Sources
CR
Type
Size
Alignment
Movement

Cog

Huge Giant, Chaotic Evil

Armor Class 15 (scale mail)
Hit Points 105 (10d12 + 40)
Speed 40 ft.
STR
21
+5
DEX
8
-1
CON
19
+4
INT
5
-3
WIS
9
-1
CHA
6
-2
Skills Perception +2
Senses passive Perception 12
Languages Giant
Challenge 5 (1,800 XP)

Actions

Multiattack. The giant makes two greatclub attacks.

Greatclub. Melee Weapon Attack: +8 to hit, reach 10 ft., one target. Hit:18 (3d8 + 5) bludgeoning damage.

Rock. Ranged Weapon Attack: +8 to hit, range 60/240 ft., one target. Hit:21 (3d10 + 5) bludgeoning damage.