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Fibonacci Spritz

Overview

Item Details
English Name Fibonacci Spritz
Japanese Name フィボナッチ炭酸
Chinese Name 斐波那契苏打水
Weapon Type Spiral spray (fires fizzy water in a Fibonacci spiral; each activation has a chance to also fire another equipped weapon at random)
Obtained By Evolving Fleuret
Evolution Material External Interferer
Evolves To Unknown
Pickup Priority B

Effect and Behavior

An evolved weapon obtained from Fleuret's evolution. Fibonacci Spritz launches a spiral of fizzy water projectiles following a Fibonacci sequence pattern, and each time it fires it has a chance to trigger one of the other currently equipped weapons — firing it at random as a bonus activation.

This cross-weapon trigger mechanic scales with the quality and variety of the other weapons in the build. With multiple strong weapons equipped, each of Fibonacci Spritz's activations has a chance to chain into an unexpected additional shot from any of them — adding a probabilistic burst on top of the base spiral output. External Interferer is the evolution material.

Evolution Conditions

Max Fibonacci Spritz (Lv 8), carry External Interferer, and open an elite-drop chest after 10:00 to evolve. The post-evolution weapon name is currently unconfirmed.

Strengths

  • Fibonacci spiral pattern provides wide angular coverage, hitting multiple enemies in different directions simultaneously
  • Cross-weapon trigger supplements total damage output — the more powerful the other equipped weapons, the higher the expected bonus
  • Obtained via Fleuret evolution — accessible early in runs where Fleuret appears
  • Spiral dispersal is naturally effective against dense enemy clusters

Weaknesses

  • Cross-weapon trigger is probabilistic — bonus activations are not guaranteed per fire cycle
  • Evolution destination currently unknown
  • External Interferer must appear in the run for evolution to be possible
  • Spiral pattern spreads damage broadly, reducing single-target focus compared to directional weapons

Recommended Characters

  • Characters starting with Fleuret: direct evolution path from run start
  • Multi-weapon build characters: more high-value weapons in the build = more valuable cross-weapon trigger outcomes
  • Imelda: +10% Growth accelerates both Fleuret's evolution and parallel weapon leveling

Recommended Passives

  • External Interferer: mandatory for evolution (top priority)
  • Duplicator: Amount increase raises simultaneous spiral projectile count for wider coverage and higher burst
  • Spinach: +10% Might raises damage on both spiral hits and cross-triggered weapon hits
  • Tome: Duration increase extends how long each spiral projectile remains active

Synergistic Arcanas

  • III Tragic Princess: Amount increase further raises simultaneous spiral projectile deployment
  • IX Divine Bloodline: crit compounding on cross-triggered weapon hits raises DPS

Strategy and Tips

  • Early (0–10 min): Level Fleuret for the Fibonacci Spritz evolution while leveling other strong damage weapons in parallel. The cross-weapon trigger gains more value the more developed the other weapons are when Fibonacci Spritz comes online.
  • Mid (10–20 min): Secure External Interferer and push to Lv8 for evolution. Add Duplicator to raise spiral projectile count. Run multiple high-damage weapons — each one is a potential bonus trigger target per activation.
  • Late (20+ min): Post-evolution output is amplified. Spinach maximizes per-hit damage across both the spiral and any cross-triggered weapons, generating high sustained total output from each fire cycle.

FAQ

Q: How do I get Fibonacci Spritz?
A: Max Fleuret (Lv 8) and carry its evolution material, then open an elite-drop chest after 10:00. Requires Fleuret to appear in the run.

Q: When does the cross-weapon trigger fire?
A: Each time Fibonacci Spritz activates, there is a chance for one of the other currently equipped weapons to also fire at random as a bonus. The triggered weapon's own damage stats apply.

Q: Can you control which weapon gets triggered?
A: No — the selection is random among all currently equipped weapons. Builds where most equipped weapons are strong maximize the expected value of each trigger, but the specific weapon fired is not predictable.