| Type | Claymore |
| Rarity |  |
| How to get | Wish |
| Base Attack | 42 |
| Substats | ATK |
| Passive | Watatsumi Wavewalker |
| Description | For every point of the entire party’s maximum Energy, the Elemental Burst DMG of the character equipping this weapon is increased by 0.12/0.15/0.18/0.21/0.24%. A maximum of 40/50/60/70/80% increased Elemental Burst DMG can be achieved this way. |
In Game Description
The beloved sword of the legendary “Akuou.” The blade is huge and majestic, but is surprisingly easy to wield.
How to Get Akuoumaru?
Can be obtained from exclusive weapon banner
Weapon Upgrade Materials
Here’s all material used to upgrade Akuoumaru claymore:
| Level |  Mora | Ascension Material | Material 1 | Material 2 |
|---|---|---|---|---|
| Level 20 | 5.000 |  x3 |  x3 |  x2 |
| Level 40 | 15.000 |  x3 | x12 | x8 |
| Level 50 | 20.000 | x6 |  x6 |  x6 |
| Level 60 | 30.000 |  x3 | x12 | x9 |
| Level 70 | 35.000 | x6 |  x9 |  x6 |
| Level 80 | 45.000 |  x4 | x18 | x12 |
Special Ability Based on Refinement
Just like any other weapon, Akuoumaru also have special effect. The higher rank of weapon refinement, the effect will become stronger with highest number at refinement rank 5.
| Refinement Rank | Description |
|---|---|
| Refinement 1 | For every point of the entire party’s combined maximum Energy, 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. |
| Refinement 2 | For every point of the entire party’s combined maximum Energy, 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. |
| Refinement 3 | For every point of the entire party’s combined maximum Energy, 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. |
| Refinement 4 | For every point of the entire party’s combined maximum Energy, 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. |
| Refinement 5 | For every point of the entire party’s combined maximum Energy, 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. |