Features:
- Self-Sustain: Gains taunt, temporary death immunity, and HP restoration through his Ultimate.
- Enhanced State Mechanics: Automatically triggers after HP loss, increasing Max HP, resetting action order, and unlocking more powerful skills.
- Team Flexibility: Functions exceptionally well in hypercarry team compositions.
For a deeper dive into Mydei’s abilities and skill interactions, see [Mydei Kit].
★ Rarity: 5-star ★ Combat Type: Imaginary ★ Path: Destruction ★ Role: DPS
Mydei Trace Priority
When building Mydei, prioritizing his Major Traces is essential, followed by ability upgrades for maximum effectiveness.
Major Traces:
- Earth and Water: Allows Mydei to survive lethal damage during his Vendetta state, crucial for maintaining survivability while consuming large amounts of HP.
- Thirty Tyrants: Grants immunity to Crowd Control effects, especially valuable against enemies with heavy CC like Kafka or Aurumaton.
- Bloodied Chiton: Increases CRIT RATE based on excess HP (up to 48% at 4000+ HP), simplifying his overall build.
Mydei’s damage output primarily comes from his Skill and Ultimate, while his Ultimate also provides HP recovery. Therefore, focus on upgrading Skill and Ultimate first, followed by Talent. His Basic ATK is the lowest priority, as it is rarely used during the Enhanced State.
Trace Priority Summary: Skill > Ultimate > Talent > Basic ATK
Mydei Recommended Light Cones
Best Choice
Effect: Increases Max HP by 18%–30% and Incoming Healing by 20%–40%. Using Skill or Ultimate consumes 6%–8% of Max HP to deal 30%–50% increased damage. If consumed HP exceeds 500, damage is further boosted by 30%–50%. If the current HP is insufficient, HP is reduced to 1.
Why It Works: This Light Cone provides essential Max HP and Incoming Healing, helping Mydei meet his Major Trace 3 requirements and sustain healing consistently. The HP consumption also accelerates Enhanced Skill 2 and boosts damage output.
Good Choices
- CRIT & HP Focus
Effect: Increases CRIT Rate by 18%–30% and Max HP by 18%–30%. When attacked or consuming HP, damage increases by 24%–40% until the next attack.
Why It Works: Provides balanced CRIT Rate and Max HP while consistently increasing damage whenever Mydei takes or consumes HP, giving almost complete uptime.
- HP Comparison DMG Boost
Effect: Increases overall damage by 20%–40% and deals an extra 20%–40% damage to enemies whose HP percentage is equal to or higher than Mydei’s current HP.
Why It Works: Offers solid damage scaling and an additional bonus against enemies with equal or higher HP than Mydei.
- HP Loss / Heal CRIT DMG
Effect: Increases Max HP by 12%–24%. When losing or restoring HP, CRIT DMG increases by 18%–36% for two turns (once per turn).
Why It Works: Grants Max HP and improves CRIT DMG whenever Mydei loses or recovers HP—a frequent occurrence. Available in the 2.6 event.
- HP Threshold Heal & DMG
Effect: If cumulative HP loss or consumption exceeds 25% of Max HP in a single action, heals 15% Max HP and boosts damage by 25%–50% for two turns (once every three turns).
Why It Works: Ideal for Mydei’s Skill usage, providing both healing and a substantial damage boost. Available from the Memory of Chaos shop.
Mydei Recommended Relics, Planar Ornaments & Stats Priority
Relics
Mydei performs best with either the Scholar: Lost in Erudition set or Longevous Disciple set.
Scholar: Lost in Erudition
- 2-Pc: Increases CRIT Rate by 8%.
- 4-Pc: Increases Skill and Ultimate damage by 20%. After using Ultimate, the next Skill deals 25% additional damage.
Longevous Disciple
- 2-Pc: Increases Max HP by 12%.
- 4-Pc: When the wearer is hit or consumes HP (self or ally), CRIT Rate increases by 8% for two turns, stacking up to 2 times.
Planar Ornaments
Top choices for Mydei include Bone Collection: Serene Demense or Rutilant Arena.
Bone Collection: Serene Demense
- 2-Pc: Increases Max HP by 12%. When Max HP is≥ 5000, it increases the wearer’s and their memo sprite’s CRIT DMG by 28%.
Rutilant Arena
- 2-Pc: Increases CRIT Rate by 8%. When CRIT Rate ≥ 70%, damage dealt by Basic ATK and Skill increases by 20%.
Stats Priority
Main Stats:
- Body: CRIT DMG (Major Trace 3, relics, and planar ornaments already provide sufficient CRIT Rate)
- Feet: SPD or HP%, depending on team composition
- Planar Sphere: Imaginary DMG% or HP%
- Link Rope: HP%
Substats:
- For Fast Mydei (SPD-focused): SPD ≥ 134, then CRIT Rate/CRIT DMG, then HP%
- For Slow Mydei: CRIT Rate/CRIT DMG first, followed by HP%
Mydei Recommended Teams
Mydei excels as a hypercarry DPS in teams that complement HP-scaling damage. He works best alongside supports who enhance survivability and amplify his damage, such as Sunday, Sparkle, Remembrance Trailblazer, and the upcoming Tribbie.
Since Mydei’s kit consumes significant HP to maximize damage and quickly charge his Enhanced Skill 2, at least one source of sustain is crucial. Sunday synergizes exceptionally well, boosting DMG%, CRIT DMG, SP generation, and energy, allowing Mydei to heal more frequently via his Ultimate. Sparkle functions similarly but is better paired with a slower Mydei due to her 50% Advance Forward compared to Sunday’s 100%. Remembrance Trailblazer also excels with True DMG, CRIT DMG, SP gain, and Advance Forward. Tribbie enhances team RES PEN and applies a Vulnerability field, benefiting HP-scaling DPS.
For sustain, consider Huohuo (energy generation), Gallagher (heals when allies attack in Besotted state), or Luocha (heals the team whenever any ally attacks).
Team Composition Example:
- Main DPS: Mydei
- Supports: Tribbie / Remembrance Trailblazer / Sparkle / Sunday
- Sustain Options: Huohuo / Gallagher / Luocha
Frequently Asked Questions
What role does Mydei play in a team?
Mydei is a hypercarry HP-scaling DPS. He excels at dealing massive damage through his Skill and Ultimate while maintaining survivability with self-sustain mechanics and his Enhanced State (Vendetta).
Which Light Cone is best for Mydei?
The top Light Cone choice focuses on Max HP and Incoming Healing while consuming HP to boost damage, helping him meet Major Trace 3 requirements and charge his Enhanced Skill faster. Other viable options provide CRIT Rate, CRIT DMG, or additional damage based on the percentage of HP.
What relic sets are recommended?
Scholar: Lost in Erudition and Longevous Disciple are the best relic sets. Scholar enhances Skill and Ultimate damage, while Longevous Disciple improves survivability and CRIT Rate when HP is consumed or when taking damage.
Who are Mydei’s best teammates?
Supports that enhance HP-scaling DPS work best, such as Sunday, Sparkle, Remembrance Trailblazer, and Tribbie. Sustaining HP through allies like Huohuo, Gallagher, or Luocha is essential for maximizing his damage output.
How should I prioritize traces?
Focus on Skill > Ultimate > Talent > Basic ATK. Primaryr Traces like Earth and Water, Thirty Tyrants, and Bloodied Chiton significantly improve survivability and CRIT Rate.
Is Mydei suitable for new players?
Mydei requires careful management of HP and team composition to reach its full potential, making it more suitable for intermediate to advanced players familiar with HP-scaling mechanics and hypercarry strategies.
Conclusion
Mydei is a formidable HP-scaling DPS in Honkai: Star Rail, capable of dealing massive damage while maintaining impressive survivability through his Enhanced State and self-sustain mechanics. By carefully selecting the right Light Cones, relics, and planar ornaments, and prioritizing his Skill and Ultimate upgrades, players can unlock his full potential. Pairing him with compatible supports like Sunday, Sparkle, Remembrance Trailblazer, or Tribbie, along with reliable sustain units, ensures consistent performance in hypercarry team compositions.
