Large Elemental, neutral
Armor Class 15
Hit Points 142 (15d10+60)
Speed fly +50, walk +0
Challenge 7
Skills perception +0
Damage Resistances nonmagic B/P/S attacks
Damage Immunities fire, poison
Condition Immunities exhaustion, grappled, paralyzed, petrified, poisoned, prone, restrained, unconscious
Senses darkvision 60', passive Perception 10
Languages Auran, Ignan, Terran
Brittle. If it takes cold it partially freezes; its speed is reduced by 10 ft. and its AC is reduced by 2 until end of its next turn.
Choking Air Form. Can enter a hostile creature's space and stop there and it can move through a space as narrow as 1ft. wide with o squeezing. In addition when creature starts turn in same space as soot creature: 7 (2d6) poison and be unable to breathe until it starts its turn outside soot's space (DC 15 Con negates).
Elemental Nature. Doesn't require air food drink or sleep.
False Appearance. While motionless indistinguishable from tangled mass of blackened dusty webbing.
Multiattack. Two Slams or one Slam and one Constrict.
Slam. Melee Weapon Attack: +8 to hit, 5 ft., one target, 14 (2d8+5) bludgeoning damage + 7 (2d6) poison.
Constrict. Melee Weapon Attack: +8 to hit, 5 ft., one target, 14 (2d8+5) bludgeoning damage and target is grappled (escape DC 15). Until this grapple ends target is restrained and soot can't Constrict another target.
Engulfing Sootstorm (Recharge 4-6). Spins violently in place spreading out tendrils of thick poisonous ash. Each creature within 20' of it:21 (6d6) poison and speed is halved (DC 15 Dex half damage and speed isn't reduced). Speed reduction lasts until creature uses action cleaning off the ash.
Source: Tome of Beasts 3 · OGL/Open