Infant Hook Horror

Tiny Monstrosity, Neutral

STR
9 (-1)
DEX
10 (+0)
CON
15 (+2)
INT
6 (-2)
WIS
12 (+1)
CHA
7 (-2)
Echolocation.

The hook horror can't use its blindsight while deafened.

Keen Hearing.

The hook horror has advantage on Wisdom (Perception) checks that rely on hearing.

Find this creature in the encounter builder

Infant Hook Horror

Source: Out of the Abyss, p. 34 - Licenses and attribution