Mydei Profile, Skills, Traces and Eidolons

Introductions

Mydei is a 5★ character with the Imaginary element who follows the Path of Destruction.
Kremnos, the mist-shrouded city of chaos and war! Its royal lineage is tainted with patricide, and its god bears the name of calamity.
The undying Mydeimos, the lion apart from the rest. Chrysos Heir who seeks the Coreflame of Strife, must suffer a thousand deaths, be bathed in blood on the path home, and bear the madness of fate alone.
— Kingslayer be king, godslayer be god. Iron-hooves pound across the wilderness for the campaign, and must eventually soak in the blood of their homeland.

Skills

Basic ATK

Vow of Voyage

Single Target

Lv. 6

Energy gain: 20

Break: Main: 10.0

Deals Imaginary DMG equal to 50.0% of Mydei's Max HP to one designated enemy.

Skill

Deaths are Legion, Regrets are None

Blast

Lv. 10

Energy gain: 30

Break: Main: 20.0 / AoE: 10.0

Consumes HP by an amount equal to 50.0% of Mydei's current HP. Deals Imaginary DMG equal to 90.0% of Mydei's Max HP to one designated enemy and Imaginary DMG equal to 50.0% of Mydei's Max HP to adjacent targets.
If the current HP is not sufficient, using Skill reduces Mydei's current HP to 1.

Skill

Enhanced

Kingslayer Be King

Blast

Lv. 10

Energy gain: 30

Break: Main: 20.0 / AoE: 10.0

Consumes HP by an amount equal to 35.0% of Mydei's current HP. Deals Imaginary DMG equal to 110.0% of Mydei's Max HP to one enemy and Imaginary DMG equal to 66.0% of Mydei's Max HP to adjacent targets.
If the current HP is not sufficient, using Skill reduces Mydei's current HP to 1.
This ability will be automatically used.

Skill

Enhanced

Godslayer Be God

Blast

Lv. 10

Energy gain: 10

Break: Main: 30.0 / AoE: 20.0

Consumes 150 point(s) of Charge. Deals Imaginary DMG equal to 280.0% of Mydei's Max HP to one enemy and Imaginary DMG equal to 168.0% of Mydei's Max HP to adjacent targets.
This ability will be automatically used. While this ability is in use, Charge cannot be accumulated.

Ultimate

Throne of Bones

Blast | 160 energy cost

Lv. 10

Energy gain: 5

Break: Main: 20.0 / AoE: 20.0

Restores HP by 20.0% of Mydei's Max HP and accumulates 20 Talent's Charge point(s). Deals Imaginary DMG equal to 160.0% of Mydei's Max HP to one designated enemy, and deals Imaginary DMG equal to 100% of Mydei's Max HP to adjacent targets. Additionally, Taunts the target and targets adjacent to it, lasting for 2 turn(s). The next use of "Godslayer Be God" prioritizes attacking one designated enemy, and this effect only works on the latest target.

Talent

Blood for Blood

Enhance

Lv. 10

Energy gain: -

For each 1% of HP lost, accumulates 1 point of Charge (up to 200 points). When Charge reaches 100, consumes 100 points of Charge to enter the "Vendetta" state, restores HP equal to 25.0% of Mydei's Max HP, and advances action by 100%. While the "Vendetta" state is active, Max HP increases by 50.0% of the current Max HP and DEF remains at 0. At the start of this unit's turn, automatically uses "Kingslayer Be King."
When Charge reaches 150 points during the "Vendetta" state, Mydei immediately gains 1 extra turn and automatically uses "Godslayer Be God."
When receiving a killing blow during the "Vendetta" state, Mydei will not be knocked down, but will clear his Charge, exits the "Vendetta" state, and restores HP by 50.0% of his Max HP.

Technique

Cage of Broken Lance

Debuff

Energy gain: -

After using Technique, pulls in enemies within a certain area and inflicts Daze on them for 10 second(s). Dazed enemies will not actively attack ally targets.
If actively attacking Dazed enemies, when entering battle, deals Imaginary DMG equal to 80.0% of Mydei's Max HP to all enemies, and Taunts the targets, lasting for 1 turn(s). This unit accumulates 50 point(s) of Talent's Charge.

Major Traces

Earth and Water

Major trace

During the "Vendetta" state, Mydei will not exit the "Vendetta" state when receiving a killing blow. This effect can trigger 3 time(s) per battle.

Thirty Tyrants

Major trace

While in the "Vendetta" state, Mydei is immune to Crowd Control debuffs.

Bloodied Chiton

Major trace

When battle starts, if Mydei's Max HP exceeds 4000, for every 100 excess HP, Mydei's CRIT Rate increases by 1.2%, his Charge ratio from enemy targets' DMG increases by 2.5%, and his HP restored when receiving healing increases by 0.75%. Up to 4000 excess HP can be taken into account for this effect.

Minor Traces

CRIT DMG

+37.3%

+18.0%

SPD

Eidolons

Frost Hones Spine of Steel

Eidolon 1

Increases the DMG multiplier dealt by "Godslayer Be God" to the primary target by 30.0%. This ability now deals to all enemies Imaginary DMG equal to the DMG multiplier dealt to the primary target.

Strife Beholds Cry of Dead

Eidolon 2

During "Vendetta," the DMG dealt by Mydei ignores 15.0% of enemy targets' DEF. After he receives healing, converts 40.0% of the healed amount to Charge. The tally of the converted Charge cannot exceed 40 point(s). Resets this tally of Charge after any unit takes action.

Honor Exalts Feast of Faith

Eidolon 3

Skill Lv. +2, up to a maximum of Lv. 15.
Basic ATK Lv. +1, up to a maximum of Lv. 10.

Siren Jolts the Laconic Lion

Eidolon 4

While in "Vendetta," increases CRIT DMG by 30.0% and restores HP by 10.0% of this unit's Max HP after receiving attacks from enemy targets.

War Chisels Flesh of Flame

Eidolon 5

Ultimate Lv. +2, up to a maximum of Lv. 15.
Talent Lv. +2, up to a maximum of Lv. 15.

Legacy Scales Mound of Blood

Eidolon 6

When entering battle, immediately enters the "Vendetta" state, and lowers the Charge required for "Godslayer Be God" to 100 point(s).

Stats and Ascension Materials

Lv. 1

Base Stats

211

ATK

DEF

SPD

Ascension Materials

Credits

308000

Fear-Stomped Flesh

Courage-Torn Chest

Harbinger of Strife

Glory-Aspersed Torso

Mydei Voice Actors

Gabriel Warburton

Azakami Yohei

Zhao Chengchen

Ahn Hyo-min

Shikhu

Staff Author

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This guide has been written by Shikhu (Discord - Shikhu). A long-time Honkai Star Rail player since launch experiencing everything the game has to offer from building his favourite characters to clearing MoC, PF and AS on the regular.