Generates a flame damage zone in the player's faced direction. The defining mechanic is kill-count empowerment: each enemy killed during the run increases the flame zone's damage output. Early in a run the damage is modest, but as kills accumulate the zone's power grows substantially — making Infernolatro a weapon that rewards aggressive play and high kill rates throughout the run.

The directional flame zone hits all enemies within its coverage area in the faced direction simultaneously. Positioning to face dense enemy clusters ensures multiple enemies enter the zone at once, compounding total damage per activation while also accumulating kills faster to drive the empowerment scaling upward.

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

• Kill-stacking produces automatic power growth throughout the run — the weapon gets stronger the more aggressively the player clears enemies
• Late-run damage is disproportionately high relative to early investment once enough kills accumulate
• Directional zone hits multiple enemies simultaneously — dense clusters yield both high damage and fast kill accumulation
• Kill count from other weapons potentially contributes to the stack, benefiting multi-weapon builds naturally

• Evolution destination currently unknown
• Early-run damage is below average before kill stacks build up — requires sustained killing to reach peak output
• Coverage limited to the faced direction — enemies approaching from sides or behind do not enter the zone
• Kill stack may reset between runs — each run starts from zero empowerment

• High-clearance characters: fast enemy killing accelerates kill-stack accumulation for earlier high-damage output
• Imelda: +10% Growth levels Infernolatro faster for earlier max-level performance
• Amount-bonus characters: more simultaneous zones improve early kill efficiency to build stacks faster

• External Interferer: mandatory for evolution; provides unique trigger effects (top priority)
• Spinach: +10% Might raises base flame zone damage — multiplied by kill-stack empowerment for compounding output
• Duplicator: Amount increase adds simultaneous zones for faster kill accumulation in early runs
• Candelabrador: Area increase widens each zone's coverage to catch more enemies per activation

• IX Divine Bloodline: crit compounding on empowered flame zone hits raises DPS and speeds kill accumulation
• III Tragic Princess: Amount increase further accelerates early kill rate for faster stack building

• Early (0–10 min): Level Infernolatro and aggressively kill enemies to build stacks. Add Duplicator early — more simultaneous zones mean faster kills and faster empowerment accumulation even when individual zone damage is still low.
• Mid (10–20 min): Carry External Interferer and push to Lv8 for evolution. By mid-run with healthy kill counts, zone damage begins to noticeably surpass baseline. Keep facing the densest enemy direction for maximum kills per second.
• Late (20+ min): With a high kill stack, the flame zone reaches peak empowerment — point it into the largest enemy wave and let compounded damage clear large sections per activation.

Q: How do I unlock Infernolatro?
A: It appears as a standard weapon offer in runs. Select and level it like any base weapon.

Q: Does the kill stack persist between runs?
A: No — kill stacks reset between runs. Within a single run, kills accumulate continuously from zero to the maximum stack. The weapon is designed around within-run snowballing rather than meta-progression.

Q: What direction does the flame zone face?
A: The zone fires in the player's current facing direction, which is determined by the last movement direction. Moving toward dense enemy clusters naturally aligns the zone toward the highest kill opportunity each moment.