Mornye Weapon Guide: Best in Slot & Alternatives

Mornye, the analytical five-star Fusion Broadblade user set to debut on December 25, 2025, during Wuthering Waves 3.0, brings a unique blend of healing, damage amplification, and team protection. As a support who alternates between a defensive baseline stance and an offensive Wide Area Observation Mode, her weapon choice is critical for optimizing her complex kit. This guide will analyze her key needs and break down the best weapons to fuel her powerful support capabilities.

Understanding Mornye's Needs

Rarity: ★★★★★｜Element: Fusion｜Weapon: Broadblade

Choosing the right weapon for Mornye starts with understanding what makes her kit tick. Her effectiveness is built on three pillars:

• Energy Regen is Paramount: Mornye's power is directly tied to her Resonance Liberation, "Critical Protocol." Its damage and critical hit potential scale dramatically with her Energy Regen stat. Furthermore, her "Interfered Marker," which boosts team damage against marked enemies, also gains potency from her Energy Regen. A weapon that provides this stat is a top priority.
• Supporting Her Support Role: A significant portion of Mornye's utility comes from healing and providing damage reduction through her skills and "Syntony Field.". Weapons that enhance her healing effectiveness or provide defensive stats like DEF can make her sustain even more reliable.
• Her gameplay involves frequent use of her Resonance Skill for healing and her Intro Skill to enter her enhanced mode. Weapons that trigger effects or restore energy upon using these skills fit perfectly into her rotation.

Mornye Best Choice

Mornye's signature 5-star Broadblade, Cosmic Orbit, is her undisputed best-in-slot option.

Cosmic Orbit

This weapon is tailor-made for her. With a massive 77% Energy Regen as its secondary stat, it directly supercharges the two core mechanics of her kit: her Ultimate's damage/crit scaling and her "Interfered Marker" team damage buff. While its unique effect is yet to be officially revealed, signature weapons typically provide a perfect synergistic bonus, such as further enhancing healing, skill damage, or team buffs based on Energy Regen. For players who want to maximize Mornye's potential and have the resources, this is the ultimate investment.

 

Mornye 5-Star Alternatives

If you don't have her signature weapon, these 5-star alternatives offer powerful and more accessible effects.

Lustrous Razor

Lustrous Razor

Stormy Resolution: Increases Energy Regen by 12.8%. When Resonance Skill is cast, Resonance Liberation DMG Bonus is increased by 7%, stacking up to 3 times. This effect lasts for 12s.

A top-tier alternative that shines for its balanced offensive and supportive capabilities.

Lustrous Razor provides a solid 36.5% Energy Regen and possesses the "Stormy Resolution" effect. This effect grants an additional 12.8% Energy Regen and, crucially, increases Resonance Liberation DMG Bonus by 7% each time her Resonance Skill is cast, stacking up to 3 times. This synergizes perfectly with Mornye's playstyle, as she uses her skill frequently for healing, which in turn ramps up the damage of her critically important Ultimate.

 

Mornye 4-Star Alternatives

For players seeking strong, readily available options, these 4-star Broadblades are fantastic choices.

Discord

Discord

Effect: When Resonance Skill is cast, restores 8 Concerto Energy. This effect can be triggered 1 time(s) every 20s.

This weapon excels at improving Mornye's skill rotation and energy economy.

Discord's "Ceaseless Aria" effect is simple yet highly effective: casting her Resonance Skill restores 8 Concerto Energy. This helps her cycle between her powerful skills and Ultimate faster, ensuring her healing fields and damage buffs have higher uptime. It's an excellent choice for ensuring smooth and consistent team support.

Dauntless Evernight

Dauntless Evernight

Effect: When Intro Skill is cast, increases ATK by 8% and DEF by 15%, lasting for 15s.

Although Mornye's ultimate skill scales with DEF, prioritizing DEF for her is not the optimal strategy. For her, Energy Regen has a much higher priority than any individual ATK or DEF stat because this single attribute simultaneously boosts her ultimate's damage, its Crit Rate/Crit DMG potential, and the effectiveness of the team's "Interfered Marker" damage amplification. Therefore, this weapon should only be considered a transitional option.

 

Conclusion

Mornye's strength as a top-tier Fusion support hinges on her weapon's ability to fuel her energy-hungry kit. While her signature "Cosmic Orbit" Broadblade is the definitive best-in-slot, excellent alternatives exist.For most players, Lustrous Razor stands out as the premier alternative, brilliantly bridging her need for Energy Regen and Ultimate damage.

By selecting a weapon that caters to her need for Energy Regen and skill synergy, you'll unlock Mornye's full potential to heal, protect, and amplify your team's damage on the battlefield.