5thSRD

Swarm of Insects

Medium swarm of Tiny beasts, unaligned

Armor Class 12 (natural armor)
Hit Points 22 (5d8)
Speed 20 ft., climb 20 ft.

STR DEX CON INT WIS CHA
3 (−4) 13 (+1) 10 (+0) 1 (−5) 7 (−2) 1 (−5)

Damage Resistances bludgeoning, piercing, slashing
Condition Immunities charmed, frightened, grappled, paralyzed, petrified, prone, restrained, stunned
Senses blindsight 10 ft., passive Perception 8
Languages --
Challenge 1/2 (100 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 insect. The swarm can't regain hit points or gain temporary hit points.

Actions

Bite. 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.