Medium Swarm of Tiny Beasts, Unaligned
AC14
Initiative+4 (14)
HP36 (8d8)
SpeedText 30 ft., Swim 30 ft., Modes [object Object]
STR8
MOD-1
SAVE-1
DEX18
MOD+4
SAVE+4
CON11
MOD+0
SAVE+0
INT1
MOD-5
SAVE-5
WIS10
MOD+0
SAVE+0
CHA3
MOD-4
SAVE-4
Damage ResistancesBludgeoning; Piercing; Slashing
Condition ImmunitiesCharmed; Frightened; Grappled; Paralyzed; Petrified; Prone; Restrained; Stunned
SensesText Blindsight 10 ft.; Passive Perception 10; Entries Blindsight 10 ft.; Passive Perception 10
LanguagesNone
CRCR 2 (XP 450; PB +2)
Traits
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 Attack Roll: +6, reach 5 ft. Hit: 8 (1d8 + 4) Piercing damage—or 6 (1d4 + 4) Piercing damage if the swarm is Bloodied—plus 10 (3d6) Poison damage.
Found on p.371 of MM2025 (Free Rules)