Mortefi is proof that 4-star characters can absolutely hold their own in Wuthering Waves when built correctly. He’s been a staple Sub-DPS since the game’s launch in Version 1.0 and, even now in 3.2, he’s still finding his way onto teams built around Heavy Attack DPS characters because nobody has come along to completely replace what he does.
His value proposition is simple and direct: he spends minimal time on field, fires off his Resonance Liberation to enable off-field Coordinated Attacks, and exits with his Outro Skill granting the incoming character a 38% Heavy Attack DMG Amplification for 14 seconds. That last number is what teams are really after. Characters like Jiyan, Encore, Augusta, and others whose rotations are built around Heavy Attack damage see substantial gains from that buff — enough to make Mortefi a genuine consideration even as the roster has grown.
This guide covers everything you need to build and play him properly in 3.2.
Who Is Mortefi?
Mortefi is a Tacetite research specialist from the New Federation, now settled in Huanglong. He serves as the head of the Branch of Tacetite Weaponry within the Department of Safety at Huaxu Academy in Jinzhou. His personality carries a simmering, barely-contained frustration — fitting for someone who can literally convert accumulated anger into fire. The deep red eyes and the volatile energy in his kit tell the same story.
In gameplay, he’s a 4-star Fusion Pistol Sub-DPS. Unlike many supports who are entirely off-field, Mortefi occupies an interesting hybrid space: he does real damage through his Resonance Liberation’s Coordinated Attack system, but he also provides one of the most impactful buffs for specific DPS archetypes via his Outro. You’re not picking him just for the buff or just for the damage — both matter, and both are accessible even without heavy investment.
What he brings:
- 38% Heavy Attack DMG Amplification through Outro Skill — one of the best single-stat buffs available to a Heavy Attack DPS
- Off-field Coordinated Attacks during Burning Rhapsody that fire Marcato hits on every enemy Basic Attack and Heavy Attack
- Fast rotation that generates Concerto Energy quickly, minimizing field time
- Decent on-field damage if you choose to spend more time with him
- Team-wide 20% ATK buff at Sequence 6 through his Resonance Liberation
His limits: he doesn’t provide universal support — the Heavy Attack amplification specifically benefits characters whose rotation centers on Heavy Attacks. Outside those team compositions, his Outro value drops. His Coordinated Attacks also have an internal cooldown of 0.35 seconds, so hyper-fast attack chains don’t necessarily scale his off-field damage as much as you might expect from the description alone.
Mortefi’s Kit — What’s Actually Happening
Forte Circuit — Annoyance and Fury Fugue
Mortefi’s Forte mechanic is Annoyance, which fills through Basic Attacks, Resonance Skill casts, and Intro Skill hits. When Annoyance reaches 100, his Resonance Skill is replaced with Fury Fugue — a high-speed flame barrage that deals Fusion damage classified as Resonance Skill damage. Fury Fugue is one of his primary personal damage abilities when on field.
There’s a useful interaction with his Resonance Skill: for 5 seconds after using Passionate Variation (the first stage Resonance Skill), any Normal Attack Impromptu Show that lands restores Annoyance at an accelerated rate. This window is key for quickly filling the gauge before transitioning to Fury Fugue.
Resonance Skill — Passionate Variation and Fury Fugue
His standard Resonance Skill is Passionate Variation, which deals Fusion damage and is the trigger for faster Annoyance recovery. The enhanced version when Annoyance is full — Fury Fugue — consumes all Annoyance for a burst of high-multiplier Fusion damage.
Beyond personal damage, both skills contribute to charging his Liberation quickly, which is the most important thing he needs to do in a Sub-DPS rotation.
Resonance Liberation — Burning Rhapsody (The Core of His Kit)
Burning Rhapsody is everything. When active, it grants all team members the Burning Rhapsody buff and enables Mortefi’s Coordinated Attack system:
- When the active character’s Basic Attack hits, Mortefi launches 1 Marcato Coordinated Attack
- When the active character’s Heavy Attack hits, Mortefi launches 2 Marcato Coordinated Attacks
- Mortefi can trigger one Coordinated Attack every 0.35 seconds (internal cooldown)
Each Marcato hit deals Fusion damage and scales off Mortefi’s ATK and CRIT stats. The reason Heavy Attack characters benefit most is that Heavy Attacks trigger twice the Coordinated Attacks per hit, and characters like Jiyan spend their entire Liberation window spamming Heavy Attacks — meaning Mortefi’s off-field output multiplies dramatically in those team configurations.
His Inherent Skills enhance this further: during Burning Rhapsody, CRIT DMG on his Marcato hits is increased by 30%.
Outro Skill — Violent Finale
The reason teams want Mortefi. When he swaps off-field after Burning Rhapsody, the incoming character gains 38% Heavy Attack DMG Amplification for 14 seconds or until they leave the field. For a character like Jiyan whose Liberation window is built almost entirely around Heavy Attack-classified hits, this is a transformative buff. It applies equally well to Encore’s Cosmos Rave, Augusta’s Time Stop window, and any other character whose primary damage is Heavy Attack-scaled.
At Sequence 6, his Resonance Liberation also grants all team members a 20% ATK boost for 20 seconds — turning him into a dual buffer with both Heavy Attack amplification and team ATK support.
Best Weapons for Mortefi
1. Static Mist (5-Star — Best in Slot)
The recommended 5-star for Mortefi. It provides CRIT Rate as a substat — valuable since his Marcato Coordinated Attacks need to crit consistently to maximize off-field damage — along with Energy Regen and a passive that boosts ATK of the next character on field by 10%. That last effect stacks on top of his Outro Heavy Attack buff, adding a third layer of support on top of his CRIT and ER stats. A complete weapon for his kit.
2. The Last Dance (Carlotta’s Signature — Competitive Alternative)
A strong option if you happen to have Carlotta’s signature available and Carlotta is on a different team. It provides high CRIT DMG and a permanent ATK% boost, making it a solid stat stick for Mortefi’s personal damage. Its passive is less optimally suited to him than Static Mist’s, but the base stats are strong enough to compete.
3. Cadenza (4-Star — Best Accessible Option)
The most recommended 4-star for Mortefi. It provides Energy Regen and generates Concerto Energy when Resonance Skill is cast — both of which directly address his biggest rotation bottleneck. Concerto Energy generation is his primary stat priority when it comes to minimizing field time, and Cadenza delivers it reliably. Strong option for players who don’t have 5-star pistols to spare.
4. Relativistic Jet (4-Star)
Another Energy Regen and Liberation-focused weapon. Similar role to Cadenza — if you have one but not the other, either works fine for keeping his Liberation cycle smooth.
5. Undying Flame (4-Star)
Provides Resonance Skill DMG Bonus, which buffs his Fury Fugue and Passionate Variation damage. A viable option if Cadenza and Relativistic Jet aren’t available, particularly for players who want to maximize his personal damage rather than support efficiency.
6. Guardian Pistols (F2P — Early Game)
Accessible free option with ATK and Resonance Skill DMG Bonus. Not a long-term weapon but perfectly functional while farming for better options.
Best Echo Sets for Mortefi
Moonlit Clouds (5-Piece) — Best in Slot for Sub-DPS Support Role
Mortefi’s definitive echo set when running him as a Sub-DPS support. The 5-piece provides 10% Energy Regen (helping his Liberation cycle), plus a 22.5% ATK buff to the next character on field after Mortefi uses his Outro. Combined with the Outro’s 38% Heavy Attack Amplification, Mortefi’s exit becomes a dual buff delivery — Heavy Attack Deepen and ATK amplification landing simultaneously on the incoming DPS.
Main Echo: Impermanence Heron — the perfect pairing for Moonlit Clouds Mortefi. On echo skill use, it grants him 10 Resonance Energy and applies a 12% DMG Bonus to the next character to enter the field. Stack the DMG Bonus, ATK buff from Moonlit Clouds, and the 38% Heavy Attack Amplification from Outro, and the incoming DPS character receives a substantial three-layer support package.
Molten Rift (5-Piece) — Damage-Oriented Alternative
If you want Mortefi to deal more personal damage rather than maximizing support buffs, 5-piece Molten Rift provides Fusion DMG Bonus after using Resonance Skills — which he does regularly. The tradeoff is losing the ATK buff from Moonlit Clouds, which benefits the main DPS more than the extra Fusion DMG on Mortefi himself. Only recommended if you’re running Mortefi in a more on-field hybrid role.
Main Echo: Inferno Rider — for Molten Rift builds. Provides 12% Fusion DMG Bonus and 12% Basic Attack DMG Bonus after its animation, and can be swap-cancelled during its third hit.
Mixed Sets (Situational)
A 2-piece Moonlit Clouds + 2-piece Molten Rift or Lingering Tunes hybrid is usable as a placeholder during early gearing, giving Energy Regen from Moonlit and ATK or Fusion DMG from the other set. It’s functional but doesn’t reach the peak efficiency of a well-rolled 5-piece Moonlit Clouds build.
Echo Distribution & Stat Priority
Echo cost distribution: 4-3-3-1-1
Main Stats:
- 4-Cost: CRIT Rate (for consistent Marcato crits during Burning Rhapsody)
- 3-Cost: Fusion DMG Bonus or Energy Regen (one of each works well — swap one to Energy Regen if struggling with Liberation uptime)
- 1-Cost: ATK% × 2
Sub-Stat Priority:
- CRIT Rate / CRIT DMG — maintain roughly 1:2 ratio for reliable Marcato hits
- Energy Regen — at least 1–2 ER substats to cycle Liberation every rotation
- ATK%
- Fusion DMG Bonus
- Flat ATK — last resort
Energy Regen deserves special emphasis. Mortefi’s entire support contribution depends on having Liberation ready at the start of every rotation. Without sufficient ER, he’s spending rotations without Burning Rhapsody active, which means no off-field Marcato hits and no Outro 38% Heavy Attack buff landing on time. At least 1–2 Energy Regen rolls across his echoes is effectively required for comfortable play.
Skill Priority
As a Sub-DPS who spends most of his time off-field, Mortefi’s skill investment focuses on what he actually does during his brief on-field window and what maximizes his Coordinated Attack output.
Priority order: Resonance Liberation → Forte Circuit → Resonance Skill → Basic Attack → Intro Skill
Resonance Liberation is the clear top priority — it governs his Burning Rhapsody duration, the Marcato hit multipliers, and is the ability that enables everything else in his kit. Forte Circuit is next because it controls Fury Fugue’s damage, which is his hardest-hitting personal damage ability. Resonance Skill follows for Passionate Variation damage and Annoyance generation. Basic Attack is lower priority since he’s mostly off-field. Intro Skill is last — it contributes some Annoyance and a small amount of damage but doesn’t warrant early investment.
Best Teams for Mortefi in 3.2
Team 1: Jiyan + Mortefi + Verina (Classic Best Team)
The team that defined Mortefi’s value when Wuthering Waves launched, and it’s still highly effective in 3.2. Jiyan’s Qingloong Mode Liberation is almost entirely built around Heavy Attack spam — each Qingloong Strike hits as Heavy Attack damage, triggering 2 Marcato hits from Mortefi per strike. Over the duration of Jiyan’s Liberation, this adds up to significant off-field Fusion damage layered on top of Jiyan’s own output.
Mortefi’s Outro then delivers 38% Heavy Attack Amplification to Jiyan as he re-enters for his own rotation. Verina provides healing, team ATK buffs, and her 15% All-Type DMG Deepen Outro — three layers of support covering Jiyan from multiple angles.
Check the Jiyan build guide for how his side of this rotation works.
Team 2: Augusta + Mortefi + Shorekeeper
Augusta is explicitly designed around Heavy Attack burst windows, and Mortefi’s Outro is one of the best buffs she can receive. He lines up his Burning Rhapsody to generate off-field Marcato hits during her rotation, then exits with the 38% Heavy Attack buff landing precisely when she needs it most. Shorekeeper provides CRIT stats and healing. This is cited as one of Mortefi’s best current teams in 3.2 specifically because Augusta’s Heavy Attack scaling makes maximum use of his Outro.
Team 3: Encore + Mortefi + Verina
Mortefi’s Heavy Attack Amplification buffs Encore’s Cosmos Rupture finisher and any Cosmos: Heavy Attacks she lands during Cosmos Rave. This is a viable but slightly less optimal pairing compared to Jiyan because Encore’s primary damage source in Liberation is her Basic Attack chain rather than Heavy Attacks — meaning Mortefi’s Outro amplifies only part of her damage window. Still a functional and comfortable team especially for players who have both characters and need a Fusion-heavy setup.
Team 4: Galbrena + Mortefi + Lupa (Mono Fusion)
A more specialized Mono Fusion team where all three characters contribute Fusion damage. Mortefi and Lupa funnel Fusion DMG and Heavy Attack buffs into Galbrena. The team lacks dedicated healing, requiring precise dodging, but the damage synergy between the three Fusion characters is strong for players who have all three built.
Team 5: Rover (Havoc) + Mortefi + Verina (Budget F2P)
Rover (Havoc) performs Heavy Attack-classified hits frequently enough to proc Mortefi’s Coordinated Attacks at a reasonable rate. Verina handles sustain. A budget-friendly team for players who don’t have Jiyan or Augusta but still want to use Mortefi effectively.
Rotation Guide
Mortefi’s rotation philosophy is built around one goal: get Burning Rhapsody up, exit with maximum buffs applied, and minimize field time so the main DPS can maximize theirs.
Standard Sub-DPS Rotation
- Main DPS uses their opening rotation — builds Concerto Energy, uses Liberation if available, swaps out.
- Verina enters — runs her support package (Intro Skill, Resonance Skill, Starflower Blooms, Liberation if available), swaps out with Outro applying 15% DMG Deepen and ATK buff.
- Mortefi enters via Intro Skill — generates Annoyance and some Resonance Energy.
- Resonance Skill: Passionate Variation — fills Annoyance faster in the 5-second enhanced recovery window.
- Basic Attacks × 3–4 — continue filling Annoyance and Concerto Energy.
- Resonance Skill: Fury Fugue (when Annoyance is full) — deals significant Fusion damage and generates more energy.
- Echo Skill: Impermanence Heron — grants 10 Resonance Energy and applies 12% DMG Bonus to the next character.
- Resonance Liberation: Burning Rhapsody — activates off-field Coordinated Attack mode.
- Swap to Main DPS immediately — Outro applies 38% Heavy Attack DMG Amplification. Main DPS receives Moonlit Clouds ATK buff + Impermanence Heron DMG Bonus + Outro Heavy Attack Amplification simultaneously.
- Main DPS executes their damage window — Mortefi fires Marcato hits off-field on every enemy hit.
The key timing decision: ensure Concerto Energy is fully charged before using Liberation so the Outro Skill triggers on swap. Without full Concerto, you lose the 38% buff and the Moonlit Clouds ATK support.
If Liberation isn’t ready when you enter as Mortefi, use Resonance Skill → 4 Basic Attacks → Resonance Skill: Fury Fugue → Echo to build Concerto, then fire Liberation before exiting.
Sequence 4 Consideration
At Sequence 4, his Resonance Skill grants additional Coordinated Attacks — firing 4 Marcato hits when Passionate Variation or Fury Fugue lands, at 50% reduced damage. This changes the order in which to use abilities: with S4, trigger Liberation first, then the Echo, since Liberation now has higher extended uptime than Echo buff windows. Without S4, the standard order above applies.
Resonance Chain (Constellations)
Mortefi genuinely becomes more valuable with each Sequence Node, which is notable for a 4-star character. His chain is worth pursuing:
- C1 (S1): When Resonance Skill Passionate Variation or Fury Fugue hits, 4 additional Marcato Coordinated Attacks fire at 50% reduced damage. This dramatically increases his off-field damage output when he’s on-field and is a meaningful personal damage upgrade.
- C2 (S2): After using Echo Skill, restores 10 Resonance Energy (once every 20 seconds). Helps Liberation uptime noticeably, making rotations smoother.
- C3 (S3): During Burning Rhapsody, Marcato CRIT DMG increases by 30%. His Inherent Skills already include this, but sources suggest S3 amplifies it further — a solid damage boost.
- C4 (S4): Burning Rhapsody duration extended by 7 seconds. Enormously impactful — his Liberation uptime window goes from roughly 10 seconds to 17 seconds, covering far more of the main DPS’s rotation with off-field Marcato support.
- C5 (S5): Minor utility — makes him slightly better at generating Incandescence for Jinhsi, which is a niche improvement.
- C6 (S6): When Violent Finale (Liberation) is cast, all team members gain 20% ATK for 20 seconds. Turns his Liberation into a team-wide ATK support ability on top of everything else. Excellent upgrade that makes him a dual buffer.
The most impactful sequence upgrades are S1 for personal damage, S4 for Liberation uptime extension, and S6 for the team ATK buff. S4 in particular changes how the character plays — the extended duration means his Coordinated Attacks cover much more of the main DPS’s window. Getting Mortefi to S4 is a common recommendation for players who use him regularly.
Ascension & Forte Materials
To fully level Mortefi and max his key skills, you’ll need:
- LF, MF, HF, FF Whisperin Core variants — from Humanoid Tacet Discord enemies, the store, and Forgery Challenges
- Phlogiston — from the Forgery Challenge: Dim Forest Misty Forest area
- Pecok Flower — field-gathered local specialty found on the Huanglong map
- Shell Credits — standard in-game currency from quests, farming, and exploration
Push him to Level 90 first for maximum ATK scaling on his Marcato hits, then cap Resonance Liberation before other skills.
Is Mortefi Worth Building in 3.2?
Yes — specifically if you’re running any Heavy Attack-focused DPS in your roster. Jiyan, Augusta, and Encore all benefit meaningfully from his Outro, and the combination of off-field Coordinated Attacks during Burning Rhapsody adding Fusion damage plus the 38% Heavy Attack Amplification on exit makes him one of the most efficient 4-star Sub-DPS options in the game for those specific team configurations.
He’s also extremely accessible. As a 4-star character, he appears frequently from standard banner pulls, is often featured on limited banners, and his weapon options (particularly Cadenza) are available without spending on limited weapons. Even at S0, he performs his core function well. At S4 or higher, he becomes noticeably stronger.
In Version 3.2’s Tower of Adversity and Endstate Matrix: Doomsday Cycle content, teams built around Heavy Attack DPS characters remain competitive, and Mortefi fits naturally into those compositions.
Other A-Tier Characters Worth Checking Out
Rounding out your A-tier roster alongside Mortefi:
- Buling — Spectro DPS with agile combat style
- Calcharo — Electro Main DPS with technical Liberation combos
- Encore — Fusion Main DPS who benefits directly from Mortefi’s Heavy Attack buff
- Jiyan — Mortefi’s definitive best DPS partner
- Rover (Havoc) — free Havoc DPS
- Sanhua — fast Basic Attack buffer, excellent in Encore teams
- Xiangli Yao — Electro DPS with Liberation focus
- Rover (Spectro) — free Frazzle and Coordinated Attack utility
- Danjin — aggressive Havoc DPS
- Roccia — Havoc support and DPS hybrid
Mortefi is one of the game’s most straightforward characters to understand but genuinely rewarding to optimize. His rotation is short, his buff delivery is clean, and the 38% Heavy Attack Amplification from his Outro is a real number that pushes team DPS in a meaningful direction. Get his Liberation cycling every rotation, nail the swap timing so his Outro lands before the main DPS enters, and let Burning Rhapsody do the rest. He’s been here since Version 1.0 and he’s still earning his spot in 3.2.
