Huge Fiend, chaotic evil
Armor Class 17 (natural armor)
Hit Points 262 (21d12+126)
Speed swim +40, walk +40
Challenge 18
Saving Throws cha +1, con +1, str +1, wis +9
Skills perception +3
Damage Resistances lightning; nonmagic B/P/S attacks
Damage Immunities cold, fire, poison
Condition Immunities poisoned
Senses truesight 120', passive Perception 13
Languages understand Abyssal but can't speak
Magic Resistance. Advantage: spell/magic effect saves.
Standing Leap. Its long jump is up to 30' and its high jump is up to 15 ft. with or with o a running start.
Sunlight Hypersensitivity. Takes 20 radiant when it starts its turn in sunlight. If in sunlight: disadvantage on attacks/ability checks.
Multiattack. One Bite and two Gores or three Spit Fires.
Bite. Melee Weapon Attack: +16 to hit, 5 ft., one target, 19 (2d8+10) bludgeoning damage + 9 (2d8) fire and target is grappled (escape DC 18). Until the grapple ends the target is restrained kogukhpak can automatically hit target with its Bite and kogukhpak can't make Bite attacks vs. other targets.
Gore. Melee Weapon Attack: +16 to hit, 10 ft., one target, 37 (5d10+10) piercing damage.
Spit Fire. Ranged Spell Attack: +11 to hit, 120 ft., one target, 32 (6d8+5) fire.
Devastating Leap (Recharge 6). Leaps up to 30' and lands on its feet in a space it can see. Each creature in the space or within 5 ft. of it when it lands: 72 (16d8) bludgeoning damage and knocked prone (DC 20 Str half damage not prone and if in kogukhpak's space can choose to be pushed 5 ft. back or to side of kogukhpak). Creature in kogukhpak's space that chooses not to be pushed suffers consequences of failed save.
Fire Breath (Recharge 6). Exhales fire in a 90' cone. Each creature in that area: 70 (20d6) fire (DC 20 Dex half).
Source: Tome of Beasts 3 · OGL/Open