Sunna Build Guide in Zenless Zone Zero

Sunna finally takes center stage in Zenless Zone Zero 2.6, and she’s not here to play it safe. Her thing? Turning chaos into big, satisfying bursts of damage right when you need them. She’s the backbone for teams that rely on heavy hitters, timing your bursts, speeding up rotations, and just making everything click. This guide digs into the best ways to Sunna build, which Drive Discs and W-Engines to use, which skills to level up first, and the team setups where she turns a messy fight into something unforgettable.

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Sunna Overview

● Rarity: S Rank

Sunna is an S Rank Agent putting her right up there with the best of the best in Zenless Zone Zero.

● Attribute: Physical

As a Physical character, Sunna's damage and mark detonations are especially useful to teams that can keep the pressure up on enemies through Daze and Stun windows.

● Specialty: Support

Sunna's main job is to enable her team. She provides buffs, mark application, Quick Assist handoffs and Stun amplification, rather than just being a traditional main damage dealer.

● Combat Role: Support DPS Hybrid

Yes, she's classified as Support, but Sunna contributes some pretty meaningful damage through Cat's Gaze detonations and Veil-enhanced burst windows especially when her marks get detonated by Attack or Anomaly characters.

The thing is, Sunna is designed to make rotations feel clean and efficient. She's always opening up Ether Veil windows and can trigger Quick Assist on her heavy EX hit which lets you instantly tag your carry with almost no downtime at all. Plus she maintains Cat's Gaze from off-field and lets your on-fielder detonate marks for credited damage. This makes her especially strong in repeatable Daze → Stun → burst boss loops, but still brings value even in packed enemy waves through mark detonations.

Key Mechanics and Features

● Angel's Accord and Ether Veil: Fantasia Encore

Sunna's gameplay loop starts with her EX specials. Using them activates Angel's Accord, triggers a Bubble Pop hit and opens up Fantasia Encore just before the heavy hit lands.

● Cat's Gaze and Bubble Pop upkeep (Nail Polisher economy)

Sunna's core engine is all about Cat's Gaze which gets applied through a few different actions and gets refreshed while she's on-field. Attack or Anomaly characters then pop these marks for extra damage credited to the triggering unit. If marks fall off, Sunna's Basic Attack can reapply Bubble Pop from off-field by using up some Nail Polisher.

● Stun Routing and Burst Windows

Cat's Gaze detonates way faster against stunned enemies, and Daydream Counterpoint increases the target's Stun DMG Multiplier while fighting inside Fantasia Encore. Added to that is Stage Fright for heavy Daze generation which is basically why Sunna excels in those boss encounters that are all about repeated Stun cycles.

Skill Priority and Leveling

● Core Skill

Sunna's number one priority is all about this one. By leveling up her top skill, she gets a huge boost to her mark-to-pop package, which in turn increases the damage she deals and makes her Ether Veil payoff even stronger. Every level you put in here directly multiplies the amount of burst damage your team is capable of unleashing.

● Special Attack

Her special attack is the backbone of her overall kit. The more you level it up, the more consistently she's going to be able to open up those Veil windows and to make matters even better, she'll be able to force quick assists and get handoffs to happen a lot more smoothly, making rotations a lot faster and easier to manage.

● Basic Attack

Her basic attack focuses on consistency over pure damage output. Leveling up this attack helps maintain her mark during chaotic situations. Messy character swaps become easier to handle with upgraded basics. Extended fights benefit when she cannot stay on the field long.

● Chain Attack

Chain attacks are more of a situational thing for her, and they're mainly useful for reapplying and refreshing marks during chain phases. Still, they do come after you've got her core rotation skills locked in.

● Assist

When you upgrade her assist, it's all about improving her defensive stability and Daze pacing which in turn helps your team stay on beat and reach those Stun windows without any issues.

● Dodge

To be honest, dodge upgrades are more about quality of life and personal comfort for Sunna, rather than having a big impact on the whole team.

Best W-Engines for Sunna

Now, when it comes to W-Engines, Sunna is primarily looking for ones that boost her attack and energy regeneration. Any engine that can do one of those things or provide a teamwide buff should work pretty well for her, since those are the key things that are going to make her Angel's Accord and Ether Veil uptime as strong as possible.

Best-in-Slot: Signature W-Engine

● Signature W-Engine Thoughtbop (S Rank)

This one is pretty sweet. When Sunna is off the field, she gets an extra 0.6 energy per second. And when she unleashes an EX Special attack that deals physical damage, all her teammates get a 12.5% damage boost for 40 seconds stacking up to twice. When those two stacks kick in, the team also gets a 10% attack boost. And the more you trigger this, the longer the team buff is going to last. It's basically the perfect engine for her tempo-focused support role keeping her rotation online and making sure the team always has that one extra bit of oomph.

Alternative W-Engines

● Weeping Cradle (S Rank)

This one gives you pen ratio and off-field energy regen plus it ramps up the damage that your team takes which can be pretty useful in those longer fights.

● Ether Veil

This one gives you energy regen and big teamwide damage and HP buffs whenever you get your Ether Veil up and running or even just extend it for a bit.

● Kaboom the Cannon (A Rank)

Grants you a bunch of energy regen, and also hands out stacking attack buffs for the whole team whenever they attack.

● GBO

Sunna's Energy Regen and CRIT Rate against teams affected by Attribute Counter get a nice little boost.

● Bashful Demon (A Rank)

This set gives your squad a nice buff of ATK when you use an EX Special and that Ice DMG isn't really going to impact Sunna too much.

Best Drive Discs for Sunna

4-Piece Drive Disc Options

● Moonlight Lullaby

The 2-piece bonus gives us 20% Energy Regen, and while the 4-piece doesn't seem super impactful, it does give your squad a nice 18% damage boost for 25 seconds whenever you use an EX or go all out with an Ultimate. Considering Sunna's rotation is always about pressing those big buttons the buff will probably always be on.

● Astral Voice

The 2-piece set gives us a nice ATK bonus of 10%. The 4-piece is where things get really cool. Astral stacks up whenever someone uses a Quick Assist, boosting the damage of the incoming ally. This is a perfect fit for Sunna's forced Quick Assist playstyle, which is a key part of how she works.

2-Piece Drive Disc Options

● Swing Jazz

This one will give you that all-important Energy Regen to keep your EX and Ultimate loop running smoothly.

● Hormone Punk

Does ATK boost anyone? This one just plain improves the strength of the buffs you give to your team.

● Shockstar Disco

Adding a bit of Impact to the mix can really help you get to Stun windows faster and accelerate those burst loops.

What Level to Pull for Sunna?

● Low Budget (M0S0)

At this level, Sunna is a solid Support already, just doing the basics opening Veils, tagging enemies and making clean handoffs. Mistakes are still pretty costly, though.

● Mid Budget (M1S0)

Add a bit of extra starting Energy and the stacking DEF shred from mark pops and you'll see a nice boost to boss damage over repeated cycles.

● Standard Budget (M1S1)

This is the good stuff. You get some extra Energy to start with, plus that sweet DEF shred and the W-Engine to make your team buffs pretty much permanent.

● High Budget (M2S1 or M4S1)

At M2, you get to boost mark generation and pop damage inside Veils a bit. At M4, you get to supercharge your Ultimate-based team damage for those long boss fights.

● Unlimited Budget (M6S1 / M6S5)

If you're willing to splurge, M6 will give you some pretty sweet bonuses guaranteed crits with scaling crit damage, faster mark reapplication, and even more squad buffs on top of that.

Best Team Compositions for Sunna

● Sunna, Ye Shunguang and Zhao

● Sunna, Ye Shunguang and Dialyn

● Aria, Sunna and Lycoan

● Aria, Sunna and Yuzuha

● Alice, Sunna and Vivian

● Miyabi, Sunna and Yuzuha

These teams all benefit from Sunna's ability to force Quick Assist entries, keep those marks up and amplify your burst damage in those all-important Stun windows.

Best Mindscapes for Sunna

● M1 Loneliness Corruption Symptoms

● M2 Feline Go With the Flow

● M3 Transformation Apple

● M4 Delusion Investigation System

● M5 Galaxy Tramway

● M6 Hollow Big Bang

The Bottom Line

Sunna is a Support game-changer in Zenless Zone Zero. She turns a smooth rotation into a real fireworks display by combining Ether Veil, Cat's Gaze and all those forced Quick Assist handoffs. Whether you're melting bosses through Stuns or grinding down grouped enemies with ease, Sunna makes your team the stars of the show. For those who love smooth gameplay, reliable buffs and consistent damage boosts Sunna is one of the top Support picks out there.