Image Credit: HoyoVerse

Sunna arrived with Version 2.6, “Encore for an Old Dream,” as an S-Rank Physical Support agent whose kit revolves around buffing her team, applying marks, and enabling efficient burst rotations. Her gameplay blends support utility with meaningful Physical damage via mark detonations and squadwide buffs.

In this guide we break down her role, stat priorities, best W-Engines and Drive Discs, skill leveling order, team compositions, and pull advice to help you build Sunna effectively.

Who is Sunna and What Makes Her Special?

Sunna is a Physical support agent from the group Angels of Delusion who uses a giant hammer and her companion Bubblegum to apply her Cat’s Gaze mark on enemies. While she isn’t a pure DPS character, her mark application, team ATK buffs, and forced Quick Assist mechanics make her one of the most impactful support units for physical-focused squads.

Her kit is designed to:

• Apply and refresh Cat’s Gaze marks that can be detonated by Attack or Anomaly teammates for bonus Physical damage.
• Open and extend Ether Veil windows for enhanced rotations.
• Provide squadwide ATK buffs, especially when her EX Specials activate.
• Trigger frequent Quick Assists, allowing smooth tag-outs and burst sequences even in lengthy fights.

Sunna thrives in boss fights where coordinated Stun and Veil windows can be exploited, and her mark detonation consistently boosts damage output.

Best W-Engines for Sunna

Choosing the right W-Engine is crucial to maximize her support potential. These options enhance her energy regen, team damage buffs, and rotation uptime.

Best-in-Slot

Thoughtbop (Signature W-Engine)

• Boosts energy regeneration off-field, allowing more frequent EX Specials and Ultimate use.
• Grants team damage buffs after using an EX Special, stacking attack bonuses and extending buff durations.
• Fits perfectly into Sunna’s support tempo-based playstyle.

Alternatives

• Weeping Cradle: Offers energy regen and penetration ratio boosts, useful in longer fights.
• Ether Veil: Boosts energy regen while reinforcing team damage and HP benefits tied to Ether Veil uptime.
• Kaboom the Cannon: Provides energy regen plus stacking ATK buffs for the squad.
• Bashful Demon: Grants team ATK on EX Special usage, which synergizes with Sunna’s forced Quick Assists.

Drive Disc Priorities

Drive Discs shape Sunna’s stat spread and secondary buffs. The correct sets can boost her team utility significantly.

4-Piece Drive Disc Builds

Moonlight Lullaby

• Grants energy regeneration and a squadwide damage bonus after EX or Ultimate use, aligning with Sunna’s rotation pattern.

Astral Voice

• Excellent choice because it stacks buff boosts whenever a Quick Assist is triggered, fitting perfectly with Sunna’s forced Quick Assist design.

2-Piece Drive Discs

• Swing Jazz: Helps with energy regen so Sunna can more reliably open Ether Veil windows.
• Hormone Punk: Provides a solid ATK boost that increases overall team damage output.
• Shockstar Disco: Adds Impact which can help reach Stun thresholds faster in certain encounters.

Stat Priorities and Substats

To get the most out of Sunna, focus on stats that boost her buff uptime and mark application.

Main Disc Slots Priorities:

• Slot 4: ATK% – Increases both her own mark potency and team ATK buffs.
• Slot 5: ATK% – Another layer of damage and buff strength.
• Slot 6: ATK% or Energy Regen – Choose based on how quickly you want to open Veil windows.

Key Substats:

• ATK%
• Crit Rate / Crit Damage
• Penetration Ratio
  These help both her personal damage and her team’s overall strength.

Skill Priorities and Leveling Guide

Sunna’s kit contains several abilities that all contribute to her utility. Prioritize the ones that amplify buffs, improve mark application, and tighten rotations.

Skill Level Priority:

1. Core Skill — This is the heart of Sunna’s mark and buff system, directly improving her team impact.
2. Special Attack — Strongly boosts her ability to open Veil windows and generate Quick Assists.
3. Basic Attack — Helps maintain marks in chaotic fights, reducing downtime on buff triggers.
4. Chain Attack — Useful for mark refresh and reapplication in multi-enemy scenarios.
5. Assist and Dodge — Useful but less impactful than her primary damage and support skills.

Best Team Compositions for Sunna

Sunna excels in squads that can consistently trigger mark detonations and benefit from her teamwide ATK buffs.

Team A: Physical Burst Focus

• Sunna (Support)
• Ye Shunguang (Main DPS)
• Dialyn (Stun/Utility)
  This team revolves around repeating stun or daze windows while Sunna refreshes marks and buffs the main DPS for maximum burst.

Team B: Anomaly Support Loop

• Sunna
• Aria (Anomaly DPS)
• Lycaon (Control or Secondary DPS)
  Here Sunna’s ATK buffs and forced Quick Assists help Aria consistently activate her burst potential.

General Purpose Physical Build

• Sunna
• Soldier 11
• Nekomata
  This is a beginner friendly team that benefits from Sunna’s buffing style even without premium characters.

Pulling Tips and Resource Allocation

Sunna’s exclusive character banner runs from February 6 to March 4, 2026, during Version 2.6. Her banner draws Polychromes, and reaching guaranteed acquisition can require up to 28,800 Polychromes with soft pity and pull timing.

If you are considering who to pull for, keep in mind:

• Sunna is best for Physical support comps and works extremely well with Physical DPS like Ye Shunguang.
• If your physical roster is strong, Sunna adds meaningful utility and damage.
• If your roster is weaker or focused on other damage types, you may want to prioritize characters you already have synergy with.

Final Thoughts

Sunna is a flexible and powerful support agent in Zenless Zone Zero Version 2.6 whose strengths lie in teamwide buffs, mark application, and efficient rotation cycles. Whether you want smoother burst windows or strong Physical damage amplification, she brings a lot of value to many squad builds. Her signature W-Engine Thoughtbop and strategic Drive Discs like Astral Voice help maximize her utility and keep your team performing at peak efficiency.

If you enjoy tactical play that revolves around buff control, rotation timing, and mark detonations, Sunna is one of the most compelling support options in the current version of Zenless Zone Zero.

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