Glowworm Swarm

Type: Bioluminescent cave-dweller
Size: Individual: 10-20 cm; swarm: thousands
Behavior: Filter-feeds on airborne spores. Harmless individually, overwhelming in swarms. Light pulses disorient predators.
Abilities:
Bioluminescence (controllable intensity)
Synchronized light pulses (hypnotic)
Numbers (crush threats by mass)
Vulnerabilities:
Smoke (disperses swarm)
Sound (disrupts coordination)
Cold (induces hibernation)
Encounter Notes: Beautiful but dangerous in large numbers. Deepkin harvest them for lighting. Swarms indicate nearby food sources (fungal blooms).