Homunculus

Tiny Construct, Neutral

AC: 13

Initiative: +2 (12)

HP: 5 (2d4)

Speed: 20 ft., fly 40 ft.

STR
4 (-3)
DEX
15 (+2)
CON
11 (+0)
INT
10 (+0)
WIS
10 (+0)
CHA
7 (-2)

Immunities: poison

Condition Immunities: charmed; poisoned

Senses: darkvision 60 ft., Passive Perception 10

Languages: understands the languages of its creator but can't speak

CR: 0 (XP 10; PB +2)

Telepathic Bond.

While the homunculus is on the same plane of existence as its master, it can magically convey what it senses to its master, and the two can communicate telepathically.

Actions

Bite.

Melee Weapon Attack: +4 to hit, reach 5 ft., one creature. Hit: 1 piercing damage, and the target must succeed on a DC 10 Constitution saving throw or be poisoned for 1 minute. If the saving throw fails by 5 or more, the target is instead poisoned for 5 (1d10) minutes and unconscious while poisoned in this way.

Find this creature in the encounter builder

Homunculus

Source: Monster Manual (2014), p. 188 - Licenses and attribution