Mydei 
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.
HP
ATK
DEF
SPEEDMain DPS Build
Best Light Cone
Mydei Best Stats
Mydei Best Substats
Mydei Best Teams
Mydei • Trailblazer (Ice) • Pela • Lynx (F2P)
Free-to-play oriented team. Use Remembrance Trailblazer (Ice) for CRIT/True DMG buffs and Pela for DEF shred. Lynx is a reliable free-to-play sustain — raises Mydei's Max HP and increases his chance to be hit, which synergizes with his HP-consumption mechanics.
Mydei • Cyrene • Cerydra • Hyacine
One of Mydei's best teams: Cyrene provides general DMG buffs while Cerydra buffs Skill DMG. When using Cyrene, Hyacine is recommended as sustain (Chrysos Heir to increase Mydei's HP). If Cyrene isn't available, other Abundance/healers (e.g., Luocha, Gallagher) are viable substitutes.
Castorice • Mydei • Tribbie • Gallagher
Castorice-centered team where Mydei functions as a Sub-DPS to help build Newbud for Castorice's Ultimate. Tribbie buffs both carries, and Gallagher supplies steady healing through Besotted.
Skills
Deals Imaginary DMG equal to 0.25% of Mydei's Max HP to one designated enemy.
Consumes HP by an amount equal to 0.5% of Mydei's current HP. Deals Imaginary DMG equal to 0.45% of Mydei's Max HP to one designated enemy and Imaginary DMG equal to 0.25% of Mydei's Max HP to adjacent targets. If the current HP is not sufficient, using Skill reduces Mydei's current HP to 1.
Restores HP by 15% of Mydei's Max HP and accumulates 20 Talent's Charge point(s). Deals Imaginary DMG equal to 0.96% of Mydei's Max HP to one designated enemy, and deals Imaginary DMG equal to 0.6% 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.
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 0.15% of Mydei's Max HP, and advances action by 100%. While the "Vendetta" state is active, Max HP increases by 0.5% 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 0.5% of his Max HP.
Gain 1 extra turn that won't expend your remaining turns when taking action. During this extra turn, no Ultimate can be used.
An ally will be incapacitated once their HP is reduced to 0.
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 0.8% 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.
Traces
Eidolon
Increases the DMG multiplier dealt by "Godslayer Be God" to the primary target by
During "Vendetta," the DMG dealt by Mydei ignores
Skill Lv. +2, up to a maximum of Lv.
While in "Vendetta," increases CRIT DMG by
Ultimate Lv. +2, up to a maximum of Lv.
When entering battle, immediately enters the "Vendetta" state, and lowers the Charge required for "Godslayer Be God" to