Zenless Zone Zero Sunna Banner Guide: Worth Pulling in 2.6?

Version 2.6 introduces Sunna, an S-Rank Physical Support from Angels of Delusion, launching February 6, 2026 at 11:00 AM UTC+8. Her signature Thoughtbop W-Engine offers 713 base ATK and 60% Energy Regen at Level 60 with Physical DMG buffs. Guaranteeing Sunna requires up to 28,800 Polychromes (180 pulls at 160 each). This guide analyzes whether Sunna and Thoughtbop justify investment based on team synergy, 800,000+ Denny material costs, and current meta performance.

Author: BitTopup Publish at: 2026/02/13

ZZZ 2.6 Banner Overview: What's Available

Phase 1 starts February 6, 2026 at 11:00 AM UTC+8. Server 8 ends February 27, 2026; Server 7 extends through March 4, 2026. Thoughtbop W-Engine banner runs concurrently, ending March 4, 2026 at 11:59 AM server time. Unlock Signal Search at Inter-Knot Level 8 to access limited banners.

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Featured A-Rank Agents and Rates

Phase 1 features Nangong Yu and Soldier 0 Anby with increased rates. Standard S-Rank rate: 0.6%. Soft pity starts at pull 75, averaging 78-82 pulls. Limited banner uses 50/50 system—first S-Rank has 50% chance for Sunna. Losing guarantees next S-Rank is featured character.

Pity Mechanics and Carry-Over

  • Agent banner: 90-pull hard pity
  • W-Engine banner: 80-pull hard pity, 75% featured rate
  • Agent pity carries between limited Agent phases only
  • W-Engine and Agent banners maintain separate counters
  • New players get 20% discount on first 50 Stable Channel pulls

Sunna Character Analysis: Kit and Role

Zenless Zone Zero Sunna S-Rank Physical Support character artwork

Sunna is S-Rank Physical Support with max stats: 7,896 ATK, 5,095 HP, 666 DEF, 110 Anomaly Mastery, 110 Impact. Her [Mesmerized] skill deals 500% ATK as Physical DMG with guaranteed CRIT and +50% CRIT DMG bonus—removing RNG from damage calculations.

Physical Synergy and Team Mechanics

Ether Veil grants Idol buff: +50 ATK for 30 seconds team-wide. Flat ATK bonus provides consistent value across teammates. Physical typing creates specific team requirements—Billy benefits most, while mixed-element teams dilute effectiveness since buffs don't enhance Ether/Fire dealers.

Optimal Rotation

Effective play requires understanding energy generation and buff timing. Swap frequently to apply buffs, trigger [Mesmerized] during damage windows, then swap to main DPS. Without Thoughtbop, energy management becomes critical—compensate through team composition or accept reduced buff uptime.

Thoughtbop W-Engine Analysis

Zenless Zone Zero Thoughtbop W-Engine signature weapon for Sunna

Level 60 Stats:

  • 713 base ATK
  • 60% Energy Regen

Passive generates 0.6 Energy/second off-field. Over 60 seconds, that's 36 energy—equivalent to multiple basic attacks. Enables frequent rotations and higher buff uptime.

Passive Breakdown

EX Special provides 12.5% Physical DMG per stack (max 2 stacks = 25% Physical DMG). Each stack lasts 40 seconds. Two stacks grant additional 10% ATK bonus for multiplicative scaling.

Alternative W-Engines

Weeping Cradle:

  • 684 base ATK (+24% PEN Ratio)
  • 29 less ATK than Thoughtbop
  • No energy generation
  • PEN compensates against high-defense enemies

Kaboom the Cannon:

  • 624 base ATK (+50% Energy Regen)
  • 89 less ATK than Thoughtbop
  • Comparable energy generation
  • Budget A-Rank option

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Refinement Scaling

R5 Thoughtbop increases Physical DMG buffs and ATK bonuses. With 80-pull hard pity and 75% featured rate, R5 demands substantial Polychromes. R1 provides majority of performance gains—refinements offer incremental improvements. F2P achieves competitive performance at R1.

Polychrome Investment Breakdown

Per Pull: 160 Polychromes

Sunna Guarantee (Worst Case): 28,800 Polychromes (180 pulls—losing 50/50 at 90, then hard pity)

Realistic Costs: 12,480-25,920 Polychromes (78-162 pulls accounting for soft pity and 50/50)

Budget Planning: Assume 20,000 Polychromes for safety

W-Engine Banner Costs

80-pull hard pity with 75% featured rate. No absolute guarantee like Agent banner. Unlucky scenarios need two pity cycles: 160 pulls = 25,600 Polychromes. Three out of four players secure featured W-Engine on first S-Rank pull.

Combined Investment

Worst Case (Both): 54,400 Polychromes (340 pulls)

Realistic Average: 35,000-40,000 Polychromes

Check Signal Search history before banner launch for accurate planning.

Version 2.6 Polychrome Income

Daily Commissions: 60/day = 1,260 over 21-day banner

Events + Login + Exploration: 5,140-8,340 Polychromes

Total F2P Income: 6,400-9,600 Polychromes (40-60 pulls)

Insufficient for guaranteeing Sunna without pre-existing savings. Accumulate across multiple patches.

Best Team Compositions

Zenless Zone Zero best Sunna team composition guide with Aria Billy and Nangboo

Aria-Billy-Sunna: Physical-focused. Billy as primary Physical DPS benefits directly from Sunna's buffs. Aria provides Ether Anomaly damage and utility.

Aria-Anby-Sunna: Enhanced Stun capabilities. Anby brings Electric damage and crowd control. Trades Physical focus for enemy control.

Ye Shunguang-Sunna-Zhao: Hybrid team using versatile support kit. Effectiveness decreases supporting non-Physical dealers.

Bangboo Recommendation

Nangboo The Biggest Fan: 7,896 ATK, 110 Anomaly Mastery, 50% CRIT Rate, 100% CRIT DMG, 110 Impact. Optimal for Physical compositions. Active skill contributes damage without field time.

Should You Pull Sunna?

New Players

Sunna's Physical Support role requires specific team compositions. Without built Physical DPS like Billy, her support lacks targets. First S-Rank pulls should prioritize versatile DPS or universal supports.

However, players with Billy from standard banner find Sunna highly valuable—transforms Billy into competitive endgame dealer.

Mid-Game (Inter-Knot 30-50)

Evaluate roster before pulling. Lacking Physical dealers = minimal Sunna value. Accounts with invested Physical characters but missing support find Sunna filling critical gaps.

Use Shiyu Defense progression as criteria. Struggling with Physical-weak floors? Sunna helps. Clearing comfortably? Skip and save.

Endgame Veterans (50+)

Evaluate through competitive metrics. Physical Support occupies specific niche, not universal application. Veterans incorporate Sunna into specialized Physical teams while maintaining alternatives.

Shiyu Defense floor 30 clears demonstrate viability. Competitive clear times against Physical-vulnerable enemies. Performance drops against Physical-resistant encounters—requires roster depth.

F2P Recommendations

Sunna's specialized role makes her lower priority than versatile DPS/universal supports. Skip unless you've established Physical foundations and accumulated sufficient Polychromes for guarantee.

Saving for future banners often provides better long-term value. Version 2.7+ introduces agents with potentially broader meta impact.

Is Thoughtbop Worth Pulling?

Thoughtbop provides meaningful increases, but alternatives achieve 70-85% effectiveness at lower investment. Performance gap rarely justifies 12,800-25,600 Polychrome cost. Prioritize securing Sunna over signature weapon.

Performance Gap

Weeping Cradle: 29 ATK difference = ~3-5% damage loss. Players with Weeping Cradle skip Thoughtbop without significant penalties.

Kaboom the Cannon: 89 ATK deficit = ~8-12% damage reduction. Support role prioritizes buff uptime over personal damage, making energy generation more valuable than raw ATK.

Shiyu Defense testing shows Thoughtbop teams clear 5-10 seconds faster than Kaboom teams. Matters for leaderboards, rarely affects clear success rates.

Banner Priority

Limited budgets demand strategic allocation. New agents expand roster options and team possibilities. W-Engines enhance existing characters but don't unlock new strategies. Agent banners = higher priority.

F2P achieves better progression skipping W-Engine banners entirely, focusing Polychromes on limited Agent acquisitions.

Sunna Mindscape Priority

M0 (Base): Complete support kit functionality. All essential buffs, energy mechanics, team utility exist at M0. Mindscapes = pure optimization, not mandatory.

M1: Typically 10-15% performance improvement through reduced cooldowns, enhanced buffs, or additional passives. Meaningful but non-essential.

M2/M4: Traditional power spike breakpoints with new mechanics or substantially enhanced abilities.

M2 Cost: Three total copies = 38,400-77,400 Polychromes. Exceeds cost of two different limited S-Ranks.

F2P Strategy

Stop at M0 for virtually all limited S-Ranks. Mindscape costs prevent pulling future characters, creating roster gaps. Exception: favorite characters where you sacrifice meta for preference.

Mindscape chasing creates dangerous spending patterns and sunk cost fallacy. Accept M0 as sufficient.

Material Requirements

Sunna Promotion

  • 800,000 Denny
  • 4 Basic Support Seals
  • 32 Advanced Support Seals
  • 30 Ruler Support Seals
  • Farming Time: 2-3 weeks focused farming

Sunna Skills

  • 500,000 Denny
  • 5 Basic Physical Chips
  • 15 Advanced Physical Chips
  • 50 Specialized Physical Chips
  • 1 Hamster Cage Pass (primary bottleneck)

Thoughtbop Upgrade

  • 400,000 Denny
  • 4 Basic Support Components
  • 32 Reinforced Support Components
  • 30 Specialized Support Components

Total Investment (Both): ~1,700,000 Denny

Material farming timegates power progression. Even day-one pulls require weeks of daily farming for maximum potential.

Common Mistakes to Avoid

Assuming Signature W-Engines Are Mandatory: Alternatives provide 70-85% effectiveness. Evaluate gaps objectively.

Pity Mismanagement: Track pity counts. Check Signal Search history before pulling. Avoid hitting unwanted S-Ranks that reset limited banner pity.

Pulling on Hype vs. Account Needs: Banner hype creates emotional pressure. Complete Physical teams gain minimal Sunna value. Objective roster evaluation prevents regrettable spending.

Underestimating A-Rank Value: Well-invested A-Ranks outperform under-invested S-Ranks. Pulling Sunna without promotion resources creates weaker teams than focused A-Rank investments.

Ignoring Beginner Discount: 20% discount on first 50 Stable Channel pulls provides guaranteed S-Rank value. Complete discounted pulls before chasing limited characters.

Future Banner Considerations

Phase 2: Aria (S-Rank Ether Anomaly DPS). Evaluate before committing to Sunna if interested in Anomaly teams.

Version 2.7+: Historical patterns suggest new limited agents every 3-4 weeks. Maintain 15,000-20,000 Polychrome reserves for unexpected meta releases.

When Skipping Makes Sense

Complete non-Physical rosters gain minimal value. Skipping accumulates 6,400-9,600 Polychromes during Phase 1, plus Phase 2 savings. Enables guaranteed pulls on future versatile agents.

Meta shifts occur unpredictably. Sunna's value might decrease if future Physical DPS include self-sufficient support. Conservative management accounts for uncertainty through diversified roster building.

Maximizing Polychrome Value

Daily Commissions: 60/day (15-20 minutes). Skipping costs 420 Polychromes weekly—nearly three pulls lost.

Weekly Tasks + Shiyu Defense: Substantial rewards for floor progression. Push aggressively during early patch periods.

Version 2.6 Events: 5,140-8,340 Polychromes through activities and login bonuses. Missing limited events permanently loses these sources.

Exploration Rewards: One-time Polychrome bonuses from new Hollow Zero areas and map expansions. Thorough exploration maximizes limited sources.

Master Tape Strategy

Master Tapes: Standard banner pulls

Encrypted Master Tapes: Limited character banners

Never convert Encrypted to standard—wastes limited currency on permanent content. Standard banner provides guaranteed S-Rank at 300 pulls with selection. Limited agents never enter standard pool. Prioritize Encrypted for limited content.

FAQ

How many Polychromes guarantee Sunna in ZZZ 2.6? 28,800 Polychromes for worst-case 180 pulls. Average costs: 12,480-25,920 Polychromes with soft pity starting at pull 75.

Does Thoughtbop work on other Physical agents? 713 base ATK and 60% Energy Regen benefit any Physical Support, but passive abilities specifically enhance Sunna's kit. 25% Physical DMG buff and 10% ATK bonus provide universal value for future Physical supports with similar energy requirements.

What's Sunna's best team composition? Aria-Billy-Sunna (optimal Physical comp with Billy as primary DPS). Alternatives: Aria-Anby-Sunna (enhanced Stun) or Ye Shunguang-Sunna-Zhao (hybrid damage). Pair with Nangboo The Biggest Fan Bangboo.

Should F2P pull W-Engines or save for agents? Prioritize Agent banners. Alternatives like Kaboom the Cannon provide 70-85% of signature effectiveness at lower investment. New agents expand roster options more than optimizing existing characters.

When does Sunna banner end? Server 8: February 27, 2026. Server 7: March 4, 2026. Thoughtbop W-Engine: March 4, 2026 at 11:59 AM server time (all servers).

Can Sunna work without Thoughtbop? Yes. Weeping Cradle (684 ATK + penetration) loses only 3-5% damage. Kaboom the Cannon (50% Energy Regen) maintains buff uptime while sacrificing personal damage. Both achieve competitive M0 performance.

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