MementoMori's 【The Witch of Lost Souls】Armstrong is one of the witches players will frequently encounter across the game. Read on to learn how to make use of the game's witches and mechanics to defeat them in battle.

Armstrong
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How to Beat 【The Witch of Lost Souls】Armstrong

How to Beat 【The Witch of Lost Souls】Armstrong Overview

【The Witch of Lost Souls】Armstrong
PvE Rank	PvP Rank

Base Rarity	Soul	Type	Role
SR (Limited)	Chaos	Sniper	Attacker

Amstrong is a very tough witch to beat, as not only can she deal immense amounts of damage with her active skills, but she also becomes highly resistant to damage because of her 50% damage cut. The more critical hits she makes, the higher her damage becomes and the less damage she takes from enemies.

【The Witch of Lost Souls】Armstrong Strengths and Weaknesses

【The Witch of Lost Souls】Armstrong Skill Analysis

Heavy Critical Attacker With Damage Multipliers

Blitzkrieg Operation

Volley Fire

Skill Effects Summarized

Skill	Skill Effect
Blitzkrieg Operation	Level 1 (Unlocks by default) Deals 1 physical attack equal to 500% of Armstrong’s ATK to the 2 enemies with the highest ATK.
	Level 2 (Unlocks by level 81) Additionally, if a target is not defeated by this skill, it reactivates (1 reactivation max).
	Level 3 (Unlocks by level 161) The physical attack’s damage becomes equal to 600% of her ATK.

Skill	Skill Effect
Volley Fire	Level 1 (Unlocks by level 11) Deals 6 physical attacks equal to 250% of Armstrong’s ATK to enemies at random. If a target’s remaining HP percentage is 50% or higher, the physical attack’s damage to that target is multiplied by 1.5.
	Level 2 (Unlocks by level 21) Additionally, if a target’s remaining HP percentage is below 50%, the attack to that target is guaranteed to hit.
	Level 3 (Unlocks by level 101) The number of physical attacks becomes 8.
	Level 4 (Unlocks by level 181) If a target’s remaining HP percentage is 50% or higher, the physical attack’s damage to that target is multiplied by 2.

Armstrong first targets two of the witches with the highest ATK in your party and fires off powerful single-hit attacks, which then reactivate if they don't get defeated outright. If your attackers survive that, she'll then fire off a second skill that not only has a high attack count, but whose damage is multiplied by 1.5 if their HP is below 60%.

Tough To Kill At The Start, Exchanges Durability For Damage Later

Parabellum

Elastic Defense

Skill Effects Summarized

Skill	Skill Effect
Parabellum	Level 1 (Unlocks by level 41) Increases Armstrong’s critical hit damage by 20% (cannot be dispelled).
	Level 2 (Unlocks by level 121) Additionally, at the start of the turn, increases the chance to deal a critical hit of Armstrong and the ally with the highest SPD by 20% for 2 turns. This skill activates 1 time every 4 turns.
	Level 3 (Unlocks by level 201) The increases in Armstrong’s critical hit damage and all targets’ chance to deal a critical hit each become 40%.

Skill	Skill Effect
Elastic Defense	Level 1 (Unlocks by level 61) When Armstrong is attacked, the attack’s damage is cut by 30%. If she attacks and deals a critical hit, the potency of damage cutting decreases by 2%. The potency of damage cutting is further decreased by 2% for each time she deals a critical hit (the potency of damage cutting will not drop below 10%).
	Level 2 (Unlocks by level 141) Additionally, at the start of each turn, if she attacked and dealt a critical hit in the previous turn, this skill increases her ATK by 2% (cannot be dispelled). Her ATK is further increased by 2% for each time she dealt a critical hit (20% max).
	Level 3 (Unlocks by level 221) The damage from the enemy’s attack is cut by 50%. The potency of damage cutting decreases by 2% for each time she deals a critical hit (the potency of damage cutting will not drop below 30%). The amount her ATK is further increased by becomes 3% (30% max).

Armstrong's passive skills meanwhile increase her attack power and survivability, with Parabellum giving up to 40% CRIT to both her and the ally with the highest SPD. Meanwhile, Elastic Defense cuts up to 50% of the damage she receives and only grows further as she lands more critical hits.

Witches to Beat 【The Witch of Lost Souls】Armstrong

【The Witch of Lost Souls】Armstrong Hard Counters

Ophelia

Artie

Ophelia can tank her hits and do damage to Armstrong through her Counter stat. This may also be possible with other witches that do Counter. Artie and other witches who raise their chances to resist critical hits can also deny Armstrong the opportunity to grow her damage and damage cut even further.

Lunalynn

Soltina

It is also possible to deal with Armstrong by inflicting movement-hindering debuffs on her like Lunalynn's Silence and Soltina's fainting. This will give your team more time to deal damage to Amstrong and take her out.

【The Witch of Lost Souls】Armstrong General Counters

Luke	Yuni	Eir
Primavera	Lea	Claudia

【The Witch of Lost Souls】Armstrong Sample Counter Teams

Ophelia Luna Counter Team

Buffer	Buffer	Debuffer	Tank	Attacker
Artie	Merlyn	Lunalynn	Ophelia	Witch Illya

Lunalynn inflicts Silence on Armstrong, while Ophelia and Artie's tank hits and Merlyn provides CRIT boosts. Illya's God's Curse version meanwhile holds on tight until she can start spamming her active skills.

Witches Not To Use Against 【The Witch of Lost Souls】Armstrong

Cordie

Florence

Cordie, Florence, and other attackers that can be considered glass cannons can lose out to Armstrong when it comes to how much damage the latter can take and how soft they are by comparison. Without proper support, they won't last long in a straight fight with her.

Tips for Beating 【The Witch of Lost Souls】Armstrong

Focus on Debuffing Her, Resisting Critical Hits

The only way you can hold Armstrong back is to Faint her, Silence her, and other movement-hindering debuffs you can use in order to keep her from attacking and keeping your team alive for longer while you cause damage to her team.

MementoMori Related Guides

Character Build Lists

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

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