Ash Wraith

Incorporeal Movement. The Ash Wraith can move through creatures and objects as though they were difficult terrain. It takes 5 (1d10) Force damage if it ends its turn inside an object.

Born of the Wildfire. The Ash Wraith ignores difficult terrain created by burning debris, smoke, ash, or magical fire. Whenever it enters a space containing nonmagical fire, it gains 5 temporary hit points, which last until the start of its next turn.

Smoldering Aura. The air around the Ash Wraith shimmers with heat. A creature that starts its turn within 5 feet of the Ash Wraith it takes 2 (1d4) Fire damage.

Multiattack. Ash Wraith makes 2 Claw Attacks

Claw Attack. Melee Attack Roll: +5, reach 5 ft. Hit: 8 (1d8 + 4) Fire damage. The target must succeed on a DC 13 Constitution saving throw or become Scorched.

Scorched. A Scorched creature has burning ash clinging to its body. At the start of each of its turns it takes 3 (1d6) Fire Damage. The creature or an adjacent ally may use an action to extinguish the embers. The effect also ends if the creature receives magical healing or is immersed in water.

Smoke Burst (Recharge 5-6). The Ash Wraith explodes into a cloud of burning ash. Each creature within 15 feet must make a DC 13 Dexterity saving throw. Failure: 10 (3d6) Fire Damage and Blinded condition until the end of its next turn. Success: Half damage and not blinded. The area remains lightly obscured by smoke until the end of the Ash Wraith's next turn.

Smoke Step. The Ash Wraith teleports up to 20 feet to an unoccupied space it can see that is within smoke, ash, or nonmagical fire.

Death Burst. When the Ash Wraith is destroyed, it collapses into burning ash. Creatures within 10 feet must succeed on a DC 13 Dexterity saving throw or take 7 (2d6) fire damage.

The area becomes lightly obscured by drifting ash until the end of the next round.