Displacer Beast

Large monstrosity, lawful evil
Armor Class 13 (natural armor)
Hit Points 85 (10d10 + 30)
Speed 40 ft.
STR
18 (+4)
DEX
15 (+2)
CON
16 (+3)
INT
6 (-2)
WIS
12 (+1)
CHA
8 (-1)
Senses darkvision 60 ft., passive Perception 11
Languages
Challenge 3 (700 XP)
Avoidance.
Displacement.
ACTIONS
Multiattack.
Tentacle.

This full creature's stat block is not available (not OGL).

This monstrous predator takes its name from its ability to mask itself with illusion, displacing light so that it appears to be somewhere it is not.
Monster Manual
Displacer Beast