Swarm of Beetles
Medium Beast (Swarm), unaligned
100 XP
Special Abilities
Swarm
The swarm can occupy another creature's space and vice versa, and the swarm can move through any opening large enough for a Tiny insect. The swarm can't regain hit points or gain temporary hit points.
Actions
Bites
Melee Weapon Attack: +3 to hit, reach 0 ft., one target in the swarm's space. Hit: 10 (4d4) piercing damage, or 5 (2d4) piercing damage if the swarm has half of its hit points or fewer.
Quick Reference
Running This Encounter
A swarm of beetles attacks as a single entity, moving across terrain and around obstacles as a mass. They deal piercing damage through bites and can occupy difficult spaces. Use the swarm's ability to move through small openings to create tactical complexity. Consider the swarm splitting into smaller groups if separated by terrain or magic.
Combat Tactics
The swarm prioritizes the nearest target and surrounds it, gaining advantage from pack tactics. They are relentless and will pursue prey, using their mobility to avoid concentrated fire. The swarm avoids bright light and open areas, preferring to attack from darkness or undergrowth.
Environment & Setting
Dense forests, caverns, underground tunnels, or decaying buildings with crevices and shadows. Swarms thrive in dark, damp environments where they can hide and emerge unpredictably.