Mydei is an Imaginary-element character who follows the Path of Destruction. His attacks scale with his Max HP, and he possesses the ability to survive fatal blows. His gameplay centers around accumulating Charge by losing HP and taking hits, which eventually triggers his Vendetta state. While in Vendetta, Mydei’s skills are enhanced, and his survivability increases significantly. He can be built as a hypercarry focused on high damage output or flexed into a variety of team compositions, making him a versatile and valuable addition to any player’s roster.
Best Cavern Relics
(2) Increases CRIT Rate by 8%.
(4) Increases DMG dealt by Skill and Ultimate by 20%. After using Ultimate, additionally increases the DMG dealt by the next Skill by 25%.
The bulk of Mydei’s damage comes from his Skill and Enhanced Skill, making this set the best option for boosting both his Skill and Ultimate damage.
(2) Increases Max HP by 12%.
(4) When the wearer is hit or has their HP consumed by an ally or themselves, their CRIT Rate increases by 8% for 2 turn(s) and up to 2 stacks.
This set specifically focuses on boosting Mydei’s HP, and since he consumes HP to use his Skill, it can also grant him a Crit Rate bonus. However, its overall damage output is lower compared to what the Scholar Lost in Erudition set provides.
Best Planar Ornaments
(2) Increases the wearer's Max HP by 12%. When the wearer's Max HP is 5000 or higher, increases the wearer's and their memosprite's CRIT DMG by 28%.
Equipping this set on Mydei enhances both his damage and durability, making it a well-rounded choice for balanced builds.
(2) Increases the wearer's CRIT Rate by 8%. When the wearer's current CRIT Rate reaches 70% or higher, the wearer's Basic ATK and Skill DMG increase by 20%.
Meeting this set effect’s condition grants Mydei a bonus to his Skill damage. However, the Basic Attack bonus offers little value, as he rarely uses Basic Attacks.
Best Stats
Body
CRIT DMG
Boots
SPD
Sphere
Imaginary DMG Boost
Rope
HP%
Substats
HP% / CRIT DMG / SPD / CRIT Rate
info
Mydei’s main stat priority is HP%, as both his damage and survivability scale with it. After that, focus on Crit Rate and Crit Damage—aiming for a 1:2 ratio—to further boost his damage output. Speed is also important for maintaining his Vendetta uptime, with an ideal range of 120–135. Imaginary DMG% and Effect RES are good secondary options, offering additional damage or durability depending on the team’s needs.
Best Light Cones
SourceLight Cone Event Warp
Vista
Increases the wearer's Max HP by 18~30% and Incoming Healing by 20~40%. When using Skill or Ultimate, consumes HP equal to 6.0~8.0% of the wearer's Max HP and increases the DMG dealt by this attack by 30~50%. If this effect's consumed HP is greater than 500, the DMG additionally increases by 30~50%.
If the current HP is not sufficient, this effect reduces the wearer's current HP down to 1.This is Mydei’s signature Light Cone, greatly enhancing both his damage and durability. It also provides bonus damage whenever the HP consumed by his Skill exceeds 500.
SourceStellar Convergence, Light Cone Event Warp
Unfulfilled Yearning
Increases the wearer's CRIT rate by 18~30% and increases their Max HP by 18~30%. When the wearer is attacked or consumes their own HP, their DMG increases by 24~40%. This effect is removed after the wearer uses an attack.This Light Cone boosts Mydei’s Crit Rate and Max HP, increasing both his damage and durability. It also grants bonus damage against enemies below 50% HP, helping him finish off low-health targets quickly.
SourceEvent, Herta's Store
Curtains Up!
Increases the wearer's Max HP by 12~24%. When losing or restoring this unit's HP, increases CRIT DMG by 18~36%, lasting for 2 turn(s). This effect can only trigger once per turn.This Light Cone’s effect suits Mydei well, as he consumes HP instead of a Skill Point to activate his Skill. When he does, he gains Crit DMG that is immediately applied upon Skill use.
Massacre
Increases the wearer's CRIT Rate by 12~20%. The Skill DMG and Ultimate DMG dealt by the wearer increases by 24~40%.Mydei benefits from this Light Cone, as it primarily boosts the damage of both his Skill and Ultimate.
SourceStellar Warp, Departure Warp, Character Event Warp, Light Cone Event Warp
Spare No Effort
Increases DMG dealt by the wearer by 20~40%. The wearer also deals an extra 20~40% of DMG to enemies whose current HP percentage is equal to or higher than the wearer's current HP percentage.This is also a good option for Mydei, as it boosts his overall damage and grants additional damage when attacking enemies with equal or higher HP than his own.
Scholar Lost in Erudition
Longevous Disciple
Bone Collection's Serene Demesne
Rutilant Arena
Flame of Blood, Blaze My Path5★
The Unreachable Side5★
Ninja Record: Sound Hunt4★
A Trail of Bygone Blood4★
A Secret Vow4★