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Cartethyia
Feathered Tempest
- Rarity: ★★★★★
- Alias Fleurdelys
- Attribute: Aero
- Weapon:
- Combat Roles:
- Main Damage Dealer
- Aero Erosion
- DMG Amplification
- Traction
- Gender: Female
- Class: Congenital
- Birthplace: Rinascita
- Nation: Rinascita
- Affiliation: Ragunna, Order of the Deep
- Special Dish: Knight-Errant’s Essentials
- Release Date: June 12, 2025
- Additional Titles:
- The Blessed Maiden
- Blessed Maiden of the Order of the Deep
- Queen of Gale and Tide
- Enlightened One
- How To Obtain Dance in the Storm’s Wake
Voice Actors: - English: Amanda Elizabeth Rischel
- Chinese: Yun He Zhui (云鹤追)
- Japanese: Asakawa Yū (浅川悠)
- Korean: Bae Ha-gyoung (배하경)
Introduction to Cartethyia Guide
Wuthering Waves Cartethyia Guide: Cartethyia is a 5-star Aero-element Resonator who wields a sword and excels as a primary damage dealer. With a unique combat identity centered around elegant swordplay and mid-air control, Cartethyia brings a combination of aggressive burst potential and sustained Aero Erosion application. Her kit revolves around generating and recalling Phantom Swords, entering her empowered Fleurdelys form, and maintaining relentless pressure through aerial plunge attacks and powerful finishers.
Strengths and Weaknesses
Strengths
Weaknesses
Skills and Abilities
Cartethyia Skills Priority
Cartethyia is a 5★ Aero main DPS whose damage scales with HP, giving her added durability. She switches between two forms—Cartethyia and Fleurdelys—and her playstyle focuses on summoning three swords, absorbing them for buffs, and transforming to maximize damage through Aero Erosion.
Cartethyia Abilities
Basic Attack – Sword to Carve My Forms
Basic Attack:
Heavy Attack:
Mid-Air Attack:
Dodge Counter:
Resonance Skill – Sword to Bear Their Names
Strikes enemies, launching and slamming them down to deal Aero DMG and apply 2 stacks of Aero Erosion. Counts as basic attack damage and works mid-air. Also summons the Sword of Virtue’s Shadow (1 max, lasts 20s).
Resonance Liberation – A Knight’s Heartfelt Prayers
Cartethyia transforms into Fleurdelys for 12s by dropping to 50% HP (no HP cost if already under 50%). This triggers her Manifest state, unlocking a new moveset and clearing all Resolve. Can be activated mid-air.
In this form, Fleurdelys gains +60% Aero DMG, and key moves (Basic 5, Mid-air 2, Resonance Skill) deal Aero Erosion DMG and reduce stacks by 1.
Fleurdelys builds Resolve on hit. At 120 Resolve, she can unleash Blade of Howling Squall, a powerful finisher that ends Manifest, heals 50% HP, removes all Aero Erosion stacks from targets, and amplifies their damage taken by 20% per stack (up to 5 stacks, max +100% DMG).
You can also swap back to Cartethyia early, pausing the Manifest timer and continuing the rotation freely. Mid-air versions of the swap trigger their respective plunging attacks.
Buffs During Manifest:
Buffs vanish once Manifest ends.
Traversal & Interactions
Fleurdelys can walk on water and in mid-air by consuming stamina. She reverts to Cartethyia during quest interactions or utility use.
Forte Circuit – Tempest
When Cartethyia transforms into Fleurdelys, her entire kit changes and all attacks restore Resolve on hit.
Intro Skill – Sword to Mark Tide’s Trace
Deals Aero DMG, applies Aero Erosion, and summons Sword Shadow I.
Intro Skill – Fleurdelys
Deals Aero DMG.
Outro Skill – Wind’s Divine Blessing
Aero DMG from other active Resonators is increased against enemies affected by Negative Statuses.
Cartethyia Passive Abilities
Inherent Skill – A Heart’s Truest Wishes
Team Resonators gain increased healing and improved interruption resistance. If Rover: Aero is in the team, they also recover additional Forte Gauge when using Resonance Liberation.
Inherent Skill – Wind’s Indelible Imprint
Damage increases based on the number of Aero Erosion stacks on the target.
Build Guide
Defier’s Thorn (5★ – Signature)
Best choice. Grants high HP% (72.2%), ignores 8% DEF, and boosts target’s DMG taken by 20% if they have Aero Erosion. Its HP scaling makes it stand out.
Alternative 5★ Options
Red Spring
Strong second option. Offers 24.3% Crit Rate and up to 30% Basic Attack DMG bonus, though it lags behind Defier’s Thorn.
Emerald of Genesis
Provides solid Crit Rate (24.3%) and 12.8% Energy Regen.
Blazing Brilliance
Boosts Crit DMG (48.6%) and enhances Resonance Skill performance.
F2P Option
Guardian Sword
A solid craftable pick if you don’t have a 5★ weapon. It offers 30.3% HP at R5 Lv90, which synergizes well with her HP scaling, and boosts Resonance Skill DMG. Surprisingly competitive with some 5★ weapons thanks to its stats.
Echoes
For Cartethyia, Windward Pilgrimage (5-piece) is her best-in-slot Sonata effect. The 2-piece bonus provides a +10% Aero DMG increase, while the 5-piece bonus grants 10% Crit Rate and an additional 30% Aero DMG Bonus for 10 seconds after hitting a target with Aero Erosion. This set not only boosts her primary damage type but also helps ease stat requirements by providing Crit Rate.
Echo Sets
Best Set for Aero Teams
5-piece Gusts of Welkin
Strong alternative. It also gives +10% Aero DMG (2-piece), and when Aero Erosion is applied, it boosts Aero DMG for all resonators by 15% and by another 15% for the user for 20 seconds (5-piece). While it lacks the Crit Rate boost from Windward Pilgrimage, it’s still a viable option when built around team-wide Aero Erosion application.
Sierra Gale (5-piece)
More of a temporary solution, best used in the early game. It gives a flat Aero DMG bonus from Intro Skills and can carry Cartethyia until stronger options are accessible.
Main Echo
Best Set for Aero Teams
Reminiscence: Fleurdelys
The top choice. It grants a 10% unconditional Aero DMG Bonus to the equipped resonator and an extra 10% if the user is Cartethyia or Aero Rover. This Echo works seamlessly with both Windward Pilgrimage and Gusts of Welkin sets, reinforcing her Aero-focused damage.
Team Compositions
Cartethyia thrives in teams that amplify Aero Erosion and Aero DMG, making synergy with units that apply or enhance Erosion effects a key part of maximizing her performance. Her ideal teams revolve around maintaining high Aero Erosion uptime, enabling her mid-air combos and transformation boosts efficiently.
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Cartethyia
-
Ciaccona
-
Aero Rover
Why it Works: Ciaccona ensures consistent Aero Erosion application, boosting Cartethyia’s damage and enabling her aerial combos. Aero Rover increases the Erosion stack cap and smoothens rotations with Windstrings.
Ideal For: High-end gameplay, sustained DPS, and reliable transformation uptime.
Strengths: Best performance, effortless Aero Erosion management, top synergy with Cartethyia’s scaling.
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Cartethyia
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Sanhua
-
Aero Rover
Why it Works: Though Sanhua doesn’t scale off HP like Cartethyia, she contributes solid sub-DPS and makes rotation quick. Aero Rover fills in the needed utility.
Ideal For: Free-to-play players or early-game setups.
Strengths: Affordable, energy-efficient, and smooth to play with proper form switching.
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Cartethyia
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Aalto
-
Shorekeeper
Why it Works: Aalto provides some synergy through Aero DMG boosts, and Shorekeeper’s Stellarealm offers consistent buffs regardless of Cartethyia’s scaling.
Ideal For: Mid-game builds where you want more buffer uptime.
Strengths: Easy to build, supportive, and effective despite moderate damage.
Resonance Chains
Cartethyia’s Resonance Chains offer powerful upgrades and convenience boosts that significantly improve her overall damage performance.
Resonance Chain Effects
Sequence 1: Crown Destined by Fate
Defeating enemies with Aero Erosion grants Zeal, letting her next hit transfer their Aero Erosion stacks. At 30/60/90/120 Conviction, she gains 25% Crit DMG per tier (up to 100%) until she uses her Resonance Liberation.
Sequence 2: Blade Broken by Tempest
Increases max Aero Erosion stacks by 3 after Liberation. Her next hit applies 3 stacks and triggers Aero Erosion DMG. Boosts Basic/Heavy/Dodge/Intro Skill DMG by 50% and Mid-air Attack by 200%. Each Sword recalled reduces Skill cooldown by 1s.
Sequence 3: Prisoner Hanged in the Tower
Several Fleurdelys attacks now apply 2 Aero Erosion stacks, letting her self-stack easily. Also doubles her Liberation damage multiplier.
Sequence 4: Sacrifice Made for Salvation
When any team member inflicts an elemental status (including Aero Erosion), all allies gain 20% All-Type DMG Bonus for 20s.
Sequence 5: Hope Reshaped in Storms
Grants a revive shield every 10 minutes. Her Liberation maxes Aero Erosion stacks and prevents their consumption. Aero Erosion on maxed targets auto-triggers bonus damage, and Fleurdelys deals 40% more damage to them.
Sequence 6: Freedom Found in Storm’s Wake
After using Blade of Howling Squall, the target’s Aero Erosion stacks are set to max and no longer consumed. For 30 seconds after casting key skills, when any teammate applies Aero Erosion to a max-stacked target, it instantly triggers Aero Erosion damage. These targets also take 40% more damage from Fleurdelys.
Ascension and Forte Materials
Frequently Asked Questions (F.A.Q)
❓Is she Cartethyia strong?
OP status: A top-tier Sentinel resonator that holds its own with moderate investment.
❓Does Cartethyia need Rover/Ciaconna?
Although Rover and Ciaconna remain among her top teammates, after her Forte 2, she can sustain Aero Erosion and Erosetic damage nearly solo, making her far more flexible in team comps.
❓How long has she been out—when did she debut?
Cartethyia was released on June 12, 2025, with Version 2.4 Phase 1.
