Akuoumaru

Aku­ou­maru
Weapon Type	Claymore
Quality
Series	Watatsumi Series
How to Obtain	Weapon Event Wishes
Release Date	October 13, 2021 2 years, 10 months ago
Effects Elemental Burst DMG Bonus Energy
Base Stats
Base ATK(Lv. 1 - 90)	42 - 510
Base ATK(Lv. 1 - 90)	42 - 510
2nd StatType	ATK
2nd StatType	ATK
2nd Stat(Lv. 1 - 90)	9% - 41.3%
2nd Stat(Lv. 1 - 90)	9% - 41.3%
Weapon Refinement
Watatsumi Wavewalker	For every point of the entire party's combined maximum Energy capacity, the Elemental Burst DMG of the character equipping this weapon is increased by 0.12%. A maximum of 40% increased Elemental Burst DMG can be achieved this way.
1 → 2	Cost ×1,000
Watatsumi Wavewalker	For every point of the entire party's combined maximum Energy capacity, the Elemental Burst DMG of the character equipping this weapon is increased by 0.15%. A maximum of 50% increased Elemental Burst DMG can be achieved this way.
2 → 3	Cost ×2,000
Watatsumi Wavewalker	For every point of the entire party's combined maximum Energy capacity, the Elemental Burst DMG of the character equipping this weapon is increased by 0.18%. A maximum of 60% increased Elemental Burst DMG can be achieved this way.
3 → 4	Cost ×4,000
Watatsumi Wavewalker	For every point of the entire party's combined maximum Energy capacity, the Elemental Burst DMG of the character equipping this weapon is increased by 0.21%. A maximum of 70% increased Elemental Burst DMG can be achieved this way.
4 → 5	Cost ×8,000
Watatsumi Wavewalker	For every point of the entire party's combined maximum Energy capacity, the Elemental Burst DMG of the character equipping this weapon is increased by 0.24%. A maximum of 80% increased Elemental Burst DMG can be achieved this way.
MAX

The beloved sword of the legendary "Akuou." The blade is huge and majestic, but is surprisingly easy to wield.

Akuoumaru (Japanese: 惡王丸 Akuou-maru) is a 4-Star claymore. It is part of the Watatsumi Series.

Ascensions and Stats

Toggle Ascension Materials

Ascension Phase	Level	Base ATK	2nd Stat (ATK)
0✦	1/20	42	9%
	20/20	109	15.9%
Ascension Cost (0 → 1) 5,000 3 3 2
1✦	20/40	135	15.9%
	40/40	205	23.2%
Ascension Cost (1 → 2) 15,000 3 12 8
2✦	40/50	231	23.2%
	50/50	266	26.8%
Ascension Cost (2 → 3) 20,000 6 6 6
3✦	50/60	292	26.8%
	60/60	327	30.4%
Ascension Cost (3 → 4) 30,000 3 12 9
4✦	60/70	353	30.4%
	70/70	388	34.1%
Ascension Cost (4 → 5) 35,000 6 9 6
5✦	70/80	414	34.1%
	80/80	449	37.7%
Ascension Cost (5 → 6) 45,000 4 18 12
6✦	80/90	475	37.7%
	90/90	510	41.3%

Total Cost (0 → 6)

150,000 Mora

3 Coral Branch of a Distant Sea

9 Jeweled Branch of a Distant Sea

9 Jade Branch of a Distant Sea

4 Golden Branch of a Distant Sea

15 Concealed Claw

18 Concealed Unguis

27 Concealed Talon

10 Old Handguard

15 Kageuchi Handguard

18 Famed Handguard

Gameplay Notes

• Maximum Energy capacity for a character is the energy cost of the character's burst, e.g., Dawn costs 40 energy, so Diluc has 40 Maximum Energy.

Description

This blade was once used by a mighty general of Watatsumi.
It is said that he only knew as much of swordsmanship as the "Getsumouun" and "Yuushio" styles he taught himself,
And yet by their grace was he never vanquished by any mortal in a duel or on the field of battle.

It is often said that snakes and fish are both cold-blooded. But cold-blooded creatures ever seek the promised land of warmth.
To see his people's dreams fulfilled, Omikami challenged the gathering storm clouds to war.
Amongst the people of Watatsumi bent upon conquest, a young man stood out from the rest.
His fearless valor won him great love in Watatsumi, and they named him Touzannou.
But after many years passed, his kingly name was forgotten, only to be replaced by the epithet by which his foes knew him:
"Akuou," the wicked fangs and claws of the Great Serpent, the savage, demonic invader of Yashiori Island...

The slaughter had hardened the young man into a warrior. But to him,
Only the wish he made before departing, a wish made upon the moon reflected in the waters beside the shrine, was eternal.

"One day, I shall set myself above Mt. Yougou, overlooking the palace of the Lord of Thunder."
"I will have a joyful showdown against the legendary Great Tengu of Yougou upon the roof of Tenshukaku."
"...And then I'll bring that tengu's mask back to Ayame and Mouun as a souvenir!"

At last, the tides washed all their dreams away like towers in the sand.
The tengu's mask, shining like a crimson star, was shattered like seashore gravel amidst the chaotic battle,
Nor would the shrine maiden who shone like moonlight into the young man's soul ever return again,
While the Akuou himself would face the blinding ray of lightning alongside the Great Serpent.

Gallery

Multi-Wish Artwork

Full Icon

Full Weapon

Weapon Introduction

Availability

Weapon Event Wishes

Akuoumaru has been promoted or featured with a drop-rate boost in 5 Event Wishes:

Wish	Featured	Duration	Version
Epitome Invocation 2021-10-13	Po­lar Star Po­lar Star Mem­o­ry of Dust Mem­o­ry of Dust Aku­ou­maru Aku­ou­maru Fa­vo­ni­us Sword Fa­vo­ni­us Sword Fa­vo­ni­us Lance Fa­vo­ni­us Lance Eye of Per­cep­tion Eye of Per­cep­tion Rust Rust	October 13, 2021 – November 2, 2021	2.2
Epitome Invocation 2022-03-08	En­gulf­ing Light­ning En­gulf­ing Light­ning Ever­last­ing Moon­glow Ever­last­ing Moon­glow Aku­ou­maru Aku­ou­maru Mouun's Moon Mouun's Moon Li­on's Roar Li­on's Roar Fa­vo­ni­us Lance Fa­vo­ni­us Lance Sac­ri­fi­cial Frag­ments Sac­ri­fi­cial Frag­ments	March 8, 2022 – March 29, 2022	2.5
Epitome Invocation 2022-12-27	En­gulf­ing Light­ning En­gulf­ing Light­ning Ha­ran Gep­paku Fu­tsu Ha­ran Gep­paku Fu­tsu Aku­ou­maru Aku­ou­maru Mouun's Moon Mouun's Moon Li­on's Roar Li­on's Roar Fa­vo­ni­us Lance Fa­vo­ni­us Lance Sac­ri­fi­cial Frag­ments Sac­ri­fi­cial Frag­ments	December 27, 2022 – January 17, 2023	3.3
Epitome Invocation 2023-05-24	Thun­der­ing Pulse Thun­der­ing Pulse Ka­gu­ra's Ver­i­ty Ka­gu­ra's Ver­i­ty Aku­ou­maru Aku­ou­maru The Flute The Flute Drag­on's Bane Drag­on's Bane The Widsith The Widsith Rust Rust	May 24, 2023 – June 13, 2023	3.7
Epitome Invocation 2023-12-20	Verdict Verdict Mist­split­ter Re­forged Mist­split­ter Re­forged Aku­ou­maru Aku­ou­maru Mouun's Moon Mouun's Moon The Flute The Flute Drag­on's Bane Drag­on's Bane Fa­vo­ni­us Co­dex Fa­vo­ni­us Co­dex	December 20, 2023 – January 9, 2024	4.3

Chronicled Wishes

Akuoumaru has not been included in any Chronicled Wishes.

Other Languages

Akuoumaru

Language	Official Name	Literal Meaning
English	Akuoumaru	—
Chinese (Simplified)	恶王丸 Èwángwán	Akuoumaru
Chinese (Traditional)	惡王丸 Èwángwán
Japanese	惡あく王おう丸まる Akuou-maru	Akuoumaru
Korean	아쿠오마루 Akuomaru	—
Spanish	Rey del Mal	King of Evil
French	Akuoumaru	—
Russian	Акуомару Akuomaru	—
Thai	Akuoumaru	—
Vietnamese	Akuoumaru	—
German	Akuoumaru	—
Indonesian	Akuoumaru	—
Portuguese	Akuoumaru	—
Turkish	Akuou'nun Kılıcı	Akuou's Sword
Italian	Spada di Akuou	Akuou's Sword

Watatsumi Wavewalker

Language	Official Name	Literal Meaning
English	Watatsumi Wavewalker	—
Chinese (Simplified)	驭浪的海祇民 Yùlàng de Hǎiqí-mín
Chinese (Traditional)	馭浪的海祇民 Yùlàng de Hǎiqí-mín
Japanese	波を統べる海祇の民 Nami wo Suberu Watatsumi no Tami	Wave-Conquering Watatsumi Resident
Korean	파도를 지배하는 와타츠미의 백성 Padoreul Jibaehaneun Watacheumi-ui Baekseong	Watatsumi's People Who Rule the Wave
Spanish	Dominaolas de Watatsumi	Watatsumi Wavedominator
French	Marchevague de Watatsumi	Watatsumi Wavewalker
Russian	Укротитель волн Ватацуми Ukrotitel' voln Vatatsumi	Watatsumi Waves Tamer
Thai	Watatsumi Wavewalker	—
Vietnamese	Kẻ Cưỡi Sóng Watatsumi
German	Wellenbändiger von Watatsumi	Wavebender of Watatsumi
Indonesian	Watatsumi Wavewalker	—
Portuguese	Dominadora de Ondas Watatsumi
Turkish	Watatsumi Dalga Sürücüsü	Watatsumi Wave Driver
Italian	Dominaonde di Watatsumi	Watatsumi's Waveruler

Change History

Released in Version 2.2

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