All New Bosses & Echoes in Wuthering Waves 3.0: Conquer Hyvatia & Reactor Husk for Top Rewards

Wuthering Waves Version 3.0, "We Who See the Stars," brings the Lahai-Roi region to life like never before. But beyond the breathtaking landscapes lie two formidable Overlord-class Echoes: Hyvatia and Reactor Husk. These bosses aren’t just tough fights—they’re the gateway to the best new Echoes, gear, and meta-defining Sonata Effects. Whether you’re a veteran Rover or a returning player, understanding their locations, abilities, and rewards is crucial to mastering the new Off-Tune combat system. This guide breaks down everything you need to hunt, defeat, and collect the ultimate Echoes in Wuthering Waves 3.0.


🗺️ The Hunt Begins: Finding Your Target
Unlock the Resonance Nexus in Lahai-Roi via Chapter 3, Act 1: What Burns Beneath Frostlands, and prepare to face:

Boss NameRegion LocationSpecific Area & Directions
HyvatiaLahai-RoiLocation details are being compiled by trackers. Updates coming soon.
Reactor HuskLahai-RoiFangspire Chasm, northeastern arena, north of Startorch Academy

⚔️ Know Your Enemy: Combat Previews

All New Bosses & Echoes in Wuthering Waves 3.0

  • Hyvatia: Spectro-damage dealer; expect precision ranged attacks and sniper-style assaults.

  • Reactor Husk: Aggressive robotic foe; heavy claw swipes create AoE fire hazards.

Pro-Tip: Off-Tune and Tune Break mechanics are critical. Build the boss’s Off-Tune Level, then unleash your Resonator’s Tune Break to maximize damage and interrupt deadly attacks.


🏆 The Ultimate Prize: Echo Skills & New Sonata Sets

EchoCost & ClassEcho Skill EffectPossible Sonata Effects (New in 3.0)
Hyvatia4-Cost, OverlordFires lasers dealing 27.36% Spectro DMG x10; Outro Skill boosts next Intro Skill by 10% All-Attribute DMG for 15sPact of Neonlight Leap (Spectro DMG/Support), Rite of Gilded Revelation (Spectro Basic Attack)
Reactor Husk4-Cost, OverlordHeavy slash dealing 351% Fusion DMG; grants 10% Energy RegenHalo of Starry Radiance (Healing/Team Support)

Why These Sonata Sets Are Meta-Defining:

  • Pact of Neonlight Leap: Boosts ATK for Spectro teams, scaling with Tune Break Boost.

  • Halo of Starry Radiance: Converts Off-Tune Buildup Rate into a potent ATK bonus—perfect for Mornye and other healers.

  • Rite of Gilded Revelation: Rewards sustained Spectro DPS with stacked DMG and massive Basic Attack bonuses.


🧭 Beyond the Overlords: Other New Echoes in Lahai-Roi

  • Twin Nova Synergy Pair: 3-Cost Nebulous Cannon (Spectro) + Collapsar Blade (Electro) unlock special effects when equipped together.

  • New Companions: Shield-granting Spacetrek Explorer, Sabercat variants, elemental Coleoids, and more—collected via Tacet Fields and exploration.


Your Boss-Farming Action Plan

  1. Progress the Story: Unlock Lahai-Roi via Chapter 3 main quest.

  2. Farm Strategically: Prioritize Reactor Husk for Halo of Starry Radiance, Hyvatia for Spectro-focused Sonata sets.

  3. Upgrade Data Bank: Max level is now 30; reaching 27 boosts absorption chances for perfect Echo stats.

  4. Explore Everything: Use the new Projector utility to find hidden areas and resources.


Conclusion:

Hyvatia and Reactor Husk are not just formidable challenges—they’re keys to the new meta. Mastering their fights, claiming their Echoes, and integrating their Sonata Effects will give you a major edge in Version 3.0. Rally your team, explore every corner of Lahai-Roi, and prove that you command the ultimate power of the Echoes.      


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