Sunna debuts as an S-Rank Physical Support in Zenless Zone Zero Version 2.6 (February 6, 2026, 11 AM UTC+8). This Angels of Delusion member transforms teams through her Mesmerized state—delivering 210-500% ATK Physical DMG with guaranteed CRIT and up to +100% CRIT DMG over 12 seconds. Build her with Energy Regen and ATK% via Moonlight Lullaby and Swing Jazz Drive Discs, paired with Thoughtbop W-Engine for 60% Energy Regen and stacking Physical DMG buffs. Her signature rotation—EX Special into Stunner-enabled Mesmerized bursts—synergizes perfectly with Ye Shunguang, Aria, and faction Bangboo support.
Sunna Character Overview: Angels of Delusion's Core Support
Sunna redefines Physical Support through her Mesmerized mechanic and squad buffs. Her Ether Veil Idol grants +50 ATK to all squad members for 30 seconds plus +30% Stun DMG Multiplier lasting 40 seconds. This dual-buff system makes her essential for Angels of Delusion teams, where coordinated bursts determine endgame success.
Angels of Delusion identity revolves around synchronized combo ultimates and sustained damage amplification. Multiple Angels members unlock enhanced Decibel generation and faction Bangboo bonuses. Sunna's Cat's Gaze and Angel's Accord skills maintain near-permanent buff uptime during proper rotations.
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Her Mesmerized state is her damage cornerstone. This 12-second window delivers Physical DMG scaling from 210-500% ATK with guaranteed CRIT and +50-100% CRIT DMG bonuses. Triggering requires precise EX Special timing followed by Stunner coordination, creating skill ceiling that rewards mastery while remaining accessible.
Sunna's Kit Breakdown
Skill priority: Special > Ultimate > Basic > Assist > Dodge > EX Special. This reflects her off-field buffer role. Her Special generates Ether Veil state underpinning team damage scaling—first investment target when allocating materials.
Max investment targets (★★★★★): Core Skill, Special Skill, Chain Attack. These form her rotation foundation and buff consistency. Level these to breakpoints unlocking additional buff duration or damage scaling before secondary abilities.
Cat's Gaze passive maintains Energy Regen efficiency off-field, generating +0.6 Energy/second with appropriate W-Engines. This synergizes with recommended gear, creating self-sustaining energy economy for frequent EX Specials without excessive field time.
Angel's Accord amplifies team utility by extending buff durations during Chain Attacks in faction combo ultimate windows. This rewards Decibel management mastery and coordinated ultimate timing, creating multiplicative damage scaling.
Best W-Engines for Sunna: Tier List
Thoughtbop (Song of Thoughts) - Signature choice
Base ATK: 713
60% Energy Regen
+0.6/s off-field energy generation
+12.5% EX Special Physical DMG per stack (40s duration, 2 stacks max)
Additional +10% ATK at 2 stacks
Weeping Cradle - S-Rank alternative
Base ATK: 684
24% PEN Ratio
+0.6/s off-field Energy Regen
Ramping +10% DMG buff (scales to +10.2% over 3s)
85-90% of Thoughtbop performance at zero Polychrome cost
Kaboom the Cannon - Premier A-Rank option
Base ATK: 624
50% Energy Regen
+2.5% ATK stacking (4 stacks max over 8s)
Compensate lower base ATK through Drive Disc substats (ATK%, CRIT Rate)
W-Engine Refinement Value
Thoughtbop refinements increase stack effectiveness but show diminishing returns. Prioritize one copy before considering refinements—R1 to R5 gap rarely justifies 14,400-28,800 Polychrome investment. Allocate resources toward team completion or Drive Disc upgrades instead.
For Weeping Cradle and Kaboom users, refinement value drops further. Incremental gains don't bridge the Thoughtbop performance gap, making these investments strategically inefficient.
Optimal Drive Disc Sets
Moonlight Lullaby 4-piece - Best-in-slot
+20% Energy Regen
+18% EX Special DMG for 25s
Aligns perfectly with Shiyu Defense/Deadly Assault encounter lengths
Swing Jazz 2-piece - Alternative foundation
+20% Energy Regen
4-piece: +15% ATK to allies on EX Special
Pair with Astral Voice 2-piece for hybrid builds prioritizing squad damage
Astral Voice 4-piece - Niche Quick Assist build
+10% ATK baseline
Astral stacks (max 3, 15s): +8% DMG per stack
Requires precise Quick Assist timing conflicting with off-field positioning
Drive Disc Slot Priority
Slot 4: ATK% (scales Mesmerized damage and Ether Veil buff)
Slot 5: Energy Regen (maintains rotation consistency)
Slot 6: ATK%, CRIT Rate, CRIT DMG, or PEN (depends on team/W-Engine)
Substat priority: ATK% > CRIT Rate > CRIT DMG > PEN > Anomaly Proficiency
Target minimums: 60% CRIT Rate, 120% CRIT DMG before heavy ATK% investment. PEN becomes valuable in endgame where enemy defense scaling reduces raw ATK efficiency. Avoid Anomaly Proficiency—Sunna lacks buildup mechanics.
Sunna Skill Priority and Leveling
Investment order: Special > Ultimate > Basic > Assist > Dodge > EX Special
Special Skill's squad ATK buff and Stun DMG Multiplier scale directly with levels, creating immediate team-wide value. Ultimate investment unlocks extended Mesmerized windows and improved guaranteed CRIT scaling. Prioritize breakpoints adding full seconds to buff duration (every 2-3 levels) over incremental damage increases.
Basic Attack and Assist provide marginal returns. Raise to level 4-6 before maxing primary skills for resource efficiency.
Breakthrough Materials (Level 1-60)
25 Basic, 75 Advanced, 250 Specialized Physical Chips
5 Hamster Cage Passes
9 Clouded Crystalline Substance
60 Expert Challenge Materials
Total Denny: 4,105,000 (Ascension 800k, Skills 2,905k, W-Engine 400k)
Farming routes:
Specialized Physical Chips: Tuesday/Friday/Sunday Combat Simulation (higher difficulty for better drops)
Hamster Cage Passes: Hollow Zero exploration
Clouded Crystalline Substance: Deadly Assault boss encounters
Expert Challenge Materials: Event shops and limited missions before permanent farming
Angels of Delusion Combo Ultimate Mechanics
Angels faction unlocks combo ultimates with two or more members. These coordinated bursts consume Decibel energy (generated through combat actions, assists, dodges) for devastating team attacks with invulnerability frames and damage amplification.
Decibel generation accelerates through Perfect Dodges, Chain Attacks, and faction skill interactions. Sunna's EX Special contributes significant Decibel while applying buffs, creating natural synergy between resource generation and optimal ultimate timing.
Optimal timing: Stunner Stun → Sunna EX Special → Combo Ultimate → Mesmerized DPS burst. This 12-second Mesmerized window aligns with typical stun durations for full damage potential.
Biggest Fan S-Rank Bangboo amplifies Angels teams through HP restoration and squad ATK increases with two faction members. Base HP 5095, ATK 7896, DEF 666. 50% CRIT Rate and 100% CRIT DMG enable meaningful damage contribution during active phases.
Top 5 Sunna Team Compositions
1. Premium Angels Triple-Team: Ye Shunguang + Sunna + Zhao
Maximizes faction bonuses through triple-member synergy
Ye Shunguang primary DPS, Sunna enables, Zhao Stunner utility
100% faction bonus uptime and optimal Biggest Fan scaling
Performance ceiling for Sunna teams
2. Hybrid Physical Burst: Sunna + Aria + Nangong Yu
Aria's Ether Anomaly (7.7% Ether Anomaly DMG per 10 AP, scales to 15.4% via Core Passive) complements Sunna's Physical focus through Disorder
Nangong Yu Stunner enables consistent Mesmerized triggers
Excels in sustained damage scenarios with compounding Disorder
3. F2P Accessible: Sunna + Billy + Physical Stunner
Billy provides Physical DPS without S-Rank investment
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4. Electro Hybrid: Sunna + Anton + Anby
Sacrifices Physical synergy for Electro Anomaly pressure
Anton Electro DPS + Anby Stunner for consistent Shock
Sunna's element-agnostic buffs provide full value despite reduced faction synergy
Use against Physical-resistant content
5. Budget Physical: Sunna + Corin + Nicole
Corin delivers respectable Physical DPS at A-Rank investment
Nicole provides defensive utility and Ether support
Prioritizes survival and consistency over peak damage
Nicole's shields enable aggressive Sunna positioning
Sunna Rotation Strategies
Standard rotation: EX Special → Stunner Stun → Sunna Mesmerized Trigger → DPS Burst → Repeat (15-20s cycle)
Execute EX Special during enemy vulnerability or before anticipated Stunner ultimates. 2-second animation provides time for Stunner Daze buildup, ensuring Mesmerized triggers coincide with maximum vulnerability. Avoid casting during enemy invulnerability or before forced phase transitions.
Energy management: Maintain 60+ Energy before critical bursts. +0.6/s off-field generation accumulates 18 Energy during 30s cycles, supplemented by on-field Basic chains and Assist follow-ups.
Dodge Counter Integration
Perfect Dodge triggers Dodge Counter windows generating bonus Decibel (8-12 energy depending on attack type). Execute 0.5-1s before attack impact. Successful Perfect Dodges accelerate combo ultimate availability by 15-20%.
Optimal sequence: Perfect Dodge → Quick Assist → EX Special. Delivers maximum Decibel generation while maintaining buff uptime.
Content-Specific Adjustments
Shiyu Defense Floors 25-30
Deploy Ye Shunguang + Sunna + Zhao + Biggest Fan
Prioritize CRIT Rate to 65%+ (floors feature elevated enemy defense)
Floor 28: Conserve Energy during shield phase for post-break burst
Floor 30: Favor Energy Regen over pure ATK for sustained multi-phase damage
Deadly Assault Boss Configurations
Maintain flexible slots around Sunna core
Physical-resistant bosses: Use Aria hybrid teams
High-Daze-threshold enemies: Premium Stunner investment
Time combo ultimates to interrupt boss casts or extend vulnerability (5-8s windows after specific patterns)
Hollow Zero Exploration
Prioritize Nicole or defensive Bangboo over pure offense
Conserve ultimates for elite/boss rooms
Sunna's Basic chains and off-field buffs handle trash efficiently
Build Mistakes to Avoid
1. Overinvesting Energy Regen Beyond 140-160% Each percentage above this threshold provides minimal benefit. Rotation timing depends more on team coordination than raw energy. Redirect substats toward CRIT and ATK%.
2. Neglecting CRIT Rate for ATK% Stacking Maintain 60%+ CRIT Rate despite Mesmerized guarantees. Performance gap between 45% and 65% CRIT Rate exceeds 15-20% effective damage across full rotations.
3. Misaligned Skill Leveling Level 8 Special vs level 4 alternatives exceeds 25% performance gap. Focus Special → Ultimate before touching secondary abilities. Accelerates endgame readiness by 10-14 days.
4. Ignoring Faction Synergy Non-faction teams sacrifice 20-30% effective damage through lost combo ultimate potential and Bangboo synergies. Delay Sunna investment until acquiring Aria, Ye Shunguang, or future faction additions.
Investment Analysis: F2P vs Premium
Minimum Viable Build (F2P)
W-Engine: Kaboom the Cannon (A-Rank)
Drive Discs: Moonlight Lullaby 4pc with 50%+ optimal substats
Skills: Special 8, Ultimate 6, others 4
Team: Sunna + Billy + Free Stunner
Investment: ~2,800,000 Denny, 180 Specialized Chips, 0 Polychrome
Performance: 70-75% of premium in Floor 25 content, 15-20% longer clears
Premium Build
W-Engine: Thoughtbop R1
Drive Discs: Moonlight Lullaby 4pc with 75%+ optimal substats
Skills: Special 10, Ultimate 10, Chain Attack 8
Team: Ye Shunguang + Sunna + Zhao + Biggest Fan
Investment: ~4,105,000 Denny, 250 Specialized Chips, 28,800 Polychrome (guaranteed)
Performance: Floor 30 clears, top 5% Deadly Assault rankings, 25-30% gains over F2P
Mindscape Breakpoint Analysis
Mindscape provides incremental improvements, not transformative spikes. M1 enhances Energy generation, M2 extends buff durations, M6 unlocks additional Mesmerized scaling. However, M0→M1 gap rarely justifies 14,400 Polychrome vs acquiring new characters.
Prioritize M0 Sunna + complete team over M1+ investment. Synergistic value of Aria, Ye Shunguang, or premium Stunner exceeds marginal Mindscape improvements.
FAQ
What is the best W-Engine for Sunna in ZZZ 2.6? Thoughtbop (Song of Thoughts) is optimal—60% Energy Regen, +0.6/s off-field generation, stacking +12.5% EX Special Physical DMG. Weeping Cradle is premium alternative, Kaboom the Cannon best F2P option with 50% Energy Regen.
Which disk drive sets work best with Sunna? Moonlight Lullaby 4pc is best-in-slot (+20% Energy Regen, +18% EX Special DMG for 25s). Alternative: Swing Jazz 2pc (+20% Energy Regen) + Astral Voice 2pc for hybrid team buffing.
How does Angels of Delusion combo ultimate work? Activates with two or more faction members, consuming Decibel energy for coordinated attacks with invulnerability frames and damage amplification. Optimal timing: during enemy stun phases. Sunna's EX Special generates significant Decibel while applying buffs.
What are top team compositions for Sunna? Premium: Ye Shunguang + Sunna + Zhao. Hybrid: Sunna + Aria + Physical Stunner. F2P: Sunna + Billy + Free Stunner. All benefit from Biggest Fan Bangboo with two Angels members.
Should I prioritize Sunna's basic attack or special skill? Special Skill first—provides squad-wide +50 ATK and +30% Stun DMG Multiplier. Order: Special > Ultimate > Basic > Assist > Dodge > EX Special.
What stats should I focus on for Sunna's disk drives? Slot 4: ATK%. Slot 5: Energy Regen. Slot 6: ATK%, CRIT Rate, or CRIT DMG. Substats: ATK% > CRIT Rate (60%+) > CRIT DMG (120%+) > PEN. Maintain Energy Regen at 140-160% total before overinvesting.