Multiattack

The giant makes two greatclub attacks.

Greatclub

Melee Weapon Attack: +9 to hit, reach 15 ft., one target. Hit: 19 (3d8 + 6) bludgeoning damage.

Rock

Ranged Weapon Attack: +9 to hit, range 60/240 ft., one target. Hit: 28 (4d10 + 6) bludgeoning damage. If the target is a creature, it must succeed on a DC 17 Strength saving throw or be knocked prone.

Saving Throw: DEX

Saving Throw: CON

Saving Throw: WIS

Skill: Athletics

Skill: Perception

Rock Catching

If a rock or similar object is hurled at the giant, the giant can, with a successful DC 10 Dexterity saving throw, catch the missile and take no bludgeoning damage from it.

Stone Camouflage

The giant has advantage on Dexterity (Stealth) checks made to hide in rocky terrain.