Sunna Best Build Guide: W-Engines, Drive Discs, Team Comps | ZZZ 2.6

ZZZ 2.6 is dropping Sunna, the Angels of Delusion Support who basically turns your team into a highlight reel. If you’ve ever thought “my DPS is cracked, but my rotation feels scuffed,” Sunna is the fix: she sets the stage, snaps your carry in on time, and makes your burst windows feel way cleaner. In this guide, we’re keeping it practical—best build direction, Drive Discs/W-Engines that actually fit her playstyle, and the teams that let her shine in real endgame runs.

Sunna Overview

Rarity: S-Rank  |  Element: Physical  |  Class: Support

Sunna is a Physical Support built to make rotations feel clean: she reliably opens Ether Veil windows and can trigger Quick Assist on her EX heavy hit, letting you tag your carry in instantly with almost no downtime. She also keeps Cat’s Gaze cycling from off-field and lets your Attack/Anomaly on-fielder detonate marks for credited damage—especially strong in repeatable Daze → Stun → cash-out boss loops, while still farming value in packed waves through mark detonations.

 

Sunna Key mechanics & features

Angel’s Accord + Ether Veil: Fantasia Encore

Sunna’s vibe is “press one button, start the show.” Her two EX Specials flip on Angel’s Accord, trigger a Bubble Pop hit, and open Fantasia Encore right before the heavy lands. When that heavy connects, it instantly procs Quick Assist, pulling your carry in already inside the Veil—no dead air, just clean momentum.

Cat’s Gaze + Bubble Pop upkeep (Nail Polisher economy)

Her engine is Cuteness is Justice. Several actions apply Cat’s Gaze, and while Sunna’s on-field it can keep refreshing. Your Attack/Anomaly unit then “pops” the mark for extra Attribute DMG credited to the trigger. If marks drop, her Basic lets Bubble Pop re-mark from off-field by spending Nail Polisher, and Veil triggers/extensions help refund that resource.

Stun routing + burst windows

Cat’s Gaze pops faster on Stunned enemies, and Daydream Counterpoint rewards fighting inside Fantasia Encore by pushing the target’s Stun DMG Multiplier up. Pair that with Stage Fright for chunky Daze, and she shines in boss/elite loops (build Daze → Stun → cash out) while still farming value in grouped waves without extra field time.

 

Sunna Skill Priority

Core Skill	⭐⭐⭐⭐⭐ (Top)
Special Attack	⭐⭐⭐⭐⭐ (High)
Basic Attack	⭐⭐⭐⭐ (Medium)
Chain Attack	⭐⭐⭐ (Medium)
Assist	⭐⭐ (Low)
Dodge	⭐ (Low)

Start with Core Skill, this is where her real support value scales. It boosts the “mark → pop” package so your carry gets more consistent, carry-credited pop damage, and it strengthens her Veil-related payoff (the part that turns a normal Stun window into a “delete HP” window). If you’re building Sunna to enable someone else, every point here is basically a bigger multiplier on your team’s burst cycle.

Next, level Special Attack, this upgrades her main setup button that starts her support state, opens her Veil, and most importantly forces a Quick Assist handoff. Higher investment here means smoother, more reliable “set the stage → instantly tag the carry in” tempo, which is the whole reason she feels so good in fast rotations.

Then invest in Basic Attack, not for damage, but for maintenance: it helps keep her mark uptime from feeling flaky in longer fights, especially when swaps get messy and you need the cat to keep the target tagged without Sunna camping on-field.

After that, Chain Attack, great for “free” re-application and refresh during chain phases, helping you re-tag targets and keep your burst window tidy, but it’s not always available, so it comes after your core rotation buttons.

Assist next, her defensive assist is your safety + Daze pacing tool. Upgrading it improves how cleanly you stabilize pressure, keep the team from getting knocked off rhythm, and reach Stun windows on.

Dodge last, mostly QoL and personal comfort; it won’t meaningfully increase what she provides to the team unless you’re specifically playing around dodge tech.

 

Sunna Key Materials

25/75/250	4/32/30
Physical Chip	Certification Seal	Higher Dimensional Data: Bloodstained Miasma Feather	Clouded Crystalline Substance

Sunna’s kit is all about smooth handoffs — so don’t let your upgrade mats be the thing that trips you up. For the full farming list, best stages, and a quick priority checklist, hop into our complete Sunna Materials guide!

 

Sunna Best Drive Discs

4-Piece Drive Discs Selection

Moonlight Lullaby	2-Piece Set: Energy Regen +20% 4-Piece Set: When the equipper is a Support character and uses an EX Special Attack or Ultimate, the DMG dealt by all squad members increases by 18% for 25s. Repeated triggers reset the duration. Passive effects of the same name do not stack.
Moonlight Lullaby fits Sunna because she’s the kind of Support who naturally presses EX and Ultimate on rotation to kick off her team buffs and keep her “setup → handoff” loop moving. That means the set’s teamwide DMG buff is basically always online, since every refresh just piggybacks on what you’re already doing. The 2-pc Energy Regen also helps her avoid dead turns, so she can keep Veil uptime and burst pacing smooth.
Astral Voice	2-Piece Set: ATK +10% 4-Piece Set: Whenever any squad member enters the field using a Quick Assist, all squad members gain 1 stack of Astral, up to a maximum of 3 stacks, and lasting 15s. Repeated triggers reset the duration. Each stack of Astral increases the DMG dealt by the character entering the field using a Quick Assist by 8%. Passive effects of the same name do not stack.
Astral Voice is a great fit for Sunna because her whole support loop is built around forcing Quick Assist entries for your carry. If your rotation is “Sunna sets up → carry tags in,” this set turns every tag-in into a mini power spike: you stack Astral fast, refresh it easily, and the next Quick Assist entry hits harder right away. The 2-pc ATK also helps her support scaling, since her team buff keys off her starting ATK.

 

2-Piece Drive Discs Selection

Swing Jazz	2-Piece Set: Energy Regen +20%
Energy Regen keeps her EX/Ultimate loop online, so she can refresh teamwide buffs, reopen Veil windows, and keep Quick Assist handoffs flowing—no dead turns, no waiting even in long boss fights.
Hormone Punk	2-Piece Set: ATK +10%
Flat ATK% is the cleanest way to raise her support ceiling: her squad buff keys off starting ATK, so every roll boosts the carry’s window, not her field time at all.
Shockstar Disco	2-Piece Set: Impact +6%
Impact helps her do what she wants most—reach Stun faster. More Stuns mean her mark detonations ramp sooner and her Veil-based burst amplification pays off every cycle against elites and bosses.

 

Drive Discs Best Stats

Main Stats

Slot 4	ATK %
Slot 5	ATK %
Slot 6	Energy Regen

Prioritize ATK% on Slots 4–5 because her team buff scales with starting ATK, so it directly boosts your carry’s burst. CRIT/PEN/Physical are just bonus personal damage. Slot 6 favors Energy Regen to keep her buff/Veil loop nonstop; take ATK% if you’re already comfy.

 

Sub Stats

ATK%	⭐⭐⭐⭐⭐ (Top)
CRIT DMG / Rate	⭐⭐⭐⭐ (High)
PEN	⭐⭐⭐ (Mid)

For Sunna, ATK% is the clear top substat because it directly boosts the strength of her team buff (it keys off her starting ATK). CRIT comes next only to pad her own swap-in damage—her mark detonation scales with whoever pops it, and if an Anomaly unit pops it, the detonation already crits. PEN is last: it’s fine for personal damage, but it doesn’t improve her core support loop.

 

Sunna Best W-Engines

Signature W-Engine

Song of Thoughts

Base ATK: 713      Energy Regen: 60%

While off field, increases the equipper's Energy Regen by 0.6 per second. When the equipper uses an [EX Special Attack] to deal Physical DMG, grants a buff to all squad members: Increases DMG dealt by 12.5% for 40s. Can stack up to 2 times, repeated triggers reset the duration. When at 2 stacks, additionally increases ATK by 10%. Only one instance of this effect can exist in the same squad.

Her signature W-Engine is perfect because it buffs exactly what a tempo Support needs: off-field Energy Regen keeps her rotation online so she can keep re-entering, refreshing her setup, and feeding the team’s burst rhythm. When she uses her main “big button,” it grants a squad-wide damage buff with a long duration and refresh-on-trigger uptime—something she naturally maintains every cycle. Once stacked, the extra ATK also raises the ceiling of her team buff scaling.

 

Alternative W-Engine

Weeping Cradle (S-Rank)	Off-field Energy Regen keeps her rotation flowing, and when she taps in to land hits, it applies a short teamwide damage-taken style boost on the target—perfect for lining up your carry’s burst/Stun window.
Elegant Vanity (S-Rank)	This one is made for squads that swap a lot: assist/quick-entry events feed her Energy, and spending big chunks of Energy converts into a refreshable team damage buff. Sunna naturally does both, so uptime feels very “always on.”
Kaboom the Cannon (A-Rank)	A simple, reliable team ATK stacking buff triggered by allies landing hits—so it ramps while your carry is doing their normal combo, with basically zero maintenance required from Sunna. Great when you just want consistent value.

 

Sunna Pull recommendation

The recommended pull priority of Sunna is M0S0 > M0S1 > M1S1 > M2S1 > M6S1.

• M0S0
  Sunna already does her core Support job: she sets up the Veil, keeps enemies tagged, and funnels clean handoffs so your carry can pop marks on demand. At this tier, you mostly “feel” her limits as rotation tightness—if you miss a beat, Veil uptime and mark pressure can drift.
• M1 or S1
  With M1, she comes in with extra Energy, and mark pops start stacking a real DEF shred on the target—huge for boss/elite melts over repeated cycles.
  With S1, Suuna provides Energy Regen and team-while DMG boost to increase the team's overall DMG output. 
• M1S1
  The comfy sweet spot. Entry Energy + stacking DEF shred makes your carry’s damage climb every cycle, while the signature keeps a near-permanent team DMG boost running in the background. Sunna stops feeling like “setup tax” and starts feeling like a permanent multiplier.
• M2S1 or M4S1
  M2 is the “mark machine” upgrade: inside Veils she passively builds her resource, needs fewer hits to pop marks, and the pop hits much harder—especially when an Attack/Anomaly carry is doing the triggering. This is the big jump for players who want her loop to feel automatic and explosive.
  M4 is the “Ultimate makes everyone scarier” tier: press Ult, get a long team damage window. Great for longer boss fights where you can Ult on schedule.
• M6S1 / M6S5
  M6 turns her into a locked-in highlight reel: she enters a short “I’m not getting interrupted” state, her hits become guaranteed crits with scaling crit damage, and she can chain mark play harder by consuming resource to immediately reapply marks—plus the squad gets extra juice specifically when marks are triggered. This is pure luxury for speed-clear enjoyers and showcase comps.

 

Sunna Best Team Comp

Ye Shunguang Sunna Team

DPS	Support	Support	Bangboo
Ye Shunguang	Sunna	Zhao Dialyn	Biggest Fan Snap

Ye Shunguang + Sunna + Zhao

In Ye Shunguang + Sunna + Zhao, Zhao isn’t just a comfy bodyguard — she’s a second Ether Veil engine and a Veil-scaling buffer. With Sunna also creating Veil windows and maintaining her mark game off-field (her pet can auto-reapply the mark when none exist), you get near-constant “Veil uptime pressure,” smoother handoffs, and cleaner burst timing. Ye then gets to cash out those protected windows instead of fighting for space/time.

Ye Shunguang + Sunna + Dialyn

Here you’re trading some “all-purpose safety” for faster, cleaner Stun-to-burst conversions. Dialyn’s job is to accelerate Daze and hand your carry a premium Stun window; Sunna layers team buffs and field-based amplification so the Stun phase hits harder; Ye Shunguang then cashes out with her stance/burst routing instead of waiting for slow setups. This comp shines in boss fights and elite waves where quick Stun cycles decide the score.

Harumasa Sunna Teams

DPS	Support	Support	Bangboo
Harumasa	Sunna	Dialyn	Biggest Fan Butler

Harumasa get buffed in the 2.6 version, and Sunna can increase Harumasa's Electric DMG.

 

Anby Sunna Team

DPS	Support	Support	Bangboo
Soldier 0 Anby	Sunna	Trigger Dialyn	Snap   Butler

 

Soldier 11 Sunna Team

DPS	Support	Support	Bangboo
Soldier 11	Sunna	Lighter	Biggest Fan Snap

 

Ellen Lycaon Team

DPS	Support	Support	Bangboo
Ellen	Sunna	Lycaon Dialyn	Biggest Fan Butler

 

Angels of Delusion Team

DPS	Support	Support	Bangboo
Aria	Sunna	Yuzuha	Biggest Fan Snap

 

Conclusion

Built right, Sunna is the kind of support you notice instantly: rotations stop feeling clunky, burst timing gets cleaner, and bosses start melting in those “okay, go!” windows. If you’re pulling her (or eyeing her signature) in ZZZ 2.6, don’t let currency be the bottleneck—LDShop is a chill way to top up ZZZ fast and safely, so you can grab your pulls, finish upgrades, and get back to actually playing the game.