Eir Builds: Best Runes and Team Comps

MementoMori's Eir is an Azure Soul Sniper-type SR (Limited) Rarity Witch. Learn more about this Witch's basic info, skills, arcana, or which gacha you can find her in!

Eir
Best Builds	How To Beat Eir
Story and Profile

Eir Basic Info

Eir Overview

Eir
PvE Rank	PvP Rank

Base Rarity	Soul	Type	Role
SR (Limited)	Azure	Sniper	Attacker/Debuffer

Eir Analysis

Support Debuffer

Tranquilizing Dart

Silver Weaver

Witch Hunter

Eir's main use is a debuffer in your party that will inflict Sleep, Bleed, and CRIT RES debuffs on your enemies, making them more vulnerable to your main attackers.

Her first active skill, Tranquilizer Dart can decrease the CRIT RES of the enemy directly in front of her, as well as inflict Sleep on them for two turns, which leaves them open to attack from foes with high CRIT and PM DEF Break.

Meanwhile, her second skill, Silver Weaver, inflicts Bleed on the target if they're inflicted with Sleep or another action hindering debuff, which deals damage equivalent to half of Eir's ATK

Finally, her second passive skill Witch Hunter increases her basic attack, as well as increases her chances of inflicting Sleep on her targets.

Can Be Moderately Tanky With Shield Buff

Hunter’s Integrity

In case Eir is hit with a direct attack, she can bear it with her first passive skill, Hunter's Integrity, which gives her a Shield equivalent to 500% of her ATK stat every turn if there are no enemies that have action-hindering debuffs.

Eir Best Runes

Give Eir SPD, Debuff ACC, EVD, and Debuff RES Runes

Since you'll be using Eir mainly as a debuffer, it would be best to give her SPD runes so she can inflict her debuffs quickly, followed by Debuff ACC, DEX, and ACC runes.

For defensive runes, give her EVD, CRIT RES, Debuff RES, and STA runes to increase her survivability in battle.

Eir Best Team Comps

Debuff Hit Team

Buffer	Attacker	Debuffer	Tank	Debuffer
Merlyn	Cordie	Eir	Soltina	Primavera

Eir's debuffs make her fairly versatile. Position her wherever she faces a particularly tough enemy. For damage dealers, get Cordie and perhaps Primavera (though she can be switched out for another witch like Amleth instead), to be supported by Merlyn. Soltina meanwhile will take hits for the team with her Multi-Barriers.

Eir Skills and Stats

Tranquilizing Dart

Skill	Type	Cooldown
Tranquilizing Dart	Active	4

Skill Effect

Level 1 (Unlocks by Default) Eir takes aim at the enemy, firing a tranquilizing dart that can cause even the largest of beasts to fall unconscious. Deals 1 physical attack equal to 580% of her ATK to the enemy directly in front of her and 1 enemy adjacent to that target. This skill has a 50% chance of decreasing the target’s chance to resist a critical hit by 40% and inflicting ［Sleep］ on them for 2 turns. These 2 effects are treated as 1 debuff, and are both dispelled when the target is attacked. Level 2 (Unlocks by level 81) The chance to inflict ［Decreased Chance to Resist a Critical Hit］ and ［Sleep］ becomes 70%. Level 3 (Unlocks by level 161) The physical attack’s damage becomes equal to 880% of her ATK.

Silver Weaver

Skill	Type	Cooldown
Silver Weaver	Active	4

Skill Effect

Level 1 (Unlocks by level 21) Eir aims for her prey’s vitals, stopping them in their tracks. This is the most basic, yet most effective hunting technique... whether her prey be beast, or witch. Activates when there is 1 or more enemy afflicted with an effect from an action hindering debuff. Deals 1 physical attack equal to 480% of Eir’s ATK to all enemies afflicted with effects from action hindering debuffs (5 targets max) (if there are more than 5 targets, 5 out of those targets will be selected at random). If Eir does not fulfill the activation requirement, she instead deals 1 basic attack. Level 2 (Unlocks by level 41) Additionally inflicts ［Bleed］ on all targets for 1 turn. Each turn, at the start of the action phase, ［Bleed］ deals damage equal to 50% of Eir’s ATK. Level 3 (Unlocks by level 121) The physical attack becomes guaranteed to hit. Level 4 (Unlocks by level 181) The physical attack’s damage becomes equal to 880% of her ATK.

Hunter’s Integrity

Skill	Type	Cooldown
Hunter’s Integrity	Passive	-

Skill Effect

Level 1 (Unlocks by level 11) Seeing her weakened prey, Eir mercifully puts a swift end to their struggle. A testament to the hunter’s integrity imparted by her grandfather. At the start of each turn, if there is 1 or more enemy afflicted with an effect from an action hindering debuff, this skill increases Eir’s SPD by 15%, and ATK by 30% for 1 turn (cannot be dispelled). Level 2 (Unlocks by level 101) At the start of each turn, additionally, if there are no enemies afflicted with effects from action hindering debuffs, grants Eir ［Shield］ equal to 500% of her ATK for 1 turn (cannot be dispelled). Level 3 (Unlocks by level 201) The amount her SPD increases by becomes 30%. The amount her ATK increases by becomes 60%.

Witch Hunter

Skill	Type	Cooldown
Witch Hunter	Passive	-

Skill Effect

Level 1 (Unlocks by level 61) “I’ve decided that if becoming a pawn, even for demons, allows me to protect my little sister...I’ll do it.” Strengthens Eir’s basic attack. When she deals a basic attack, she instead deals 1 physical attack equal to 150% of her ATK to 2 random enemies. Level 2 (Unlocks by level 141) Additionally has a 30% chance to inflict ［Sleep］ on all targets for 1 turn. ［Sleep］ is dispelled when a target is attacked. Level 3 (Unlocks by level 221) The physical attack’s damage becomes equal to 200% of her ATK.

Eir Stats and Potential

Max Stats (Lv. 240)

HP	4,855,920
DEF	7
DEF Break	0
SPD	2,892
PM. DEF Break	0
P. DEF	624,332
M. DEF	548,025
ACC	312,166
EVD	357,257
CRIT	357,257
CRIT RES	242,796
CRT DMG Boost	0
P. CRIT DMG Cut	0
M. CRIT DMG Cut	0
Debuff ACC	274013
Debuff RES	0
Counter	0
HP Drain	0

Max Potential (Lv. 240)

STR	624,332
MAG	548,025
DEX	714,514
STA	485,592

Eir Exclusive Weapon

M28 Magic Tracking Rifle

Level 1 (Unlocked by getting Eir's Unique Weapon) Strengthens Tranquilizing Dart. The targets of this skill become the enemy directly in front of her and the 2 enemies adjacent to that target. Level 2 (Unlocks at UR Rarity) Strengthens Silver Weaver. The number of turns of ［Bleed］ becomes 2. Level 3 (Unlocks at LR Rarity) Strengthens Tranquilizing Dart. The physical attack’s damage becomes equal to 980% of her ATK.

Eir Available Gachas

Eir Invoke Banners

List of Gacha Banners
Prayer of The Fleeting	Invocation of Chance

Eir Arcana

Capricornus's Bullet

Eir

Dian

MementoMori Related Guides

List of All Character Builds	List of All Character Profiles
List of All How to Beat Articles

Character Build Lists

Character Builds by Rarity
SR Characters	R Characters
N Characters
Character Builds by Soul
Azure Characters	Crimson Characters
Amber Characters	Emerald Characters
Radiance Characters	Chaos Characters
Character Builds by Type
Warrior Type	Sniper Type
Sorcerer Type

All SR Rarity Character Builds

Soltina	Amleth	Fenrir
Florence	Moddey	Sabrina
Freesia	Amour	Rean
Dian	Ivy	Merlyn
Cordie	Nina	Mertillier
Mimi	Tropon	Hathor
Olivia	Primavera	Natasha
Lunalynn

All SR (Limited) Rarity Character Builds

Eureka	Liselotte	Matilda
Yuni	Paladea	Eir
Morgana	Apostle Rosalie	Asahi
Alexandra	Minasumari	Kaguya
Summer Nina	Summer Amleth	Milla
Aine	Serruria	Tama
Meria	Festive Natasha	Sonya
Gil’uial	Winter Tropon	Fenny
Stella	Sivi	Belle
Summer Cordie	Priscilla	Artie
Chiffon	Luke	Summer Sabrina
Fia	Sophia	Lea
Claudia	Tainted Iris	Summer Moddey
Richesse	Carol	Winter Amour
Veela	Fortina	Cerberus
Elfriede	Rusalka	Armstrong
Witch Illya	Ophelia	A.A.
Valeriede