Ash Giant

Indistinguishable. When the Ash Giant is laying down and not moving, it is indistinguishable from a pile of ash.

Insatiable Will. When the Ash Giant dies, it comes back with half (97) its health and has access to its Legendary Actions. This happens only once a day (24 hours).

Multiattack. The Ash Giant makes two swipe attacks.

Swipe. Melee Weapon Attack: +12 to hit, reach 10 ft., one target. Hit: 14 (1d12 + 7) bludgeoning damage plus 10 (2d8) fire damage. 

Soot Breath (Recharge 5–6). The Ash Giant exhales ash in a 60-foot cone. Each creature in that area must make a DC 18 Dexterity saving throw, taking 40 (8d8) fire damage on a failed save, or half as much damage on a successful one.

These legendary actions can only be used after the Ash Giant has died and after 24 hours of any previous Insatiable Will activation. 

The Ash Giant can take 3 legendary actions, choosing from the options below. Only one legendary option can be used at a time and only at the end of another creature’s turn. The Ash Giant regains spent legendary actions at the start of its turn.

Swipe. Melee Weapon Attack: +12 to hit, reach 10 ft., one target. Hit: 14 (1d12 + 7) bludgeoning damage plus 10 (2d8) fire damage. 

Smother. The Ash Giant collapses to spread out. All creatures in a 30 ft. radius need to make a DC 17 Dexterity Saving throw, dealing 60 (15d6) fire damage on a failed save or half as much on a successful save. The Ash Giant then dies.

Detonate. The Ash Giant lurches forward 10 ft. to one creature and explodes. All creatures in a 5 ft. radius of the chosen creature need to make a DC 17 Dexterity Saving throw, dealing 108 (18d10) fire damage on a failed save. The Ash Giant then dies permanently.