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Mourning Aix is a 4-Cost Echo you can get in Wuthering Waves. See full details about Mourning Aix, its skills, possible Sonata Effects, how to get it and Phantom: Mourning Aix, and recommended characters to equip it to in this guide!
| Mourning Aix Related Guides | ||
|---|---|---|
| Location and Rewards | Echo Skill and Info | Nightmare Echo Skill and Info |
|
Mourning Aix H73 |
|
|---|---|
|
|
| Class | Cost |
| Overlord | 4 |
| Possible Sonata Effects | |
Transform into Mourning Aix and perform 2 consecutive claw attacks, each attack dealing 157.44% and 236.16% Spectro DMG respectively.
After the transformation, increase current character's Spectro DMG by 12.00% and Resonance Liberation DMG by 12.00% for 15s.
CD: 20s
The effect above is for a Rarity 5 Mourning Aix Echo.
| Phantom: Mourning Aix |
|---|
![]() |
Mourning Aix has a Phantom or Shiny version known as Phantom: Mourning Aix. Phantom: Mourning Aix is only a different color that you can apply to all other Echoes of the same type.
List of All Phantom Echoes
| Sonata Effect | Set Bonuses |
|---|---|
|
|
2-pc: Spectro DMG +10%.
5-pc: Spectro DMG +30% for 15s after releasing Intro Skill. |
You can get a Mourning Aix from defeating one at its boss challenge location. These are tough enemies, so be sure you're prepared!

Upon reaching Union Level 27, you can get a guaranteed 4 or 5-star Mourning Aix after clearing its Tactical Hologram: Calamity. These are challenging encounters, so be prepared when facing them.
All Tactical Hologram: Calamity Locations

You can get the Phantom variant of the Mourning Aix by doing Tactical Hologram: Calamity. You can exchange 300 Data Sets for it through the Simulation Training Point Shop after obtaining 3,500 Data Sets in total.
List of All Phantom (Shiny) Echoes
| Recommended Characters |
|
|
|
|---|---|---|
The characters above are best suited to equip Mourning Aix as its skill boosts Spectro and Resonance Liberation DMG.

List of Echoes and Sonata Effects
| Echoes by Cost | ||
|---|---|---|
| 4-Cost | 3-Cost | 1-Cost |
| Echo Classes | |||
|---|---|---|---|
| Calamity | Overlord | Elite | Common |
Mourning Aix Echo and Skills: H73



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