Unlocking Mydei’s Eidolons in Honkai Star Rail is a strategic move that significantly enhances his capabilities as a character—especially as he powers up at various levels. This 5-star Destruction character boasts impressive skills such as “Godslayer Be God,”providing critical damage boosts in his Vendetta state. Since resources are limited, Trailblazers should carefully evaluate which of Mydei’s Eidolons provide the most substantial benefits to maximize effectiveness in battle.
Below, we present a detailed ranking of each Mydei Eidolon, aiding players in making informed decisions about their investments.
Comprehensive Ranking of Mydei’s Eidolons in Honkai Star Rail
6) War Chisels Flesh of Flame

Mydei’s fifth Eidolon, War Chisels Flesh of Flame, provides only a minor enhancement to his Ultimate and Talent levels. If you are not pursuing the character’s E6, unlocking this Eidolon may be an inefficient use of resources. Although his Ultimate can inflict tremendous damage, its cooldown limits regular use compared to his Skill.
Conversely, Mydei’s Talent can boost his damage output effectively, so players may find better value in his other Eidolons.
5) Honor Exalts Feast of Faith

This third Eidolon, Honor Exalts Feast of Faith, similarly enhances Mydei’s Skill and Basic levels. Due to its marginal damage increase, investing in this upgrade should not be a priority. However, if you possess enough Stellar Jades, unlocking this Eidolon could be beneficial for players aiming to optimize Mydei’s overall potential.
4) Siren Jolts the Laconic Lion

With the fourth Eidolon, Siren Jolts the Laconic Lion, players will find it easier to build Mydei. This Eidolon provides bonus CRIT DMG while Mydei is in his Vendetta state, in addition to healing upon taking damage. These effects enhance his damage potential and improve survivability—a critical factor, as Mydei’s health scaling can be a limitation.
Consider unlocking this Eidolon if you have extra Stellar Jades available, or alternatively, focus on his Light Cone if resources are tight.
3) Strife Beholds Cry of Dead

Ranking third, Strife Beholds Cry of Dead provides a significant boost by allowing Mydei to ignore 15% of enemy defense for his attacks in Vendetta state. Additionally, it converts 40% of healing into charge, facilitating more frequent skill activations. This Eidolon greatly enhances Mydei’s combat rotations and overall effectiveness, making it a worthy investment.
2) Frost Hones Spine of Steel

The first Eidolon, Frost Hones Spine of Steel, can drastically increase the effectiveness of Mydei’s enhanced Skill. Specifically, it raises the damage caused by “Godslayer Be God”by 30% to the main target, alongside dealing equivalent damage to adjacent foes. This enhancement is particularly advantageous in modes such as Pure Fiction, where opponents frequently cluster together, making the buff accessible with just one copy of Mydei.
1) Legacy Scales Mound of Blood

Achieving Eidolon 6 unlocks the full potential of Mydei with Legacy Scales Mound of Blood. Upon activation, he can immediately enter the Vendetta state without waiting for charges, allowing swift access to enhanced attacks right at the start of battle. Furthermore, activating the “Godslayer Be God”skill is reduced to only 100 points, facilitating consistent offensive maneuvers every other turn once this Eidolon is activated.