Mydei is an output-type character who gains power by consuming his own HP. After consuming a certain amount of HP, Mydei enters the [Vendetta] state, gaining enhancements and automatically unleashing empowered combat skills. In this state, even if Mydei suffers a fatal blow, he will not fall into a unable-to-battle condition.
For players seeking an effective Mydei build, this guide offers a comprehensive overview of essential strategies. It is advisable to gather the necessary Stellar Jades in advance via Enjoygm’s secure platform!
Who is Mydei?
Mydei is an Imaginary-type character following the Path of Destruction. As a unit who consumes his own HP to deal damage, his core gameplay revolves around using his Skill to burn HP and accumulate [Charge] points. Upon reaching 100 Charge, he enters the [“Vendetta” state], automatically launching enhanced AoE attacks. Although Mydei sacrifices HP for damage, he possesses remarkable self-sustainability—boasting a high base HP, built-in healing, Crowd Control immunity, and a unique anti-knockback mechanism. As long as he remains in the [“Vendetta” state], Mydei cannot be defeated, granting him significantly higher survival margin than other main DPS characters.
- Character Evaluation:
① Straightforward and user-friendly mechanics with an extremely low skill ceiling. He can easily clear Forgotten Hall even on full auto-battle.
② A highly resilient main DPS – in battle, his max HP can exceed 12,000+, making him an incredibly durable tank. Combined with his unique cheat-death mechanic, he offers much higher survival tolerance compared to other carries.
③ Optimized for auto-play – Mydei can use his Ultimate to mark enemies, directing his enhanced Skills to prioritize specific targets. This alleviates a common pain point in auto-combat where skill targeting is often suboptimal.
Skill Priority
Skill > Ultimate > Talent > Basic Attack
Mydei’s core mechanic is trading his HP to stack Talent charges. At 100 charges, he enters the “Vendetta” state, upgrading his Skill to an enhanced version. While in this state, further stacking to 150 charges allows him to unleash an even more powerful enhanced Skill. Additionally, his extra ability converts excess HP into CRIT Rate, which is fully utilized at 8000 HP.
Mydei Materials
- Ascension Materials
Fear-Stomped Flesh x 15
Courage-Torn Chest x 15
Glory-Aspersed Torso x 15
Harbinger of Strife x 65
Credit x 308,000
- All Trace Node Materials
Borisin Teeth x 18
Fear-Stomped Flesh x 41
Lupitoxin Sawteeth x 69
Courage-Torn Chest x 56
Moon Rage Fang x 139
Glory-Aspersed Torso x 58
Auspice Sliver x 12
Tracks of Destiny x 8
Credit x 3,000,000
Best Light Cone for Mydei
To best amplify Mydei’s kit, equip him with Light Cones that benefit from or enhance his HP-cost mechanics.
| Light Cone | Stats | Wht It Fits |
| Flame of Blood, Blaze My Path 5★ (Signature) | HP: 1376ATK: 476DEF: 397 | When paired with teammates like Sunday or the RMC, it’s easy for CRIT Rate to exceed the cap. |
| The Unreachable Side 5★ | HP: 1270ATK: 582DEF: 331 | This light cone quickly stacks up to 5 layers. When attacking 3+ targets, it provides additional SPD buffs, enhancing field presence and action frequency. |
| Ninja Record: Sound Hunt 4★ | HP: 1058ATK: 476DEF: 265 | Top-tier 4-star option.Relatively straightforward to achieve the 8000 HP threshold. |
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Best Relics and Planar Ornaments for Mydei
- Outer Relics
Scholar Lost in Erudition (Best-in-Slot)
Critical Rate Boost: +8% CRIT Rate for more consistent damage
Core Damage Enhancement: +20% increased damage to both Skill and Ultimate abilities – his primary damage sources
Longevous Disciple
Substantial HP increase for enhanced durability
Conditional CRIT boost that activates when losing HP
- Inner Relics (Planar)
Bone Collection’s Serene Demesne (Primary Recommendation)
Direct HP increase for better survivability and damage scaling
Significant +28% CRIT DMG boost
Rutilant Arena
Solid CRIT Rate increase for more consistent damage
Direct Skill DMG enhancement for his primary attack method
Main Stats and Sub Stats Priority
| Body | HP / CRIT DMG |
| Feet | SPD / HP |
| Sphere | HP / Imaginary DMG |
| Rope | HP |
| Sub-Stats Priority | HP > SPD > CRIT DMG / ATK DMG |
Best Teams for Mydei
| Best Team | Mydei + Cyrene + Cerydra + Hyacine / Trailblazer (Ice) | Mydei’s optimal team composition pairs him with Cyrene, who provides significant damage buffs, and Cerydra, who specifically enhances Skill DMG. To complete this setup, Hyacine is the ideal sustain unit. As a Chrysos Heir, she can increase Mydei’s HP, further amplifying his damage potential. |
| Dual DPS Team | Mydei + Castorice + Tribbie + Gallagher | Mydei serves as an effective Sub-DPS for Castorice, whose HP consumption fuels Castorice’s Ultimate by generating Newbud stacks. Tribbie simultaneously buffs both units, while Gallagher provides sustained healing through his Besotted debuff. |
Recommended Eidolons
- E1 | ★★★★★ (Excellent)
The prime stopping point for spenders. Godslayer Be God now deals increased damage to the main target and strikes all enemies on the field.
- E2 | ★★★★☆ (Good)
Mydei gains more Charge from healing and ignores enemy DEF while in the Vendetta state.
- E4 | ★★★★☆ (Good)
While Vendetta is active, Mydei receives a CRIT DMG boost and restores 10% HP whenever attacked.
- E6 | ★★★★★ (Excellent)
Mydei immediately enters the Vendetta state at battle start and requires less Charge to activate Godslayer Be God.
Conclusion
E1 is Mydei’s most pivotal constellation, arguably the most transformative first constellation for any main DPS character. Under identical configurations in Chaos Dungeon, E1 is greater than E0. Its priority far exceeds obtaining support characters or his signature Light Cone.
For a faster Mydei build, don’t forget to use current HSR redemption codes available via official outlets for supplementary rewards.
