Wuthering Waves 3.7 Xin Build and Team Guide: Electric Echo Sets and the Oct 8 Challenge | GameHub

Applicable version: 3.7 (launched 2026-09-30)

Wuthering Waves 3.7 Overview: New Characters and Banners

Maintenance for 3.7 ran from 2026-09-30 04:00 to 11:00 (UTC+8), and compensation required a character created before that window with mail unlocked . The banners split into two phases: the first reruns Yuno and Chisa, the second reruns Linnae and Rosara .

What Xin and Suoming Do

Xin is a five-star Electric Rectifier whose combat tags are main DPS, coordinated attack, Resonance Skill damage, concerto, and electromagnetism; Suoming is a five-star Electric Sword focused on fast concerto, normal attack damage, and Electric DMG amplification . Wuthering Waves 3.7 Xin build starts with whether your team lacks a front-line carry or a rotation anchor.

Sign-In and Patch Cycle

The Moonlit Gift seven-day sign-in opened with 3.7 and closes on 2026-11-11 at 03:59 . The patch runs until the November 12 maintenance, with double-drop material windows in between, so bank stamina for those.

Wuthering Waves 3.7 Xin Echo Sets: Choosing Among Three New Sets

Patch 3.7 adds the Echoes Jiexing Sha, Juexi Po, Xunxiao Qiangwei, Qizhan Kui, and Yuming She plus one new Cost 4 Echo . The three new set effects map to electromagnetism, outro, and healing routes.

Electromagnetism Route: Heart That Mirrors the World

When a character applies the Electromagnetic effect to an enemy, or gains or responds to concerto, crit rate rises 15% and Electric DMG rises 22.5% for 30 seconds. This is the most direct set for a character built on electromagnetism and concerto such as Xin.

Outro and Healing Routes

Mirror-Image Flowing Lightning grants 10% Electric DMG for 15 seconds when applying electromagnetism, and after an outro skill the next character's Electric DMG rises 25% , suited to double-Electric rotations. Bloom of Remembrance grants the team 10% ATK when a character heals, plus an extra 15% on concerto, a support-side option.

Wuthering Waves 3.7 Xin Echo Pieces and Stats

On the electromagnetism route, start from the five-piece Heart That Mirrors the World set and fill the rest with Electric DMG or crit stats.

Slot	Main stat lean	Note
4	Crit rate	Threshold before crit damage
5	Electric DMG bonus	Attribute damage enters the multiplier directly
6	Attack	Swap to Energy Regen if short
Sub-stats	Crit pair > ATK% > Energy Regen	Keep the crit pair balanced

Why the Crit Pair Comes First

Xin stacks damage through coordinated attacks and Resonance Skill damage, and with high trigger frequency a lopsided crit pair drops total damage fast. That shows up more sharply here than on a pure panel-stacking carry.

How Echo Stacking Works

After 3.7, Echoes with identical type, set effect, and main note attribute that are not yet upgraded stack into a single bag slot . Decide which set you want before farming; stacking fixes your bag, not bad sub-stats.

Wuthering Waves 3.7 Xin Teams

Team	Composition idea	Use case
Double Electric	Xin plus Suoming, stacking electromagnetism	High floors of the Tower of Adversity
Concerto rotation	Xin plus a reliable outro provider	Stages rewarding frequent swaps
Transitional	Xin plus an existing roster	Forming a team on limited resources

Making Concerto Reliable

Concerto and concerto response are the prerequisites for Xin to fully use Heart That Mirrors the World, so the team must supply a steady outro. This is the most commonly overlooked part of the build.

Wuthering Waves 3.7 Tian Gong Seek and Patch Events

The Tian Gong Seek challenge opening October 8 is a timed combat mode that banks points by wave for material exchange . Later, on October 22, the Silent Elimination stage challenge and the Trail of Tides exploration commissions open.

Clearing Waves Efficiently

Lock in one stable rotation before chasing faster times. Constant swapping in wave modes slows you down; keeping Xin on the field for continuous damage pays better.

When to Farm Double Drops

Simulation and Threnodian double drops land in mid-October, and Silent Clear doubles in early November . Save stamina for those windows.

Wuthering Waves 3.7 Resource Planning

Priority	Situation	Advice
High	Team lacks an Electric front-line carry	Level Xin first
Medium	Lack a concerto anchor, going double Electric	Then consider Suoming
Low	Team already formed	Save for the second-phase reruns
Low	Only lack a support	Give Bloom of Remembrance to the support

Level and skills first, then Echo sub-stats. Cross-title planning can sit alongside the guides hub at gghubs.com. One caveat worth stating plainly: the set effects above come from the official 3.7 version notes and are reliable, but the ideal rotation length and swap timing depend on your own team's energy economy. Run a fixed rotation for a few clears before rearranging your Echo inventory, because a set that looks strong on paper can underperform when concerto uptime is inconsistent.

Wuthering Waves 3.7 Xin FAQ

When does 3.7 update and what is the compensation?

A: Maintenance 2026-09-30 04:00 to 11:00, with 300 Astrite and 2 Crystal Solvent, plus a separate 300 Astrite bug fix grant .

What attribute and role is Xin?

A: A five-star Electric Rectifier whose combat tags are main DPS, coordinated attack, Resonance Skill damage, concerto, and electromagnetism .

Who is Heart That Mirrors the World for?

A: Characters built on electromagnetism and concerto; applying electromagnetism or gaining concerto gives 15% crit rate and 22.5% Electric DMG for 30 seconds.

When does Tian Gong Seek open?

A: October 8, banking points by wave for material exchange .

Wuthering Waves 3.7 Xin Action List

1. Claim maintenance compensation before the mail expires.
2. Decide your Echo route before farming.
3. Always bring a steady outro provider.
4. Farm materials during double-drop windows.
5. Check whether the team lacks a carry or a rotation anchor before pulling.