Multiattack

The giant makes two greatsword attacks.

Greatsword

Melee Weapon Attack: +11 to hit, reach 10 ft., one target. Hit: 28 (6d6 + 7) slashing damage. If the target is a Large or smaller creature it makes a DC 19 Strength saving throw. On a failure it is pushed up to 10 feet away from the giant and knocked prone.

Rock

Ranged Weapon Attack: +11 to hit, range 60/240 ft., one target. Hit: 42 (10d6 + 7) bludgeoning damage. If the target is a Large or smaller creature it makes a DC 19 Strength saving throw falling prone on a failure.

Sword Sweep (1/Day, While Bloodied)

The giant makes a greatsword attack against each creature within 10 feet.

Ignite Blades (1/Day)

The greatswords of each fire giant of the giants choice within 30 feet magically kindle into flame. For the next minute each of their greatsword attacks deal an extra 7 (2d6) fire damage.

Pillar of Flame (1/Day)

Each creature within a 10-foot-radius 40-foot-high cylinder centered on a point within 60 feet that the fire giant can see makes a DC 18 Dexterity saving throw taking 56 (16d6) fire damage on a failed save or half damage on a success. Unattended flammable objects are ignited.