Wuthering Waves Myriad Snare Rustfire Chassis Boss Guide

Wuthering Waves Version 3.5, “Blade of Past Resounds, Lingering Dream Hymns,” went live on July 10, 2026, and it ships a new world boss to the freshly opened Mengzhou region. The Myriad Snare: Rustfire Chassis is an Autopuppet machine armed with a flaming circular saw on one arm and a heavy claw-flail on the other, designed for sustained, close-range pressure fights. Players run into it during the 3.5 main story, and the same fight returns as repeatable endgame content with a new 4-cost Fusion Echo on the line.

This guide covers where the boss sits in Mengzhou, the full attack pattern Sportskeeda Gaming has broken down, the Havoc Bane weakness that opens up clean team comps, and the rewards waiting at the end of the fight. The same patch also brings the new Song of Feathered Trace and Lamp of Nether Road Sonata Effects, which pair with the characters the boss fight is tuned around.

Where the Boss Lives

The Myriad Snare: Rustfire Chassis arena sits in the Western Fang Peak sub-region of Mengzhou, the new 3.5 area that opened up around the city of Xuanfang Hold. The path there runs through the Hundred-Span Corridor to the northwest of the city, and a Resonance Nexus sits close enough to the boss gate that the run from fast travel to the fight is short once the map is unlocked. Per the Myriad Snare release date and boss info page, the boss is the marquee World Boss added with the patch.

Sportskeeda Gaming’s guide describes the entrance as a big green holographic gate, and once you are past it, you are in the boss arena. Mounted traversal works, so the bike can be ridden to the gate for players who have not yet fully revealed the surrounding terrain on the map.

The Mengzhou map is a 3.5 unlock, so the route is only open to players who have progressed far enough to claim the new area on the world map. Players who started 3.5 with the patch download can reach the boss without any prerequisite combat checks beyond the standard Union Level gate for the region’s open-world content.

The Seven Attacks to Learn

The boss leads with its left arm, slamming it into the ground three times in a row. The third hit comes with a longer wind-up and deals increased damage, so it is the one to commit a dodge to if a player is late on the first two reads. The right arm is the dangerous one for follow-up: it can extend into the air to summon a ball-and-chain, then slam the chain down for heavy knockback if it connects.

The defensive move to know is the shield wheel that spins around the right arm. The spin hits for solid damage on contact, but the timing is telegraphed cleanly enough that the standard parry window opens on most of the hits, per the moveset breakdown. A second right-arm pattern extends outward to grab the active Resonator, briefly stunning them and forcing a recovery animation.

The boss telegraphs its charge with a shield raise and a steam vent. The combination of steam and the shield front means the player has roughly a second to side-dodge before the rush lands. A glow that covers the entire body signals the big AoE: the hit deals heavy damage and can knock the player out, so this is the moment to disengage or use an i-frame skill rather than try to tank it.

The last pattern attaches the shield to the chains. The boss swipes the ground twice with the chain, then slams its weapon down. The two ground swipes carry different timings from the slam, so the player has to stay in dodge mode through the full combo rather than commit to a single evasion.

1. Left arm three-strike combo, third hit with a longer wind-up and higher damage
2. Right arm ball-and-chain slam with knockback on hit
3. Shield wheel spin, parryable on most hits
4. Right arm grab and brief stun
5. Shield raise and steam vent, then a charge
6. Full-body glow AoE with heavy damage and knockback
7. Chain-attached shield, two ground swipes, then a slam

Havoc Bane Is the Cleanest Path In

The Myriad Snare: Rustfire Chassis takes heavy damage from Havoc Bane, and the same source flags the boss as having a high Fusion Resistance. The latter is worth flagging up front, because the boss drops a Fusion 4-cost Echo and a Fusion-friendly Sonata Effect; the Echo is a long-term farming reward, not a damage multiplier for the boss itself. Havoc is the damage type to bring to the fight.

Sportskeeda Gaming’s list of viable characters for the fight includes Yangyang: Xuanling, Phrolova, Chisa, Cartethyia, Ciaccona, Hiyuki, and Lucilla. The same source singles out Chisa and Yangyang: Xuanling as the cleanest Havoc Bane applicators for this specific fight. Yangyang: Xuanling is the new 5-star Havoc Sword main DPS added in 3.5 Phase 1, and her kit is built around Heavy Attack chains and Havoc Bane payoff, per the 3.5 new Echo and Sonata breakdown.

A practical team needs at least one dedicated Havoc Bane applicator, a main DPS, and a healer or shielder. The new Song of Feathered Trace Sonata Effect amplifies this further: the 5-piece set gives a 20% Crit. Rate boost and 35% Heavy Attack DMG Bonus to the active Resonator for 15 seconds after Havoc Bane is inflicted, which lines up cleanly with Yangyang: Xuanling’s Heavy Attack-focused kit.

What Drops at the End of the Fight

The drop table for the Myriad Snare: Rustfire Chassis fight includes a mix of standard boss loot and one new high-value item. The list, as compiled by Sportskeeda Gaming from in-game drops, covers Intimacy, Union EXP, Sealed Tube, Resonance Potion, Energy Core, Solidarity’s Loneflame, and a Standard Weapon Mold, plus the new Myriad Snare: Rustfire Chassis Echo itself.

The Echo is a 4-cost Fusion piece that pairs with the Overlord Sonata Effect, as well as the two new Sonata Effects introduced in 3.5: Heart of Evil’s Purge and Lamp of Nether Road. Its active skill summons the boss to crush enemies along a path for up to 5 hits, dealing Fusion DMG based on the wielder’s Max HP on each crush, and the main-slot bonus adds 12.00% Fusion DMG Bonus and 20 Heavy Attack DMG Bonus with a 4-second cooldown, per the full 4-cost Echo stat list. Players who need a dedicated Havoc Bane applicator but do not have Yangyang: Xuanling can still clear the boss with the Havoc supports already in their roster, and the 3.5 patch opened Yangyang: Xuanling’s banner on July 10 with Suisui’s banner scheduled for Phase 2 on July 30, per the 3.5 patch and banners summary.

• Intimacy
• Union EXP
• Sealed Tube
• Resonance Potion
• Energy Core
• Solidarity’s Loneflame
• Standard Weapon Mold
• Myriad Snare: Rustfire Chassis Echo (4-cost Fusion)

Frequently Asked Questions

When did the Myriad Snare: Rustfire Chassis release?

The boss released with Wuthering Waves Version 3.5, “Blade of Past Resounds, Lingering Dream Hymns,” on July 10, 2026, alongside the new Mengzhou region.

Where is the Myriad Snare: Rustfire Chassis boss located?

The arena sits in the Western Fang Peak sub-region of Mengzhou, northwest of Xuanfang Hold, reached through the Hundred-Span Corridor and gated by a green holographic entrance.

What is the boss weak to?

The boss is weak to Havoc Bane and carries a high Fusion Resistance, so Havoc Bane-applicator characters are the cleanest choice for the fight.

What Echo does the Myriad Snare: Rustfire Chassis drop?

A new 4-cost Fusion Echo that pairs with the Overlord Sonata Effect, plus the new 3.5 Sonata Effects Heart of Evil’s Purge and Lamp of Nether Road.