Fushu Best Builds: Skill, Weapons & Teams | Duet Night Abyss

Fushu is a Hydro support introduced in Duet Night Abyss Version 1.1 on December 23. Her arrival firmly pushed skill-based team comps into the spotlight. With some of the strongest on-demand Skill DMG amplification currently available, Fushu has become a core enabler for high-ceiling compositions.

This guide breaks down Fushu’s core mechanics, Inyton priorities, recommended Demon Wedge setups and team synergies, so you can decide exactly how far to build her.

 

 

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I. Fushu Overviews

Fushu is a pure Hydro Skill DMG support. She exists to amplify her teammates’ skill output. Among the current roster, she is one of the very few characters capable of providing large, instant Skill DMG buffs with no ramp-up or stacking requirement.

On top of that, she brings healing and Sanity recovery, making her a classic high-ceiling enabler for skill-centric teams.

 

Core Mechanic

Fushu’s power doesn’t come from a single skill, but from how her entire kit revolves around Skill DMG amplification.

Her Ultimate grants teammates:

• A protective shield
• Increased attack speed
• A massive Skill DMG boost that applies instantly

 

There is no stacking or delay. Once the Ultimate is activated, the buff is fully online. The values scale extremely well into the late game.

 

So Fushu does not benefit from her own Skill DMG buff. The effect applies only to allies, which make her a dedicated support rather than a hybrid DPS.

 

II. How to Unlock and Get Fushu

Fushu can be obtained by:

• Farming Fushou's Thoughts through Immersive Theatre.
• Purchasing directly from the shop.

 

After Version 1.1 Phase 1 ends, she will be added to the weekly dungeon.

 

III. Fushu Key Introns & Analysis

INTRON I

Fushu’s Ultimate grants allies 25% Defense Penetration, a rare and extremely valuable damage modifier.

This INTRON significantly raises combat damage, especially against high-DEF enemies, elite mobs, and boss encounters.Highly impactful even at low investment.

 

INTRON II

Most important INTRON of Fushou:

• Increases the maximum number of Yunchi summons by her Skill
• Greatly increases her own Skill DMG, which directly amplifies the Skill DMG buff she provides
• Doubles Sanity recovery and healing effects

 

This is not just a numerical upgrade but fundamentally elevates her kit. For most players, INTRON II is the most recommended.

 

INTRON IV

Raises the cap on skill speed. The impact is moderate and mostly improves comfort and rotation flow for skill-spam teams.

 

INTRON VI

During her Ultimate, Fushu gains a large personal elemental damage bonus, enabling limited on-field or sub-DPS play.

This INTRON is best suited for dedicated Fushu fans or players with abundant resources. For most accounts, investing in stronger main DPS Introns offers better overall value.

 

IV. Demon Wedge Recommendations

Recommended Setup:

 

• Bahamut's Frosty Torrent
• Griffin's Seawave·Midnight Sun
• Typhon's Prime·Serenity (Hydro)
• Siren's Wings·Inspo
• Covenanter's Wings·Volition (Hydro)
• Covenanter's Blaze·Inspo (Hydro)

 

 

 

The first four are essentially mandatory.

The final two are flex picks depending on needs:

More sustain → Covenanter's Wings·Volition (Hydro)

Higher damage ceiling → Covenanter's Blaze·Inspo (Hydro)

 

Demon Wedge Effect Summary:

 

• Bahamut's Frosty Torrent: Team ATK increase
• Griffin's Seawave·Midnight Sun: Hydro DMG, Skill DMG, skill range
• Typhon's Prime·Serenity: Continuous Sanity recovery for self and allies
• Siren's Wings·Inspo: Higher Sanity cap and skill efficiency
• Covenanter's Wings·Volition: Sanity cap + Skill DMG
• Covenanter's Blaze·Inspo: ATK + skill efficiency

 

V. Weapon Choices

Exclusive Weapon

Halcyon Gracefall

Fushu’s exclusive weapon. Increases her Skill DMG and further boosts teamwide skill damage, making it the optimal choice.

 

Alternatives

Wanewraith / Rendhusk

Both are strong general-purpose options that raise Skill DMG and reduce reliance on Skill DMG sub-stats from Demon Wedges.

 

VI. Best Team & Geniemon Recommendation

Psyche + Fina + Fushu

 

• Fushu provides healing and high-frequency Sanity recovery
• Psyche can nearly loop her skill indefinitely, enabling near-permanent aerial uptime
• Fina supplies ATK buffs and damage amplification

 

This is currently one of the strongest skill-centric comps available.

 

Alternate Role

If Fina is unavailable, TRUFFLE AND FILBERT work as substitutes. And Psyche can be replaced by other main DPS options depending on roster

 

Recommended Geniemon

Anemelf

 

Heals the active character at low HP and boosts team Anemo DMG.

 

Mr Goodnight

 

Provides continuous team healing and improves base stats.

 

Dandemeow

 

Active skill heals the team and increases Anemo ATK.

 

VII. Conclusion

Fushu is a highly specialized Hydro Skill DMG support whose true strength lies in enabling skill-focused teams to scale harder the longer a fight goes on. As long as your team can consistently cast skills, her buffs will compound—especially after INTRON II, where her performance and consistency spike dramatically.

For players who enjoy skill-spam gameplay, long fights, or investing in high-ceiling compositions, Fushu is absolutely worth building.

If you want to farm materials, test teams, or manage builds more efficiently, OSLink remote play lets you control the PC version of Duet Night Abyss anytime from your mobile device. Turn spare moments into real progress and focus your time on strategy, not logistics.