Swarm of Esteron

Medium Beast (Swarm), unaligned

Armor Class 13

Hit Points 54 (12d8)

Speed fly +30, swim +30, walk +10

Challenge 2

STR
10
+0
DEX
16
+3
CON
10
+0
INT
2
-4
WIS
12
+1
CHA
4
-3

Damage Resistances bludgeoning, piercing, slashing

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

Senses darkvision 60 ft., passive Perception 11

Languages —

Special Abilities

Amphibious. The swarm can breathe air and water.

Keen Smell. The swarm has advantage on Wisdom (Perception) checks that rely on smell.

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 esteron. The swarm can't regain hit points or gain temporary hit points.

Actions

Bites. Melee Weapon Attack: +5 to hit, reach 0 ft., one creature in the swarm's space. Hit: 14 (4d6) piercing damage, or 7 (2d6) piercing damage if the swarm has half its hp or fewer.

Source: Tome of Beasts 2 · OGL/Open