Sources
CR
Type
Size
Alignment
Movement

Decapus

Large Monstrosity, Unaligned

Armor Class 14 (natural armor)
Hit Points 75 (10d10 + 20)
Speed 15 ft., climb 30 ft.
STR
15
+2
DEX
14
+2
CON
14
+2
INT
4
-3
WIS
10
+0
CHA
7
-2
Skills Athletics +4, Perception +2, Stealth +4
Senses darkvision 60 ft., passive Perception 12
Languages
Challenge 4 (1,100 XP)

Actions

Multiattack. The decapus makes two attacks: one with its bite and one with its tentacles.

Bite. Melee Weapon Attack: +4 to hit, reach 5 ft., one creature grappled by the decapus. Hit:7 (2d4 + 2) piercing damage.

Tentacles. Melee Weapon Attack: +4 to hit, reach 10 ft., one target. Hit:24 (9d4 + 2) bludgeoning damage or 14 (5d4 + 2) bludgeoning damage if the decapus is grappling a creature other than the target or if the decapus is on the ground or floor. The target is also grappled (escape DC 14) unless the decapus is already grappling a creature. Until this grapple ends, the target is restrained.

Lore

Decapuses are carnivorous, solitary hunters that swing through trees, scooping up prey with their 10-foot-long, suckered tentacles. Decapuses also use their tentacles to climb walls and ceilings.