On attack, has a chance to spawn light sources — glowing explosive effects on the field that deal damage to nearby enemies. Unlike standard projectile weapons, these light sources are placed on the field rather than launched as projectiles. The defining mechanic is Luck scaling: higher Luck directly increases the probability that each attack triggers a light source spawn.

Level scaling improves fire count, damage per source, and cooldown. High-Luck builds dramatically increase light source frequency, filling the field with overlapping explosive zones. As a self-evolving weapon, no passive slot is needed for evolution — simply max the level and open an elite chest.

Max Greatest Jubilee (Lv 8) and open an elite-drop chest after 10:00 to evolve — no passive material required (self-evolving). The post-evolution weapon name is currently unconfirmed.

• Luck stat directly scales light source spawn rate — Luck builds get disproportionate returns
• Self-evolving frees up all passive slots for offensive or utility choices without evolution overhead
• Light sources proc on field regardless of player position — deals area damage passively while moving
• Dual scaling path: level scaling improves base output, Luck scaling improves proc frequency simultaneously

• Evolution destination currently unknown
• Low Luck results in sporadic light source procs and inconsistent DPS
• Individual light source damage is modest — high-HP bosses require high Luck to accumulate meaningful damage
• Unlock requires three Eudaimonia M clears — unavailable in early-game runs

• High-Luck characters: light source proc rate increases significantly, flooding the field with damage zones quickly
• Poppea Pecorina / Luck-boosting characters: Luck investment maximizes Greatest Jubilee's proc frequency
• Imelda: +10% Growth levels the weapon faster for earlier self-evolution

• Lucky Clover: Luck increase directly raises light source proc rate (top priority)
• Spinach: +10% Might raises per-source damage
• Skull O'Maniac: additional Luck stacking maximizes proc density
• Candelabrador: area expansion widens each light source's hit zone

• X Twilight Requiem: Luck increase raises proc probability across all attacks
• IX Divine Bloodline: crit compounding on light source hits raises DPS

• Early (0–10 min): Level Greatest Jubilee and secure Lucky Clover quickly — Luck investment directly raises proc frequency. Self-evolving means no passive slot is locked for evolution, leaving full flexibility for other choices.
• Mid (10–20 min): Push to Lv8 for self-evolution. Continue building Luck to increase light source density. At moderate Luck, light sources begin appearing consistently enough to contribute reliable area damage.
• Late (20+ min): With high Luck, every attack has a high chance to spawn light sources — the field fills with overlapping explosions. Enemy clusters take continuous area damage from the layered sources.

Q: How do I unlock Greatest Jubilee?
A: Clear Eudaimonia M three times. After unlocking, it appears as a standard weapon offer in runs.

Q: What are light sources exactly?
A: Glowing explosive effects that spawn on the field when Greatest Jubilee attacks, dealing damage to nearby enemies in an area. Luck increases the probability that each attack triggers one. Higher Luck means more frequent explosions across the field.

Q: Why is self-evolution an advantage?
A: Most evolved weapons require a specific passive in an inventory slot. Self-evolving weapons reach their evolved form with only level-up investment — no passive slot consumed. This leaves maximum flexibility for other passives like Luck boosters, Spinach, or Candelabrador.