Medium swarm of Tiny beasts, unaligned

Armor Class 14

Hit Points 36 (8d8)

Speed 30 ft., swim 30 ft.

STR DEX CON INT WIS CHA
8 (−1) 18 (+4) 11 (+0) 1 (−5) 10 (+0) 3 (−4)

Damage Resistances bludgeoning, piercing, slashing

Condition Immunities charmed, frightened, grappled, paralyzed, petrified, prone, restrained, stunned

Senses blindsight 10 ft., passive Perception 10

Languages —

Challenge 2 (450 XP)

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 snake. The swarm can’t regain hit points or gain temporary hit points.

Actions

Bites. Melee Weapon Attack: +6 to hit, reach 0 ft., one creature in the swarm’s space. Hit: 7 (2d6) piercing damage, or 3 (1d6) piercing damage if the swarm has half of its hit points or fewer. The target must make a DC 10 Constitution saving throw, taking 14 (4d6) poison damage on a failed save, or half as much damage on a successful one.