AC 12
HP 18 (4d8; bloodied 9)
Speed 5 ft., fly 30 ft.
Proficiency +2; Maneuver DC 12
Damage Resistances bludgeoning, piercing, slashing
Condition Immunities charmed , frightened , grappled , paralyzed , petrified , prone , restrained , stunned , unconscious
Senses blindsight 60 ft., passive Perception 11
Languages —
Echolocation. The swarm can’t use blindsight while deafened .
Keen Hearing. The swarm has advantage on Perception checks that rely on hearing.
Swarm. The swarm can occupy another creature’s space and move through any opening large enough for a Tiny creature. It can’t gain hit points or temporary hit points.
ACTIONS
Bites. Melee Weapon Attack: +4 to hit, reach 0 ft., one target. Hit: 7 (2d6) piercing damage, or 3 (1d6) piercing damage if the swarm is bloodied .
Beasts are natural animals whose existence and abilities are nonmagical. A bear and a tyrannosaurus rex are both beasts.