Check out how to beat the Hazard Zone's Echoing Tower in Wuthering Waves. We have the best characters and stage guides for each floor here!

Hazard Zone Echoing Tower Floor 1

Echoing Tower 1 Details

Interference
Enemy Fusion RES decreased by 10%. When Resonators cast Intro Skill, their ATK is increased by 5% per second, stacking up to 4 times. At max stack, they gain 40% Resonance Skill DMG Bonus. The effect ends when the Resonator is switched off the field.
Objectives
Clear the challenge Clear the challenge with at least 90s left Clear the challenge with at least 150s left
Enemies (Lv. 70)	Spearback
Vigor Cost	1 Vigor

Echoing Tower 1 Best Characters

Main DPS	Encore Chixia Changli
Sub-DPS	Mortefi Sanhua
Support	Baizhi Verina Shorekeeper

Single Character Composition

Suggested Character	Chixia	Other DPS characters will also work, like Sanhua or Danjin.

Change to Freezing Frost for more damage if you're running Sanhua with Moonlit Clouds.

Full Team Suggestion

DPS 1	DPS 2	Support
Encore	Changli	Verina

For the first two floors of this Tower, the enemies are quite easy to deal with using a single built character. Just make sure you are evading all attacks and using a well built character for this floor. The best one to use for this floor is going to be Chixia because they benefit from the interference' Fusion RES shred.

If you have enough characters, you can still go ahead and use the full Encore-Changli quickswap team but using only one character can save Vigor especially for universal supports like Shorekeeper and Verina.

Hazard Zone Echoing Tower Floor 2

Echoing Tower 2 Details

Interference
Enemy Fusion RES decreased by 10%. When Resonators cast Intro Skill, their ATK is increased by 5% per second, stacking up to 4 times. At max stack, they gain 40% Resonance Skill DMG Bonus. The effect ends when the Resonator is switched off the field.
Objectives
Clear the challenge Clear the challenge with at least 90s left Clear the challenge with at least 150s left
Enemies (Lv. 75)	Roseshroom Young Roseshroom
Enemy RES	Havoc
Vigor Cost	2 Vigor

Echoing Tower 2 Best Characters

Main DPS	Encore Chixia Changli
Sub-DPS	Mortefi Sanhua
Support	Baizhi Verina Shorekeeper

Single Character Composition

Suggested Character	Chixia	Other DPS characters will also work, like Sanhua or Danjin.

Change to Freezing Frost for more damage if you're running Sanhua with Moonlit Clouds.

Full Team Suggestion

DPS 1	DPS 2	Support
Encore	Changli	Verina

Like the first floor, enemies in floor two are still quite easy to deal with using a single built character. Just make sure you are evading all attacks and using a well built character for this floor. The best one to use for this floor is going to be Chixia because they benefit from the interference' Fusion RES shred.

If you have enough characters, you can still go ahead and use the full Encore-Changli quickswap team but using only one character can save Vigor especially for universal supports like Shorekeeper and Verina.

Hazard Zone Echoing Tower Floor 3

Echoing Tower 3 Details

Interference
Enemy Fusion RES decreased by 10%. When Resonators cast Intro Skill, their ATK is increased by 5% per second, stacking up to 4 times. At max stack, they gain 40% Resonance Skill DMG Bonus. The effect ends when the Resonator is switched off the field.
Objectives
Clear the challenge Clear the challenge with at least 120s left Clear the challenge with at least 180s left
Enemies (Lv. 80)	Questless Knight Diurnus Knight Nocturnus Knight
Enemy RES	Electro Havoc Spectro
Vigor Cost	3 Vigor

Echoing Tower 3 Best Characters

Main DPS	Encore Chixia Changli
Sub-DPS	Mortefi Sanhua
Support	Baizhi Verina Shorekeeper

Best Fusion Team Comp

DPS 1	DPS 2	Support
Encore	Changli	Verina

The third floor is where the difficulty can ramp up. For this floor, using the full lineup of the Encore-Changli quickswap team would be the best option. The final tower will not be using any Fusion character at all, so you can start using them already at this stage.

Make sure you are quick swapping between the animations of Encore and Changli to maximize the damage. This way you can defeat the enemies more quickly.

Hazard Zone Echoing Tower Floor 4

Echoing Tower 4 Details

Interference
Enemy Fusion RES decreased by 10%. When Resonators cast Intro Skill, their ATK is increased by 5% per second, stacking up to 4 times. At max stack, they gain 40% Resonance Skill DMG Bonus. The effect ends when the Resonator is switched off the field.
Objectives
Clear the challenge Clear the challenge with at least 120s left Clear the challenge with at least 180s left
Enemies (Lv. 90)	Scar
Enemy RES	Havoc Spectro
Vigor Cost	4 Vigor

Echoing Tower 4 Best Characters

Main DPS	Encore Chixia Changli
Sub-DPS	Mortefi Sanhua
Support	Baizhi Verina Shorekeeper

Best Fusion Team Comp

DPS 1	DPS 2	Support
Encore	Changli	Verina

Similar to the third floor, continue using the Encore-Changli quickswap Fusion team to defeat Scar in this floor. Scar will start in his Goat form which is way deadlier than his human form so be careful!

Make sure to avoid his grab attack since it have one-shot any Resonator caught!

Wuthering Waves Related Guides

Tower of Adversity Guide

Hazard Zone

All Hazard Zone Towers
Resonant Tower	Hazard Tower	Echoing Tower
Hazard Tower will reset in:

Hazard Zone refreshes every 28 days.

Hazard Zone Guide

All Permanent Zones

Overdrive Zone

All Overdrive Zone Towers
Resonant Tower	Hazard Tower	Echoing Tower

Overdrive Zone Guide

Experimental Zone

All Experimental Zone Towers
Resonant Tower	Echoing Tower

Experimental Zone Guide

Stable Zone

Stable Zone Tower
Resonant Tower