Nightmare: Impermanence Heron

ElectroEchoes Formation: Transform

Elements

Electro

Cost

Sonata sets

Wuthering Waves hasn't published a danger class (Calamity/Overlord/Elite) for this echo in the official data we have — no guessing, no made-up label.

Echo Skill

Transform into Nightmare: Impermanence Heron and deliver up to 10 consecutive strikes to surrounding enemies, each dealing 40.50% Havoc DMG. The Resonator with this Echo equipped in their main slot gains 12.00% Havoc DMG Bonus and 12.00% Heavy Attack DMG Bonus. CD: 25s.

Cooldown: 25s

Main-Slot Bonus

The Resonator with this Echo equipped in their main slot gains 12.00% Havoc DMG Bonus and 12.00% Heavy Attack DMG Bonus.

Where to Farm

Dropped by: Nightmare: Impermanence Heron

Sonata sets

Midnight Veil

2-PieceHavoc DMG + 10%

5-PieceWhen Outro Skill is triggered, deal additional 480% Havoc DMG to surrounding enemies, considered Outro Skill DMG, and grant the incoming Resonator 15% Havoc DMG Bonus for 15s.

Midnight Veil →