【The Witch of Rust】A.A. Builds: Best Runes and Team Comps

MementoMori's 【The Witch of Rust】A.A. is a Chaos Soul Sorcerer-type SR (Limited) Rarity Witch. Learn about her basic info, skills, which gacha you can get her, or listen to her lament below!

【The Witch of Rust】A.A.
Best Builds	How To Beat
Story and Profile

【The Witch of Rust】A.A. Basic Info

【The Witch of Rust】A.A. Overview

【The Witch of Rust】A.A.
PvE Rank	PvP Rank

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

【The Witch of Rust】A.A. Analysis

Multi-Target Magical Skill

Skill	Skill Effect
Severing Rust	Level 1 (Unlocks by default) Deals 3 magical attacks equal to 520% of her ATK to enemies at random.
	Level 2 (Unlocks by level 81) The magical attacks’ damage becomes equal to 710% of her ATK.
	Level 3 (Unlocks by level 161) The number of magical attacks becomes 4.

Severing Rust is a vital, multiple-targeting magical skill that scales well with ATK. At level 3, it fires 4 attacks, each dealing 710% of your ATK, for a potential total of 2840% damage. While powerful, its effectiveness relies heavily on your ATK.

Damage and Healing Scale with MAG

Skill	Skill Effect
Limiter Release	Level 1 (Unlocks by level 11) Deals 1 direct attack equal to 200% of her MAG to 4 random enemies, and restores HP equal to 15% of this skill’s total damage to A.A.
	Level 2 (Unlocks by level 21) The direct attack’s damage becomes equal to 300% of her MAG.
	Level 3 (Unlocks by level 101) The amount her HP is restored by becomes equal to 20% of this skill’s total damage.
	Level 4 (Unlocks by level 181) The direct attack’s damage becomes equal to 420% of her MAG.

This multi-target skill hits four randomly selected enemies with 200%–420% MAG damage while healing the A.A. with 15%–20% of the damage dealt. It attacks numerous targets and requires a strong MAG. Level 4 allows it to deal 1680% MAG damage and heal for 336% MAG, making it an effective weapon for A.A.'s self-defense and offensive purposes.

【The Witch of Rust】A.A. Best Runes

Boost for A.A.'s Multi-Target Mayhem

ATK Runes are your best friend in Severing Rust, but don't forget about HP and CRIT Runes to stay alive. At higher levels, the multi-target skill prefers MAG Runes, while CRIT Runes can provide some burst. If you lack debuffs, consider PMDB and Debuff RES Runes if your opponents devastate you.

【The Witch of Rust】A.A. Best Team Comps

A.A. Attack Team

DPS	Support	DPS	Debuffer	Buffer
A.A.	Merlyn	Cordie	Mimi	Primavera

A.A. needed a team that could give her support so she could shine. Primavera's buffs can increase damage, while Merlyn cleanses and keeps them alive. A.A. becomes a DPS monster with Primavera and Merlyn, so add Cordie and Mimi for additional combat power and debuff.

【The Witch of Rust】A.A. Skills and Stats

Severing Rust

Skill	Type	Cooldown
Severing Rust	Active Magical Attack	4

Skill Effect
Level 1 (Unlocks by default) As A.A. effortlessly swings her saberwings, rust begins to overflow from them. Deals 3 magical attacks equal to 520% of her ATK to enemies at random. Level 2 (Unlocks by level 81) The magical attacks’ damage becomes equal to 710% of her ATK. Level 3 (Unlocks by level 161) The number of magical attacks becomes 4.

Limiter Release

Skill	Type	Cooldown
Limiter Release	Active Magical Attack/Heal	4

Skill Effect

Level 1 (Unlocks by level 11) Hidden inside A.A.’s man-made body is an immense magic power. By merely releasing it, rust covers, attaches to, and consumes everything around her. Deals 1 direct attack equal to 200% of her MAG to 4 random enemies, and restores HP equal to 15% of this skill’s total damage to A.A. Level 2 (Unlocks by level 21) The direct attack’s damage becomes equal to 300% of her MAG. Level 3 (Unlocks by level 101) The amount her HP is restored by becomes equal to 20% of this skill’s total damage. Level 4 (Unlocks by level 181) The direct attack’s damage becomes equal to 420% of her MAG.

The Perfect Specimen

Skill	Type	Cooldown
The Perfect Specimen	Passive Magical Attack/Buff	-

Skill Effect

Level 1 (Unlocks by level 41) At the cost of an untold number of lives, A.A.—the “Perfect Specimen”—was finally created. A.A. strengthens her basic attack. When she deals a basic attack, she instead deals 1 direct attack equal to 150% of her MAG to 1 random enemy. Level 2 (Unlocks by level 121) The direct attack’s damage becomes equal to 180% of her MAG. Level 3 (Unlocks by level 201) The direct attack’s damage becomes equal to 220% of her MAG.

Angel of Love

Skill	Type	Cooldown
Angel of Love	Passive Buff	-

Skill Effect
Level 1 (Unlocks by level 61) The guardian angel that sleeps within A.A. protects her. When A.A. is attacked, the attack’s damage is cut by 25%. This skill is activated until the end of the 1st turn. Level 2 (Unlocks by level 141) This skill becomes activated until the end of the 2nd turn. Level 3 (Unlocks by level 221) The damage from the enemy’s attack is cut by 55%.

【The Witch of Rust】A.A. Stats and Potential

Max Stats (Lv. 240)

HP	5123959
DEF	10
DEF Break	0
SPD	2687
PM. DEF Break	0
P. DEF	631718
M. DEF	694893
ACC	315862
EVD	277255
CRIT	277255
CRIT RES	256198
CRT DMG Boost	0
P. CRIT DMG Cut	0
M. CRIT DMG Cut	0
Debuff ACC	347446
Debuff RES	0
Counter	0
HP Drain	0

Max Potential (Lv. 240)

STR	631721
MAG	694893
DEX	554510
STA	512396

LR+5 Rarity Stats

These are the LR+5 Stats for Player Rank 132 at Max Lvl 255. These stats may still improve with Player Ranking, Party Level Link and Gear and Rune Enhancement.

HP	8548216
ATK	1151474
DEF	10
DEF Break	0
SPD	2687
PM. DEF Break	0
P. DEF	1013213
M. DEF	1114537
ACC	506610
EVD	444689
CRIT	444689
CRIT RES	410915
CRT DMG Boost	0.00%
P. CRIT DMG Cut	0.00%
M. CRIT DMG Cut	0.00%
Debuff ACC	557268
Debuff RES	0
Counter	0.00%
HP Drain	0.00%

LR+5 Potential Stats

STR	1013216
MAG	1114537
DEX	889378
STA	821830

【The Witch of Rust】A.A. Exclusive Weapon

Saberwings of Rust

Level 1 (Unlocked by getting A.A.'s Unique Skill Effect) Strengthens Angel of Love. The damage from the enemy’s attack is cut by 85%. Level 2 (Unlocks at UR rarity) Increases her chance to hit by 40% (cannot be dispelled). Level 3 (Unlocks at LR rarity) Strengthens Limiter Release. The direct attack’s damage becomes equal to 450% of her MAG.

【The Witch of Rust】A.A. Available Gachas

【The Witch of Rust】A.A. Invoke Banners

List of Gacha Banners
Prayer of The Fleeting

【The Witch of Rust】A.A. Profile and Lament

【The Witch of Rust】A.A.'s Information

Height	134 cm	Weight	29 kg
Bloodtype	A	Birthday	29-Feb
Lament	Ⅶ. THE RUST
Japanese Voice Actor	Minori Chihara
A homunculus born as part of an experiment to create a man-made witch. Ever since she was created, A.A. has lived in a laboratory, forced to act as a tool for experimentation. She may not have emotions, but she adores her creator, Professor Mertillier, like a mother.

【The Witch of Rust】A.A.'s Lament (Image Song)

Ⅶ. THE RUST (EN Version)
Ⅶ. THE RUST (JP Version)

MementoMori Related Guides

List of All Character Builds

List of All Character Profiles

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Azure Characters	Crimson Characters
Amber Characters	Emerald Characters
Radiance Characters	Chaos Characters
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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

Asahi	Apostle Rosalie	Morgana
Eir	Paladea	Yuni
Matilda	Liselotte	Fenny
Stella	Gil’uial	Winter Tropon
Sivi	Sonya	Summer Cordie
Belle	Priscilla	Artie
Chiffon	Summer Sabrina	Fia
Lea	Luke	Claudia
Sophia	Veela	Summer Moddey
Richesse	Tainted Iris	Winter Amour
Carol	Fortina	Cerberus
Rusalka	Elfriede	Ophelia
Armstrong	Witch Illya	Valeriede
A.A.