Dual Shields.

The giant carries two shields, which together give the giant +3 to its AC (accounted for above).

Actions

Multiattack.

The giant makes two Fireshield or Rock attacks.

Fireshield.

Melee Weapon Attack: +13 to hit, reach 5 ft., one target. Hit: 22 (4d6 + 8) bludgeoning damage plus 7 (2d6) fire damage plus 7 (2d6) piercing damage.

Rock.

Ranged Weapon Attack: +13 to hit, range 60/240 ft., one target. Hit: 30 (4d10 + 8) bludgeoning damage.

Shield Charge (Recharge 5–6).

The giant moves up to 30 feet in a straight line and can move through the space of any creature smaller than Huge. The first time it enters a creature's space during this move, that creature must succeed on a DC 21 Strength saving throw or take 36 (8d6 + 8) bludgeoning damage plus 14 (4d6) fire damage and be pushed up to 30 feet and knocked prone.

Environment: Mountain, Underdark

Fire Giant Dreadnought