4 cost
CRIT DMG / CRIT Rate
3 cost
Fusion DMG
3 cost
Fusion DMG > ATK%
1 cost
ATK%
1 cost
ATK%
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Last updated: 24/May/2026
Best guide and build for Denia from WW (Wuthering Waves). Denia is a 5★ rarity character from the 
Fusion element who uses the Unknown type weapon.
Denia has at least one video guide available:
Last review update
Patch 3.3
Last major build/calcs update
Patch 3.3
Last profile update*
24/May/2026
*Profile update means smaller edits to echoes, stats, synergies or teams that don't require new calculations.
To learn more about Denia check the sections below. Use the tabs to quickly switch to the kind of information you're looking for.
Profile
Dreamweaver's Banquet
Basic Attack - Stagecraft Form
Perform up to 4 consecutive attacks, dealing Fusion DMG.
Basic Attack - Breakdown Form
Perform up to 4 consecutive attacks, dealing Fusion DMG.
Heavy Attack - Stagecraft Form
Consume STA to attack the target, dealing Fusion DMG.
Heavy Attack - Breakdown Form
Consume STA to pull in nearby targets, dealing Fusion DMG.
Mid-air Attack - Stagecraft Form
Consume STA to perform Mid-air Plunging Attack, dealing Fusion DMG.
Mid-air Attack - Breakdown Form
Consume STA to perform up to 4 consecutive attacks in mid-air, dealing Fusion DMG.
Mid-air Heavy Attack - Breakdown Form
Hold Normal Attack in the air to perform Mid-air Plunging Attack at the cost of STA, dealing Fusion DMG.
Dodge Counter - Stagecraft Form
Press Normal Attack shortly after a successful Dodge to attack the target, dealing Fusion DMG.
Press Normal Attack shortly after casting this skill to perform Basic Attack - Stagecraft Form Stage 4.
Dodge Counter - Breakdown Form
Press Normal Attack shortly after a successful Dodge to attack the target, dealing Fusion DMG.
Can be cast in mid-air.
Press Normal Attack shortly after casting this skill to perform Basic Attack - Breakdown Form Stage 4 or Mid-air Attack - Breakdown Form Stage 4.
Bubbles and Baits
Phantom Bubble - Stagecraft Form
Pull in nearby targets, dealing Fusion DMG.
Beckon - Breakdown Form
Pull in nearby targets, dealing Fusion DMG.
This skill shares a Cooldown with Banish - Breakdown Form.
Can be cast in mid-air.
Banish - Breakdown Form
While holding a Dark Core, replace Beckon - Breakdown Form with Banish - Breakdown Form.
Cast Banish - Breakdown Form Stage 1 to pull in nearby targets, dealing Fusion DMG. Press Normal Attack or Resonance Skill shortly after to cast Banish - Breakdown Form Stage 2.
Banish - Breakdown Form Stage 2 consumes all Dark Cores, dealing Fusion DMG. For each Dark Core consumed, the DMG Multiplier of the attack is increased by 150%.
The skill deals Resonance Liberation DMG.
This skill shares a Cooldown with Beckon - Breakdown Form.
Can be cast in mid-air.
Final Act
Final Act - Stagecraft Form
Deal Fusion DMG.
After performing this skill, obtain Entropy Shift: Breakdown Form for 12s, then switch to Breakdown Form.
Final Act - Breakdown Form
When Conformal Charge is full, consume all Conformal Charge and Void Particle to perform this skill.
Deal Fusion DMG.
After casting this skill, obtain Entropy Shift: Stagecraft Form, which lasts for 30s, and then switch to Stagecraft Form.
Can be performed in mid-air.
Entropy Shift: Breakdown Form
Increases ATK by 30%.
Obtaining this effect removes the Entropy Shift: Stagecraft Form effect.
Entropy Shift: Stagecraft Form
Grants 1 point of Void Particle per second.
Obtaining this effect removes the Entropy Shift: Breakdown Form effect.
"Flawless"
Erosion Field
After casting Resonance Liberation Final Act - Breakdown Form, generate an Erosion Field, lasting for 30s. Only one Erosion Field generated by your own Resonator can exist at a time.
Erosion Field pulls in nearby targets once every 4s, dealing Fusion DMG, considered Resonance Liberation DMG.
Void Particle
When in the Breakdown Form while holding Void Particle, Normal Attack consumes Void Particle on hit and grants the following effects:
The skill DMG is considered Resonance Liberation DMG and the DMG Multiplier is increased by 50%.
Conformal Charge regenerates 100% faster.
Resonance Mode - Fusion Burst
While in Resonance Mode - Fusion Burst, Denia gains the following effects:
Each time when the following skills deal damage, inflict 2 stacks of Fusion Burst on the target. The same skill can only trigger this effect once every 2s against the same target.
Intro Skill It's Been A While!, Intro Skill Knock Knock, Resonance Liberation Final Act - Stagecraft Form, Resonance Liberation Final Act - Breakdown Form, and Erosion Field.
Each time when the following skills deal damage, inflict Fusion Burst on the target. The same skill can only trigger this effect once every 2s against the same target.
Basic Attack - Stagecraft Form Stage 3, Basic Attack - Stagecraft Form Stage 4, Basic Attack - Breakdown Form Stage 3, Basic Attack - Breakdown Form Stage 4, Mid-air Attack - Breakdown Form Stage 3, and Mid-air Attack - Breakdown Form Stage 4.
When Denia is in the team, if an enemy falls to Fusion Burst DMG, it counts as caused by the nearest active Resonator.
Resonance Mode - Tune Strain
While in Resonance Mode - Tune Strain, Denia gains the following effects:
Each time when the following skills deal damage, inflict Tune Strain - Shifting on the target and reset the duration of Tune Strain - Interfered on the target. The same skill can only trigger this effect once every 2s against the same target.
Intro Skill It's Been A While!, Intro Skill Knock Knock, Resonance Liberation Final Act - Stagecraft Form, Resonance Liberation Final Act - Breakdown Form, Erosion Field, Basic Attack - Stagecraft Form Stage 3, Basic Attack - Stagecraft Form Stage 4, Basic Attack - Breakdown Form Stage 3, Basic Attack - Breakdown Form Stage 4, Mid-air Attack - Breakdown Form Stage 3 and Mid-air Attack - Breakdown Form Stage 4.
When Resonators in the team inflict Tune Strain - Shifting on the target, this target's Off-Tune Level is increased by 50% of the max. This effect can only be triggered on the same target once every 300s.
Dark Core
Denia can hold up to 3 Dark Cores.
While in the Entropy Shift states, Denia obtains 1 Dark Cores every 12s.
Denia obtains 1 Dark Cores upon casting Intro Skill It's Been A While! and Intro Skill Knock Knock.
Void Particle
Denia can hold up to 100 points of Void Particle.
While in Stagecraft Form, dealing damage through Normal Attack grants Void Particle.
Casting Intro Skill It's Been A While!, Intro Skill Knock Knock or Resonance Skill Phantom Bubble - Stagecraft Form grants 25 points of Void Particle.
Conformal Charge
Denia can hold up to 100 points of Conformal Charge.
While in Breakdown Form, dealing damage through Normal Attack or Resonance Skill Beckon - Breakdown Form grants Conformal Charge.
Casting Resonance Skill Banish - Breakdown Form Stage 2 grants 40 points of Conformal Charge.
Shattered Hours
When the target's Off-Tune Level is full, Denia can cast Tune Break on the target.
When in Resonance Mode - Tune Strain, Denia gains the following effects:
Denia can inflict Tune Strain - Shifting on the target.
Denia can respond to Tune Strain - Interfered.
When responding to Tune Strain - Interfered: For each stack of Tune Strain - Interfered on the target, each point of Denia's Tune Break Boost increases her total DMG against the target by 0.12%.
While Denia is in the team, the max stack limit of Tune Strain - Interfered on a target is increased by 1.
Vestiges of Falsehood
When Denia engages in combat in Stagecraft Form: restore Dark Cores to 2 if she has fewer than 2; restore Void Particle to 20 points if she has fewer than 20. This effect can be triggered once every 12s.
Etched Colors
While in the Entropy Shift states, Denia obtains the following effects based on her current Resonance Mode:
Resonance Mode - Fusion Burst: All Resonators in the team gain 30% Fusion DMG Bonus.
Resonance Mode - Tune Strain: All Resonators in the team gain 10 Tune Break Boost. When a Resonator in the team has an Off-Tune Buildup Rate over 100%, every 10% that runs over increases the Resonator's Tune Break Boost by 8, up to 40.
Formal Greetings
It's Been A While!
Available in Stagecraft Form, dealing Fusion DMG.
Press Normal Attack after casting this skill to cast Basic Attack - Stagecraft Form Stage 4.
Knock Knock
Available in Breakdown Form, dealing Fusion DMG.
Casting this skill grants Entropy Shift: Breakdown Form for 12s.
Unfinished Lies
When in Resonance Mode - Fusion Burst, Fusion Burst DMG against targets near the active Resonator in the team is Amplified by 60% for 30s.
This effect ends early when Denia switches modes.
When in Resonance Mode - Tune Strain, the incoming Resonator has their All DMG Amplified by 15% for 16s.
After this Resonator under this effect inflicts Tune Strain - Shifting, they gain 40% DMG Amplification instead.
This effect ends early when this Resonator is switched out or when Denia switches modes.
Silent Glows in a Dimlit Dream
Crit. DMG is increased by 30%.
When performing Resonance Skill Phantom Bubble - Stagecraft Form, or Resonance Skill Banish - Breakdown Form, Basic Attack - Breakdown Form Stage 3, Basic Attack - Breakdown Form Stage 4, Mid-air Attack - Breakdown Form Stage 3, and Mid-air Attack - Breakdown Form Stage 4, Denia becomes immune to interruption.
When Denia enters combat in Stagecraft Form, she obtains the Entropy Shift: Stagecraft Form effect for 30s.
When Denia enters combat in Breakdown Form, she obtains the Entropy Shift: Breakdown Form effect for 12s.
Tossed in the Tides of Reality
When Denia is in Resonance Mode - Fusion Burst, after a Resonator in the team inflicts Fusion Burst on the target, they gain 50% Fusion DMG Bonus for 15s. After Fusion Burst is triggered on enemies near the active Resonator in the team, Denia gains 1 stack of Degenerate Voidmatter for 15s, up to 10 stacks. Each stack of Degenerate Voidmatter causes Denia to ignore 1% of the target's Fusion RES.
This effect ends when Denia switches modes.
When Denia is in Resonance Mode - Tune Strain, her Forte Circuit effect is enhanced: After a Resonator in the team inflicts Tune Strain - Shifting on the target, their Tune Break Boost is increased by 20 for 15s, and the target's Off-Tune Level is increased by 100% of the max. This effect can only be triggered once per 300s on the same target.
This effect ends when Denia switches forms.
The DMG Multiplier of Resonance Skill Banish - Breakdown Form is increased by 40%.
Through Dark and Wind, the Erlking Follows
The DMG Multiplier of Resonance Liberation Final Act - Breakdown Form is increased by 80%.
Denia now holds up to 5 Dark Cores. While in Entropy Shift, the shortest interval at which she can obtain Dark Core is reduced to 6s.
The Entropy Shift: Stagecraft Form effect is enhanced and now grants 4 points of Void Particle per second.
The Entropy Shift: Breakdown Form effect is enhanced: Casting Resonance Liberation Final Act - Breakdown Form additionally restores 30 points of Concerto Energy.
Denia's Inherent Skill Vestiges of Falsehood is enhanced: Upon entering combat, Dark Core and Void Particle are restored to the max. This effect can be triggered once every 12s.
When the number of Dark Cores reaches the limit, casting Basic Attack - Stagecraft Form Stage 4 or Resonance Skill Phantom Bubble - Stagecraft Form consumes all Dark Cores and increases the DMG Multiplier of this skill by 1200%. The DMG dealt is considered Resonance Liberation DMG.
From the Far Beyond, to the Far Beyond
The attack interval of Erosion Field is reduced to 3s.
If Lies Patch Up a Heart
The DMG of Resonance Liberation Final Act - Stagecraft Form is increased by 100%.
May You Find Your Sun in the Silence
While in Entropy Shift states, gain 60% ATK increase and 60% Fusion DMG Bonus.
While Denia is in Resonance Mode - Fusion Burst, after Erosion Field deals damage, trigger Fusion Burst on the target based on its max limit. The Fusion Burst DMG triggered gains a 200% DMG Multiplier increase against the main target and does not remove the Fusion Burst stacks on the targets hit. The effect can be triggered on the same target up to 1 time. When the target is damaged by Resonance Liberation Final Act: Breakdown Form, the effect's trigger count is reset. The trigger count can be reset for the same target once every 2s.
While Denia is in Resonance Mode - Tune Strain, when Resonators in the team deal Tune Break DMG to Mistuned enemies in Tune Strain - Shifting, they additionally inflict 1 stack of Tune Strain - Interfered on the target. This effect can only be triggered on the same target once every 3s.
CRIT DMG
ATK%Stats data not available for this character.
Denia upgrade material information aren't available yet.
Review
Please keep in mind Wuthering Waves is a skill-based game and each character has a different playstyle, difficulty level and even special tricks and combos. Wuthering Waves is also a team based game and it's only by combining both these factors to the highest level a character can reach optimal performance.
Part of 2 of the best non-quickswap teams in the game and the best quickswap team in the game (plays into both Fusion Burst and Tune Strain);
Has lots of viable weapon alternatives in Fusion Burst mode;
Constant off-field grouping making single-target oriented DPSes excel in AoE scenarios;
Fast rotation, high damage, strong buffs and utility. Has all the markings of a top tier secondary buffer/damage dealer.
Only plays into 2 team compositions, both limited in Support options. If you don’t have either team, she has no flexibility to speak of;
Significantly more Signature weapon-dependent if used in Tune Strain mode, becomes a pretty recommended pick-up;
Uses 3 different Echo Sets in her 3 most important team options. Even her own flexibility is limited by needing multiple builds in each.
Denia is a 5-star Fusion Rectifier Hybrid character who plays into the Fusion Burst and Tune Strain team archetypes. By either focusing on strong Fusion Burst application and related team-wide buffs, or an even stronger buffing profile for Tune Strain hypercarries depending on her mode, she deals a lot of damage, rotates quickly, and has a highly specialized but equally as powerful buffing profile, featuring constant off-field grouping as well for maximal performance in both AoE and single-target situations in the teams she plays in. Let’s figure out how all of it works so we can squeeze the maximum performance out of her combat gameplay.
Denia plays into either Tune Strain or Fusion Burst depending on her Resonance Mode (configurable at will before combat). They modify the following aspects of her kit:
Her “Etched Colors” Inherent Skill (can either increase party-wide Fusion DMG or Tune Break Boost);
Most of the attacks in her kit will either apply 1 stack of Fusion Burst or Tune Strain - Shifting and reset the duration of Tune Strain - Interfered;
In Tune Strain mode, she may fill each target’s Tune Break gauge by 50% of the max once per enemy per battle;
Her Outro skill changes to either amplify party-wide Fusion Burst DMG or general DMG Amplification (15 to 40% depending on whether the buffed character can apply Tune Strain or not);
In Tune Strain mode, she obtains standard Tune Strain - Interfered response like Lynae, Mornye or Luuk.
Some Sequences are also impacted, but we will only cover her S0 kit here.
Other than her Resonance Mode, Denia’s in-game combat focus will be on accessing her second Ultimate, “Final Act - Breakdown Form”. Speaking of which, she has 2 forms she may switch between via her Ultimates: Stagecraft Form and Breakdown Form. In practice, Stagecraft Form only serves to fill the gauge Breakdown Form will utilize in order to increase damage of attacks in that form as well as the speed at which she can access her Second Ultimate.
For this purpose, Denia has several Forte resources that we won’t spend too much time detailing as her standard rotations cover all of Denia’s bases in both Resonance Modes and in both casual play and quickswap, so we will only focus on the moves her standard rotation will utilize, as follows;
Her Intro in Stagecraft Form refills a bit of “Void Particle” Forte gauge and Concerto, the same applies for her Stagecraft Form Skill and Basic 4 (accessed immediately after Intro);
She then consumes it via her Basic Attacks in Breakdown Form (after switching to it via her Ultimate) to access her 2 Skills;
Casting both Breakdown Form skills will allow her to perform her second Ultimate, placing an Erosion Field that constantly spins on the ground and applies Fusion Burst or Tune Strain while grouping enemies periodically, and she is then free to switch out.
The summary above essentially constitutes the main concepts of Denia’s rotation that will grant the following buffs to the team:
Fusion Burst application (via a lot of her attacks and periodically off-field via her second Ultimate), constant off-field grouping (via second Ultimate), Fusion Burst DMG Amplification (via Outro) and Fusion DMG Bonus (via Echo Set and Inherent Skill) in Fusion Burst mode;
Tune Strain application and duration refresh (via a lot of her attacks and periodically off-field via her Second Ultimate), constant off-field grouping (via second Ultimate), general DMG Amplification significantly increased if the target ally applies Tune Strain (via Outro) and Tune Break Boost (and some ATK% via Echo set effects and Inherent Skill).
Additionally, her Signature weapon can also boost the ATK of the team if acquired!
Denia has significant personal damage, a very specialized and equally capable buffing profile, and a fast rotation. All of these factors undeniably make her the prime Secondary choice for the teams that she plays in. However, this comes at a cost: specialization.
Denia is highly specialized towards Tune Strain and Fusion Burst teams, since most of her buffs are tailored to characters of only that archetype. While her personal DMG, general DMG Amplification capability on Outro (even if weakened) and her generalist buffs via Echo sets like Moonlit Clouds and her Signature weapon definitely exist and could make you think she has a strong general use case, she’s nowhere near comparable to a proper generalist character like Lynae, or a less specialized support like Iuno for Heavy Attacks. This is her main (and realistically, only) flaw, aside from needing to change Echo sets in between each team which can definitely cause build complications if you want to lean into her (albeit small) team flexibility.
As of her release, all Denia has access to is Fusion Burst teams with Aemeath and Tune Strain teams with Luuk Herssen, only giving her a total of 2 teams that she can play in with no certainty of additional teams coming in the future. However, the 2 teams that she does play in are stupidly strong in the current meta, work well in both single-target and AoE thanks to her, and overall if you wish have either DPS but they lack a proper premium team, and you wish to pick up a strong power upgrade to either your Aemeath or Luuk, Denia is the perfect opportunity to do this.
In conclusion, while Denia is un”denia”bly (I swear I’m funny) a highly specialized secondary buffer and damage dealer character, in the teams that she is specialized for, she’s by all accounts ideal and will make your premium Fusion Burst and Tune Strain DPS characters unleash their full potential and be top tier provided you have the correct teammates to surround them.
Build
The percentages show the performance of the weapon based on calculations, but in some cases, some weapons might provide additional QOL that can't be quantified and it would push that weapon ahead of others in the priority (and in those cases, we would put that weapon higher).
Denia calculations were done using added buffs from the following teammates:
Aemeath + Everbright Polestar + 
Trailblazing Star
Chisa + Kumokiri + 
Rejuvenating Glow
Luuk Herssen + Daybreaker's Spine + 
Rite of Gilded Revelation
Mornye + Discord + 
Halo of Starry Radiance
100.00%
100.00%
91.02%
85.68%
89.32%
79.85%
86.02%
78.31%
84.62%
75.90%
84.28%
75.90%
82.58%
73.12%
80.88%
71.12%
78.27%
67.59%
77.56%
60.36%
76.15%
66.64%
75.18%
63.31%
100.00%
Best generalist option in Fusion Burst mode, grants Denia with 20% total Fusion Burst DMG increase for a small personal damage gain and most importantly a total of 37% Fusion DMG Bonus (including Main Echo) to the incoming character via Outro. Best mix of personal damage and buffing generally.
Below you can find Main Echo options:
100.00%
Best option in Tune Strain mode, gives a 10% self-ATK buff on the 2-piece and also a 20 Tune Break Boost buff team-wide which comes in handy to maximize on DMG Taken effects from Tune Strain.
Below you can find Main Echo options:
Best choice for Denia in the Aemeath + Lupa team, with Lupa on Moonlit Clouds, in order to give the highest possible buffs to Aemeath via Lupa's Outro while maximizing on party-wide buffing and Denia's personal DMG.
Below you can find Main Echo options:
Substats: Energy Regen (Until Satisfied) > CRIT Rate = CRIT DMG > Liberation DMG% ≥ ATK% > ATK
Liberation DMG can provide higher benefit in Tune Strain teams due to a higher reliance on Liberation DMG (absence of Fusion Burst DMG), but otherwise, ATK% is equal/slightly stronger.
All recommended endgame stats portray a fairly good quality endgame build as a goal to aim for on most characters. However, don’t treat this as an end-all-be-all, and more of a suggestion.
All stat recommendations are given at S0 for 5-stars, S6 for 4-stars, and free characters (unless specified otherwise), based on total stats in the in-game stat-screen with the character out of combat but also active in the party (and hence some buffs may or may not apply). Any other precision may be directly specified. If not specified, Energy Regen requirements are estimated in the character’s best team.
HP: 15500+
DEF: 1100+
ATK: 2100-2300+
Crit Rate: 70%+
Crit DMG: 270%+
Energy Regen: 108%-122%
Lower end was estimated using Aemeath + Lupa team; higher end was estimated using Aemeath + Shorekeeper
Fusion DMG%: 40%-70%
Below you can find the order of leveling the abilities for Denia.
Res. Liberation
Forte Circuit
Res. Skill
Basic Attack
Intro Skill
Intro can be skipped when levelling to save on resources at a minimal damage loss.
Gameplay and teams
Note: Some ability names written n the rotations have been shortened for ease of comprehension.
The focus of Denia’s kit is to generate 100 points of Void Particle to then consume it in Breakdown Form by switching into it via her Ultimate and casting Basic Attacks, to finally cast her 2 Skills and second Ultimate and then Outro. It makes her rotation look like this:
Echo Timing: At any point in the rotation (Fusion Burst with Reminiscence: Denia or Lioness of Glory) or Swap Cancelled right before switching out following Ultimate: Breakdown via Outro (Tune Strain with Voidwing Moth).
Intro
Basic: Stagecraft 4 (Cancel animation endlag via Skill)
Skill: Phantom Bubble (Cancel animation instantly via Ultimate)
Ultimate: Stagecraft
Basic: Breakdown 1
Basic: Breakdown 2 (Cancel animation endlag via Dash)
Dash
Basic: Breakdown 1
Basic: Breakdown 2 (Cancel animation endlag via Skill)
Skill: Banish 1
Skill: Banish 2 (Cancel animation instantly via Ultimate)
Ultimate: Breakdown
Outro
This uses Denia’s potential for animation cancels to the fullest and ensures a fast rotation that accomplishes all of her goals. However, Denia can rotate easier than this by simply doing 4 Basic Attacks without any Dash Cancels in Breakdown Form. This loses a bit of time, but is much easier to perform and applies some extra instances of Tune Strain or Fusion Burst depending oin her mode.
However, Denia can also, in the Aemeath + Lupa team, be the first character to rotate in the team. Were that to be the case, she’d need to generate extra Forte points to still have her Breakdown Form enhanced like so:
Used once only in Aemeath + Lupa + Denia (or any team where Denia rotates first)
Basic: Stagecraft 1 (Cancel animation endlag via Skill)
Skill: Phantom Bubble (Cancel animation instantly via Dash)
Dash
Basic: Stagecraft 1
Basic: Stagecraft 2
Basic: Stagecraft 3
Basic: Stagecraft 4 (Cancel animation endlag via Ultimate)
Ultimate: Stagecraft
Basic: Breakdown 1
Basic: Breakdown 2 (Cancel animation endlag via Dash)
Dash
Basic: Breakdown 1
Basic: Breakdown 2 (Cancel animation endlag via Skill)
Skill: Banish 1
Skill: Banish 2 (Cancel animation instantly via Ultimate)
Ultimate: Breakdown
Outro
Denia’s S3 makes her able to go directly into Breakdown Form upon switching into the field. This means that she can go Intro → Ultimate in the standard rotation, or start directly with her Ultimate on her Opener rotation. This can save 1 to 2.7s depending on the rotation used (Loop/Opener).
Additionally, Denia is free to utilize quickswaps during her Breakdown Form basics. This means you can swap out of - for example - her Breakdown Form Basic 2, and switch back into her later to cast Basic 3 and 4 and finish the rotation that way. She can also cast Stagecraft Form Basic Attacks to generate Forte ahead of time, overall making her rotations short, flexible and quickswap-friendly. Experiment depending on your team and feel free to see what works best!
Aemeath - Best and only DPS choice for Fusion Burst Denia, together with Aemeath they form one of the strongest teams in the entire game, excelling in both AoE and singletarget damage with a fast and easy rotation and a low reliance on Signature weapons to perform, with the only caveat being they're somewhat stranded for Supports with only Chisa and Lupa being able to draw out the team's full potential. Still, Aemeath is the main reason to be getting and using Denia and makes for a ridiculously strong team.Luuk Herssen - If Aemeath already has a strong team, but Luuk doesn't and needs a stronger fallback than Sanhua, then Denia in Tune Strain mode is his best in slot. Due to her capability to provide a stupidly strong general DMG Amplification to Luuk on her Outro, as well as ATK and Tune Break Boost buffs via her Signature and Echo set, and strong personal damage, all in a short amount of time with added constant off-field grouping to cover Luuk's AoE flaws, Denia is the ideal partner for him.Chisa Mornye 
Lupa - 3rd slot options for Denia teams depending on what team she's ran in. Chisa is ideal with Aemeath but Lupa is an excellent fallback with alternative Echo set choices which will draw just about the same performance as Chisa. Mornye on the other hand is best for Luuk on Tune Strain Denia teams while providing nothing of value to Aemeath.Fusion Burst Team
With Lupa, run Denia on Flaming Clawprint and Lupa on Moonlit Clouds. Have Denia be the first character to rotate and Outro into Lupa who Outros into Aemeath for the strongest array of buffs overall.
Tune Strain Team
Calculations
Don't use the damage output calculations as an indication on who is worth pulling or investing as those are just simulations and in day-to-day gameplay there's a lot variables and also the skill of the player is important - if you can't consistently perform the character's rotation, their damage will suffer.
As usual, don't compare the numbers between characters - especially between Main DPS and Hybrids as they fulfill different roles in the team.
The numbers below show the character's DPS (Damage Per Second) and DMG (total damage done). When selecting the rotations we prioritized achieving 100 Concerto as fast as possible and once that condition was fulfilled, we focused on maximizing the damage output. As or if new and more optimal rotations are found, we'll update the characters calculations as needed. Listed character calculations are done without buffs or any damage contribution from teammates (full solo). They only include what the character, their Weapon, Echo and gear are capable of during their ideal Burst or Concerto rotation when starting with their Intro and Resonance Liberation available.
Do note that DPS and DMG aren't perfect metrics for a character's individual value and should be taken with a grain of salt. Anything pertaining a character's relevance in the meta is addressed in our Review and Tier List, which the numbers below shouldn't be used for as an end-all-be-all to. Instead, DPS and DMG are good metrics for a character's sequence value and comparison between an individual character's different rotations. We recommend using those metrics for such purposes.
The calculations were done using added buffs from the following teammates:
Aemeath + Everbright Polestar + Trailblazing Star
Chisa + Kumokiri + Rejuvenating Glow
Luuk Herssen + Daybreaker's Spine + Rite of Gilded Revelation
Mornye + Discord + Halo of Starry Radiance
Rotation time: 6s
Denia (S6)
Denia (S5)
Denia (S4)
Denia (S3)
Denia (S2)
Denia (S1)
Denia (S0)