Demodog

Small Fiend (Demon), Chaotic Evil

AC: 14

Initiative: +2 (12)

HP: 27 (6d6 + 6)

Speed: 50 ft.

STR
16 (+3)
DEX
15 (+2)
CON
12 (+1)
INT
6 (-2)
WIS
12 (+1)
CHA
6 (-2)

Skills: Stealth +4

Resistances: cold; lightning

Immunities: poison

Condition Immunities: poisoned

Senses: Blindsight 60 ft., Passive Perception 11

CR: 1 (XP 200; PB +2)

Pack Tactics.

The demodog has Advantage on an attack roll against a creature if at least one of the demodog's allies is within 5 feet of the creature and the ally doesn't have the Incapacitated condition.

Actions

Bite.

Melee Attack Roll: +5, reach 5 ft. Hit: 8 (1d10 + 3) Piercing damage. If the target is a Medium or smaller creature, it has the Prone condition.

Find this creature in the encounter builder

Demodog

Source: Stranger Things: Welcome to the Hellfire Club - Licenses and attribution