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
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.