Sunna Banner Overview: ZZZ 2.6 Phase 1 Essentials
Whimsy in Triple Meter launches Feb 6, 2026 22:00 UTC-5 (Server 3), ending Mar 4, 2026 11:59 UTC+8 (Server 1)—21-day window. Featured A-Ranks: Billy, Corin, Yixuan. Signature W-Engine Thoughtbop runs concurrently with separate pity.
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Banner Mechanics & Pity System
- Base rate: 0.6% per 160-Polychrome pull
- Soft pity: Pull 75-89 (6% rate increase)
- Hard pity: Pull 90 guaranteed S-Rank
- 50/50 system: First S-Rank = 50% Sunna, 50% standard
- Guarantee: Losing 50/50 = next S-Rank within 90 pulls is Sunna
- Pity carries across all limited character banners
Most S-Ranks drop at pulls 75-85 (60% of acquisitions). Average single S-Rank cost: 12,000-13,600 Polychromes.
Polychrome Cost Breakdown
Guaranteed C0: 28,800 Polychromes (180 pulls worst-case)
F2P income per patch:
- Daily Commissions: 1,260
- Hollow Zero: 13,920
- Shiyu Defense: 1,008
- Events: 900-1,700
- Total: 8,000-12,000 (15,000 with Monthly Pass)
Enter banner with 15,000+ Polychromes minimum, supplement with event income during 21 days.
Sunna Character Profile: Physical Support Specialist
Sunna's kit centers on Mesmerized state: 210-500% ATK Physical DMG as guaranteed CRITs with +100% CRIT DMG to teammates over 12s. Not a DPS—she amplifies Physical carries like Corin and Billy.
Core abilities:
- Ether Veil Idol: Squad-wide +50 ATK (30s), +30% Stun DMG Multiplier (40s)
- EX Special: Applies Mesmerized to stunned enemies, triggers buffs
- Rotation: 15-20s cycle requiring 140-160% Energy Regen
Kit Breakdown
Skill priority: Special > Ultimate > Basic > Assist > Dodge > EX Special
Passive synergies (with Thoughtbop):
- 60% Energy Regen + 0.6 energy/sec off-field
- EX Special grants 12.5% Physical DMG buff (40s, stacks 2x)
- +10% ATK at max stacks
Meta impact: Elevates Physical teams to competitive tier with Elemental compositions. Guaranteed CRIT mechanic lets DPS drop CRIT Rate to 30-40%, reallocating stats to CRIT DMG/ATK% for 20-30% damage ceiling increases.
Unique Mechanics
Mesmerized state requires stun coordination. Teams without dedicated Stunners (Anby, Lycaon, Koleda) lose 40-50% effectiveness. Combat flow demands precise timing: Sunna EX Special must land during/immediately after stun for max uptime.
Is Sunna Worth Pulling at C0?
Yes, for Physical DPS owners. C0 delivers 85-90% total value—full Mesmerized functionality, squad buffs, Stun DMG multipliers. Testing shows 15-20% faster Shiyu Defense clears vs non-Sunna Physical teams.
Base Performance
At level 60 with 2,500 ATK (Swing Jazz 4pc + ATK% Discs), Mesmerized deals 5,250-12,500 damage per proc. Real value: teammate amplification. Corin with 3,000 ATK + 200% CRIT DMG gains:
- +100% CRIT DMG (total 300%)
- Guaranteed CRITs
- +50 flat ATK
- Result: 40-50% DPS increase during 12s windows
C0 vs Other Supports
vs Nicole: Sunna provides superior burst windows (+15-20% single-target), Nicole offers persistent DEF shred and grouping. Optimal accounts run both.
vs Caesar: Sunna specializes in damage amplification, Caesar in survivability. Different roles, minimal overlap.
F2P viability: Functions at 80-85% effectiveness with 4-star W-Engines (Weeping Cradle, Kaboom the Cannon). Signature weapon optional.
Constellation Value: C1-C6 Analysis
C1: Skip (Lowest Value)
- +15 Energy/180s (overworld only)
- DEF -7% per stack (max -21%, 40s)
- Impact: 5-8% damage increase
- Verdict: Not worth 14,400 Polychrome average cost
C2: Moderate Value
- +10% ATK to Ether Veil
- Claw Sharpener: +200% ATK to Cat's Gaze every 10s (+300% for Anomaly)
- Impact: 15-18% team damage, unlocks Anomaly synergies
- Verdict: Justifiable for dedicated mains/Anomaly accounts
C4 & C6: Whale Territory
C4: Ultimate grants +18% squad DMG (60s). Cost: 57,600-86,400 Polychromes (4 copies post-C0).
C6: Focused Creation—8s guaranteed CRIT, CRIT DMG +0.03% per initial ATK (max 105%), DMG taken -40%, Cat's Gaze +50%. Cost: 115,200-144,000 total.
Impact: C6 adds 25-30% personal damage, but cumulative cost exceeds most budgets.
Recommended Stops
- F2P/Low spenders: C0 only
- Moderate spenders: C2 if Sunna is team anchor + Anomaly focus
- Whales: C4 best performance-per-constellation, C6 for completion
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Sunna Best Teams
Formula: Sunna + Physical/Anomaly DPS + Stunner (Stunner non-negotiable)
Premium Compositions
Sunna + Corin + Lycaon (Highest ceiling)
- Rotation: Lycaon EX → Stun → Sunna EX → Corin burst (15s loop)
- Lycaon's 110 Impact base outweighs Ice attribute mismatch
- Requires 140%+ Energy Regen (Sunna), 120%+ (Lycaon)
Sunna + Billy + Anby (Ranged alternative)
- Billy charged shots during Mesmerized = amplified guaranteed CRITs
- Anby provides budget stun
- 10-15% lower ceiling than Corin, safer execution
F2P Teams
Sunna + Billy + Anby (Premier F2P)
- Billy/Anby free from beginner rewards
- Easy constellation access via standard banner
Sunna + Corin + Nicole
- Nicole DEF shred stacks multiplicatively (30-35% effective increase)
- Lacks stun—requires manual application, reduces consistency
Hybrid Options
Sunna + Jane Doe + Qingyi (C2 Anomaly build)
- Jane's Assault snapshots Sunna buffs
- Exceeds pure Physical in multi-target scenarios
- Requires C2 for Claw Sharpener
Support Synergy Tiers
S-Tier: Lycaon (superior stun), Qingyi (fast stun + Anomaly), Anby (F2P accessible)
A-Tier: Koleda (Fire anti-synergy but functional stun), Nicole (DEF shred, no stun)
B-Tier: Caesar (shields, insufficient stun generation)
Best W-Engine & Drive Disc Builds
Signature vs Alternatives
Thoughtbop (Base ATK 713, 60% Energy Regen)
- +0.6 energy/sec off-field
- +12.5% Physical DMG per stack (max 25%)
- +10% ATK at max stacks
- Cost: 12,000 Polychrome average (75 pulls)
- Gap vs 4-star: 12-15%
Top Alternatives:
- Weeping Cradle (A-Rank): 45-55% Energy Regen, ATK% substats—80-85% Thoughtbop effectiveness
- Kaboom the Cannon (A-Rank): Higher ATK, lower Energy Regen (35-40%)—requires Disc compensation
- Bashful Demon (A-Rank): 40% Energy Regen, balanced—5-7% below Weeping Cradle
Verdict: F2P skip signature, use Weeping Cradle.
Drive Disc Sets
Swing Jazz 4pc (Best-in-Slot)
- +15% ally ATK on EX Special
- Stacks multiplicatively with innate buffs (20-22% total)
Alternatives:
- Swing Jazz 2pc + Freedom Blues 2pc: C2 Anomaly builds
- Swing Jazz 2pc + Hormone Punk 2pc: Early progression placeholder
Main Stats & Substats
Main stats:
- Slot 4: ATK% (mandatory)
- Slot 5: ATK% > PEN Ratio > Physical DMG%
- Slot 6: Energy Regen (mandatory)
Substat priority:
- Energy Regen (until 140-160% total)
- ATK%
- CRIT DMG > CRIT Rate
- PEN Ratio
Target: 145% Energy Regen via Slot 6 Disc + W-Engine + 2-3 substat rolls. Exceeding 160% = diminishing returns.
Pull Priority: Should You Pull?
Pull Recommended
Scenario 1: Invested Physical DPS (Billy C4+, Corin C4+) without dedicated support—15-25% damage increase
Scenario 2: Building secondary Shiyu Defense teams—Billy + Sunna + Anby = budget viable option
Scenario 3: 15,000+ Polychromes with guarantee status—secure without compromising future banners
Scenario 4: Anomaly accounts seeking versatility (requires C2)
Skip Recommended
Scenario 1: No Physical DPS investment—building full team costs 60,000+ Polychrome equivalent
Scenario 2: <10,000 Polychromes without guarantee—risk wasted pulls
Scenario 3: Prioritizing upcoming banners (Miyabi, Astra Yao, Evelyn)
Scenario 4: Current Physical teams clear all content comfortably—diminishing returns
Future Meta Considerations
Version 2.6 Phase 2: Evelyn (Ice Support), potential Miyabi rerun Version 2.7 leaks: Astra Yao (Ether DPS), new Anomaly supports
Meta may shift toward Anomaly/Ether. Evaluate Sunna's 3-4 patch relevance before committing.
Common Investment Mistakes
Constellation Trap
C1 regret: 14,400 Polychromes for 5-8% gain. Stop immediately after C0 unless targeting C2.
Sunk cost fallacy: Losing 50/50 at pull 80 doesn't justify continuing without guarantee resources.
W-Engine Misconceptions
Priority: C0 character > save for next character > signature W-Engine
Weapons never outvalue roster expansion. Sunna with Weeping Cradle > no Sunna with Thoughtbop.
Team Building Errors
No Stunner = 40-50% effectiveness loss. Mesmerized requires stun activation.
Energy Regen neglect: <140% causes 5-8s rotation delays, reducing Mesmerized uptime.
Optimal structure: Sunna + Physical DPS + Stunner (+ support if 4th slot available)
Maximizing Investment: Advanced Tips
Pre-Farm Checklist
Total cost: 4,105,000 Denny
Materials:
- Promotion (1-60): 800K Denny, 4 Basic + 32 Advanced + 30 Ruler Support Seals
- Skills (1-12): 500K Denny, 5 Basic + 15 Advanced + 50 Specialized Physical Chips, 1 Hamster Cage Pass
- Core Skills: 405K Denny, 9 Clouded Crystalline, 60 Bloodstained Miasma Feather
Physical Chips drop Tuesday/Friday/Sunday. Pre-farm 2-3 weeks before banner.
Rotation Optimization
15s optimal loop: Lycaon EX (2s) → Stun (1s) → Sunna EX (2s) → Mesmerized → Corin burst (8s) → Lycaon swap (2s)
Energy Regen breakpoints:
- 120-130%: 18-20s rotations (suboptimal)
- 140-150%: 15-17s rotations (optimal)
- 160%+: 13-15s rotations (overkill)
Skill Priority
Early (1-40): Special 8 > Ultimate 6 > Basic 4 Mid (40-55): Special 10 > Ultimate 8 > Basic 6 Endgame (60): Special 12 > Ultimate 10 > Basic 8
Max Special first for Mesmerized damage/buff potency. Ultimate second for energy. Basic lowest priority.
FAQ
Is Sunna worth pulling at C0?
Yes if you run Billy/Corin. C0 provides 85-90% total value with 15-25% team damage increases. Skip if no Physical DPS or <15,000 Polychromes without guarantee.
What are Sunna's best teams?
Premium: Sunna + Corin + Lycaon. F2P: Sunna + Billy + Anby. Hybrid (C2): Sunna + Jane Doe + Qingyi. Stunner mandatory—teams without lose 40-50% effectiveness.
How much Polychrome for guarantee?
28,800 (180 pulls) worst-case. Average 21,600 (135 pulls) with soft pity. Enter with 15,000+ minimum.
Should I pull Thoughtbop?
Only if dedicated main with excess reserves. Provides 12-15% increase over Weeping Cradle. F2P achieve 85% effectiveness with 4-star alternatives.
Can Sunna work without signature W-Engine?
Yes. Weeping Cradle reaches 80-85% Thoughtbop performance. Build 140-160% Energy Regen via Slot 6 Disc + W-Engine, maximize ATK% elsewhere.
Best Drive Disc sets?
Swing Jazz 4pc (best-in-slot): +15% ally ATK on EX Special. Main stats: Slot 4 ATK%, Slot 5 ATK%, Slot 6 Energy Regen. Substats: Energy Regen (to 140-160%) > ATK% > CRIT DMG.
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