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Nightmare: Thundering Mephis is a 4-Cost Echo you can get in Wuthering Waves. See full details about Nightmare: Thundering Mephis, how to get it, its boss location, how to beat it, skills, material drops, possible Sonata Effects, and recommended characters to equip it to in this guide!
| Thundering Mephis Related Guides | ||
|---|---|---|
| Location and Rewards | Echo Skill and Info | Nightmare Echo Skill and Info |
List of Contents
|
Nightmare: Thundering Mephis W76 |
|
|---|---|
|
|
| Class | Cost |
| Overlord | 4 |
| Possible Sonata Effects | |
Transform into Nightmare: Thundering Memphis and attack enemies in front, dealing 405.00% Electro DMG. The Resonator with this Echo equipped in ther main slot gains 12.00% Electro DMG Bonus and 12.00% Resonance Liberation DMG Bonus.
CD: 25s
The effect above is for a Rarity 5 Nightmare: Thundering Mephis Echo.
| Sonata Effect | Set Bonuses |
|---|---|
|
|
2-pc: Electro DMG +10%.
5-pc: Electro DMG +15% after releasing Heavy Attack or Resonance Skill. This effect stacks up to 2 times, each stack lasts 15s. |

Nightmare: Thundering Mephis can be found in the waterfall area in Whispering Haven, near the Whisperwind Haven Beacon. Defeat it to gain its Echo.
If Nightmare: Thundering Mephis is not on the location on the map, make sure to complete the Dream Patrol I tutorial quest which you can get in Ragunna City.
| Recommended Characters |
|
|
|---|

List of Echoes and Sonata Effects
| Echoes by Cost | ||
|---|---|---|
| 4-Cost | 3-Cost | 1-Cost |
| Echo Classes | |||
|---|---|---|---|
| Calamity | Overlord | Elite | Common |
Nightmare: Thundering Mephis Echo and Skills: W76



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