Honkai Star Rail: Mydei Best Build Guide

Mydei is the 5-star Imaginary DPS unit that scales on HP to deal a ton of damage. He is a unit that basically plays himself and is an improvement to Blade. If you love playing units with massive HP pools that also take a ton of damage, then Mydei might just be a great addition to your roster. In this guide, we’ll teach you how to build him so that you get the most out of his damage.

Mydei Overview

	Name	Mydei
	Rarity	5-star
	Element	Imaginary
	Path	Destruction
	VA	Youhei Azakami (JP)
Stats for Level 80
HP		1552
ATK		426
DEF		194
Speed		95

Mydei is a 5-star Imaginary unit from the Path of Destruction. He is a character that scales off of HP% and is overall a huge upgrade over Blade. As a unit, Mydei plays by stacking a ton of HP, preferably just over 8000, so that you can get the most out of his bonus ability [Bloodied Chiton]. By having Mydei at 8k+ HP, you guarantee that he gets 48% CRIT Rate for free, as well as a faster charge on his Talent, which happens to be the main driver behind his kit. So in short, you want to stack Mydei with as much HP as possible so that you can get the most out of him.

When it comes to his combat interactions, the thing with Mydei is that you don’t really get to play him. Once battle starts, Mydei starts building up stacks of [Charge]. Once you reach 100 Charge, Mydei enters what is known as the [Vendetta] state. Once he’s in this state, you can forget about playing Mydei because he literally begins playing himself. Whenever his turn comes around, he does one of two attacks depending on the number of charges he has stacked up, and the only action you have is pressing his ultimate whenever it’s up. That is mostly it. This makes Mydei quite easy to play and very viable for a ton of auto-battle comps, but it is also not fun at all, as you don’t really get to play the unit.

At the end of the day, Mydei is a really simple character. All you need to do is stack HP on him, and he plays himself. He is also an amazing upgrade over Blade, so if you’ve been feeling down due to Blade underperforming in the recent updates, then Mydei might just light the spark again!

Mydei Best Light Cones

Rank	Light Cone	Effect
1	Flame of Blood, Blaze My Path	Increases the wearer's Max HP by 18% and Incoming Healing by 20%. When using Skill or Ultimate, consumes HP equal to 6% of the wearer's Max HP and increases the DMG dealt by this attack by 30%. If this effect's consumed HP is greater than 500, the DMG additionally increases by 30%. If the current HP is not sufficient, this effect reduces the wearer's current HP down to 1.
2	The Unreachable Side	Increases the wearer's CRIT Rate by 18% and increases their Max HP by 18%. When the wearer is attacked or consumes their own HP, their DMG increases by 24%. This effect is removed after the wearer uses an attack.
FREE TO PLAY
3	Ninja Record: Sound Hunt	Increases the wearer's Max HP by 12%. When losing or restoring this unit's HP, increases CRIT DMG by 18%, lasting for 2 turn(s). This effect can only trigger once per turn.

As far as Light Cones are concerned, there is no dispute that Mydei’s best in slot is his signature light cone, the [Flame of Blood, Blaze My Path]. This light cone has amazing stats, as well as a ridiculous effect that further boosts Mydei’s HP and overall damage. Having said that, there are also some decent F2P options that you can choose from for Mydei, so don’t worry!

Mydei Best Relics

Relic Set
Scholar Lost in Erudition x4
Main Stats
Body	Feet
CRIT DMG% / HP%	Speed
Substat priority
HP% (until 8k) > CRIT Rate = CRIT DMG
Planetary Set
Bone Collection's Serene Demesne x2
Main Stats
Phanar Sphere	Link Rope
HP%	HP%
Substat priority
HP% (until 8k) > CRIT Rate = CRIT DMG

When it comes to relics, you generally want to aim for 4 pieces of the [Scholar Lost in Erudition] set thanks to its CRIT Rate boost and damage increase on a unit’s Skill, which works great for Mydei considering almost all of his damage comes from his skill’s enhanced attacks. As for the planetary set, here you have two choices, which are the [Rutilant Arena] and the [Bone Collection’s Serene Demense]. Both are great options for Mydei, so it really just boils down to which set you have more of and if you have the right pieces.

Skill Priority

Lastly, for skill priority, you first want to focus on Mydei’s Skill, followed by his Ultimate, Talent, and lastly Basic Attacks. As for traces, you want to first get his A2, then A6, and finally his A4.