Wuthering Waves 3.7 did not change the Echo rules, and the Wuthering Waves best teams question still comes down to Echo quality rather than roster width. Five Echoes must total 12 COST or less, set effects trigger on piece count, main stats decide what an Echo adds and substats decide how much . Patch 3.7.2 landed on October 16, 2026 and only fixed a crash on some iOS devices, so the build math here still holds .
Applicable version: 3.7.2 (released 2026-10-16, bug-fix patch that leaves Echo and progression rules untouched)
Wuthering Waves 3.7 Echo basics: COST and set rules
Two hard constraints govern Echo building: COST and set count. COST is the capacity each Echo carries and the five pieces cannot exceed 12 in total; set effects trigger on matching pieces, usually at two and five . Those two rules set the shape of a build: keep COST legal first, keep the set count complete second.
Higher COST is not automatically better
High-COST Echoes roll bigger main stats, but they eat the budget for everything else. A 4-COST plus two 3-COST pieces already use 10 of 12, leaving two slots at 1 COST each . Forcing a second 4-COST breaks the set count and costs more than it gains.
When set count and main stats conflict
Keep the set. A five-piece set effect is a multiplier, while one good main stat is an addition . Five matching pieces with mediocre main stats usually beat three matching plus two high-roll off-set pieces.
Wuthering Waves 3.7 main stats: follow the damage source
Main stats are not chosen by tier list, they are chosen by where the character's damage comes from. Direct-damage carries want crit rate and ATK percent, Anomaly and damage-over-time characters want elemental DMG bonus and Proficiency, and supports want Resonance Efficiency .
Slot one and slot four
Slot one takes flat or percent ATK and slot four takes crit rate or crit damage; that is the standard direct-damage layout . The test is which stat you are short of: below 50 percent crit rate, take crit rate; above it, take crit damage.
Elemental bonus must match
Elemental DMG bonus only applies to a matching element, so a mismatch is a dead stat . Check the character's element tag before deciding to keep an Echo.
Wuthering Waves 3.7 COST 12 layouts
| Layout | Pieces | Total COST | Use case |
|---|---|---|---|
| 4+3+3+1+1 | One 4-COST plus two 3-COST | 12 | Standard carry build |
| 3+3+3+3 | Four 3-COST | 12 | Sub-DPS or missing main stat |
| 4+4+3+1 | Two 4-COST | 12 | Single-target, slower rotation |
| 1+1+1+1+1 | Five 1-COST | 5 | Transition only, do not enhance |
(Original comparison table built on the in-game Echo system description)
Why carries run 4+3+3+1+1
The layout puts one high-value main slot, two medium slots and two flexible slots together, concentrating main stats in slots one and four while still completing the set . Its weakness is that 1-COST pieces roll low, so substats have to compensate.
Why sub-DPS can run 3+3+3+3
A sub-DPS contributes a smaller damage share, so a slightly weaker main stat matters less while set completion gets easier . If your sub-DPS is still on off-set pieces, finish the four-piece 3-COST set before chasing a single high roll.
Wuthering Waves 3.7 substats: how to use the 60 percent line
Crit rate plus crit damage at 60 percent is a practical cutoff: below it, more substat farming pays off; above it, returns flatten .
How many good substats per Echo
An Echo rolls five substats, and two matching the target stats is usable, three is good, four or more is worth keeping . Stopping at three is the stamina-efficient policy.
How far to enhance
Enhance to +5 first and read the substats. If they miss, stop; if they hit, continue . Because enhancement cost rises steeply, the first five levels carry the best return.
Wuthering Waves 3.7 where to farm Echoes fastest
The main sources are Tacet Fields, which are daily-capped, and fixed overworld spawns that refresh with the mobs . The efficient loop is clearing Tacet Field caps and sweeping spawns on the way, not running the map at random.
Daily caps and stamina
Daily stamina is 240, or 1,680 a week . Give Echoes 40 to 50 percent of it and the rest to ascension and skill materials, because skill levels are a hard gate and Echoes are a soft upgrade.
When to stop
Stop when main stats are correct, the set is complete and crit totals hit 60 percent . Further farming returns single digits while the same stamina on skill materials returns more.
Wuthering Waves 3.7 weekly stamina math
At 1,680 stamina a week with half going to Echoes, that is about 840 stamina . Converting through Tacet Field costs and drop expectations, a week yields roughly 8 to 12 usable candidates, of which 2 to 3 are worth enhancing .
A weekly rotation
Monday to Wednesday clear Tacet Field caps, Thursday to Friday sweep spawns for missing set pieces, and the weekend enhances candidates to +5 to read substats . That ordering spends enhancement materials only on confirmed main stats.
Do not stockpile Echoes at patch end
Patch ends usually bring new characters and new sets, which lowers the marginal value of the old set . Late-patch stamina belongs to skill and ascension materials instead.
Wuthering Waves 3.7 FAQ
What if my Echo COST goes over 12?
Swap out one high-COST piece for a 1 or 3 COST replacement. A 4+4+3+1 layout already fills all 12 COST, so adding another piece means replacing, not stacking .
How much stamina is available per week?
240 per day and 1,680 per week from natural regeneration, excluding stamina items .
What did patch 3.7.2 change?
It fixed a known crash on some iOS devices; it is a bug-fix patch and does not touch Echo or progression rules .
Do I need new characters before clearing Tower of Adversity?
No. Check the main carry's skill levels and Echo main stats first; both are hard gates. Only look at the roster after those are satisfied .
Wuthering Waves 3.7 action list
- Verify your main carry's main stats: ATK in slot one, crit in slot four.
- Bring the five Echoes to 12 COST or less and complete the set first.
- Stop at 60 percent combined crit and do not refarm for a fourth substat.
- Split weekly stamina 50/50 between Echoes and skill plus ascension materials.
- Shift stamina to skill materials at patch end and stop investing in the old set.
The full substat table and per-character main stat list live in the GameHub mobile guide hub and are revised with each patch.