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Zenless Zone Zero Knightboo is an A-Rank Ether-type Bangboo, obtainable through the limited-time “Mystery of Arpeggio Fault” event. It rides a bouncing toy into battle, creating Knight’s Stars that restore Energy. With a Support agent present, Knightboo boosts allies’ ATK, making it ideal for team synergy. Its Chain Attack unleashes bouncing charges that hit multiple enemies. Knightboo shines in support-heavy teams for sustained buffs and energy recovery.
| Knightboo Details | |
|---|---|
 |
 |
HP 4210 
ATK 8863 
DEF 666 
Impact 103 
Mastery 110 Crit Rate 50% Crit DMG 100% |
|
Zenless Zone Zero Knightboo Guide: Skills
Knight, Charge Up!
Skill A
Active Skill
Jump repeatedly while riding Pale Bouncy and summon 3 Knight’s Stars. When characters come into contact with Knight’s Stars, they recover Energy.
Knight’s Chivalry
Skill B
Additional Ability
When there is at least one Support character in your squad: When characters come into contact with Knight’s Stars, their ATK increases by X for 10s.
Knight, Bouncing Charge!
Skill C
Bangboo Chain Attack
Summons 3 Pale Bouncys which stomp up to 10 times in the area ahead, each time dealing Ether DMG to enemies within its attack range.
Zenless Zone Zero Knightboo Guide: Stats & Promotions
| Optimization Level | Level Range | Base HP | Base ATK | Base DEF | Crit Rate | Crit DMG | Optimization Cost |
|---|---|---|---|---|---|---|---|
| 0 | 1/10 | 436 | 47 | 32 | 5.0% | 50.0% |  x15,000 x4 |
| 10/10 | 902 | 260 | 115 | 5.0% | 50.0% | ||
| 1 | 10/20 | 1,130 | 304 | 156 | 5.0% | 50.0% | x35,000 x12 |
| 20/20 | 1,648 | 541 | 248 | 5.0% | 50.0% | ||
| 2 | 20/30 | 1,875 | 716 | 288 | 5.0% | 50.0% | x75,000x20 |
| 30/30 | 2,394 | 953 | 381 | 5.0% | 50.0% | ||
| 3 | 30/40 | 2,622 | 1,391 | 422 | 5.0% | 50.0% | x125,000 x10 |
| 40/40 | 3,140 | 1,627 | 515 | 5.0% | 50.0% | ||
| 4 | 40/50 | 3,367 | 2,723 | 556 | 5.0% | 50.0% | x250,000x20 |
| 50/50 | 3,885 | 2,960 | 648 | 5.0% | 50.0% | ||
| 5 | 50/60 | 4,113 | 5,588 | 688 | 5.0% | 50.0% | ___ |
| 60/60 | 4,632 | 5,825 | 781 | 5.0% | 50.0% |
| | | |
| 500,000 | 4 | 32 | 30 |
Zenless Zone Zero Knightboo Guide: Skill Enhancement
| System Optimization (Promotion) | Requirements | Cost | Result |
| 10/20 | x4x15,000 | Active Skill Level +1 Bangboo Chain Attack Level +1 | |
| 20/30 | Inter-Knot Reputation: Certified Proxy | x12x35,000 | Active Skill Level +1 Bangboo Chain Attack Level +1 |
| 30/40 | Inter-Knot Reputation: Senior Proxy | x20x75,000 | Active Skill Level +1 Bangboo Chain Attack Level +1 |
| 40/50 | Inter-Knot Reputation: Elite Proxy | x10x125,000 | Active Skill Level +1 Bangboo Chain Attack Level +1 |
| 50/60 | Inter-Knot Reputation: Legendary Proxy | x20x250,000 | Active Skill Level +1 Bangboo Chain Attack Level +1 |
| Core Upgrade | Cost | Result |
| 1 → 2 |  x1 | Active Skill Level +1 Additional Ability Level +1 Bangboo Chain Attack Level +1 |
| 2 → 3 | x1 | Active Skill Level +1 Additional Ability Level +1 Bangboo Chain Attack Level +1 |
| 3 → 4 | x1 | Active Skill Level +1 Additional Ability Level +1 Bangboo Chain Attack Level +1 |
| 4 → 5 | x1 | Active Skill Level +1 Additional Ability Level +1 Bangboo Chain Attack Level +1 |
| | | | |
| 500,000 | 4 | 32 | 30 | 4 |
Zenless Zone Zero Knightboo Guide: Best Team Comp
Zenless Zone Zero Knightboo Guide: Conclusion
Zenless Zone Zero Knightboo stands out as a fun yet tactical Bangboo, offering both energy restoration and attack buffs when paired with Support agents. Though limited in availability, its unique mechanics and team utility make it a valuable asset for strategic play. Ideal for players who prioritize synergy and sustained combat efficiency, Zenless Zone Zero Knightboo rewards thoughtful team-building. Its charming design and supportive role add depth to any Bangboo collection.
Frequently Asked Questions (F.A.Qs)
❓How do you obtain Knightboo?
Knightboo was obtainable only during the limited-time “Mystery of Arpeggio Fault” event. Players had to complete specific event stages to earn it. It is currently unavailable through the Bangboo banner or standard means, making it event-exclusive.
❓Is Knightboo good at energy recovery?
Yes—its Knight’s Stars are key to Energy regeneration. When touched, they restore Energy to the character, allowing faster Ultimates or skill reuse. This makes Knightboo useful for teams that rely heavily on skill combos and burst windows.
❓Can you still get Knightboo Core now?
No—Knightboo Core items were tied to specific stages in the “Mystery of Arpeggio Fault” event. If you didn’t participate in that event, you cannot obtain the Cores now, which limits Knightboo’s upgrade potential for latecomers.
❓Does Knightboo have healing or HP recovery?
No—Knightboo’s kit does not provide healing or HP restoration. Its focus is solely on Energy regeneration and ATK buffing, so pair it with characters or Bangboos that offer healing if needed for your team’s survival.
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