Armor Class 16 (natural armor)
Hit Points 84 (8d10 + 40)
Speed 40 ft.
Saving Throws DEX +4, CON +8, WIS +5
Skills Perception +5
Damage Immunities fire, poison
Condition Immunities exhaustion, poisoned
Senses passive Perception 15
Languages Giant, Ignan
Challenge 7
Death Burst. When the cinder hulk dies, it leaves behind a cloud of cinders and smoke that fills a 10-foot-radius sphere centered on its space. The sphere is heavily obscured. Any creature that moves into the area for the first time on a turn or starts its turn there must succeed on a DC 16 Constitution saving throw or take 10 (3d6) fire damage. The cloud lasts for 1 minute or until it is dispersed by strong wind.
Multiattack. The cinder hulk makes two Slam attacks.
Slam. Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit: 16 (2d10 + 5) bludgeoning damage plus 10 (3d6) fire damage.
Wave of Cinders (Recharge 5–6). The cinder hulk emits a wave of smoldering ash from its face, hands, or chest in a 30-foot cone. Each creature in that area must make a DC 16 Dexterity saving throw. On a failed save, a creature takes 31 (7d8) fire damage and has the blinded condition until the end of its next turn. On a successful save, a creature takes half as much damage only.
Bigby Presents: Glory of the Giants, p. 123