Armor Class 14 (natural armor)
Hit Points 138 (12d12 + 60)
Speed 30 ft.
Senses passive Perception 8
Languages Giant
Challenge 6
Poor Depth Perception. The cyclops has disadvantage on any attack roll against a target more than 30 feet away.
Multiattack. The cyclops makes two greatclub attacks.
Greatclub. Melee Weapon Attack: +9 to hit, reach 10 ft., one target. Hit: 19 (3d8 + 6) bludgeoning damage.
Rock. Ranged Weapon Attack: +9 to hit, range 30/120 ft., one target. Hit: 28 (4d10 + 6) bludgeoning damage.
Monster Manual (2014), p. 45