Huge undead, neutral evil

Armor Class: 17 (Natural Armor)

Hit Points: 149 (13d12 + 65)

Speed: 40 ft

STR

22 +6

DEX

10 +0

CON

20 +5

INT

6 -2

WIS

10 +0

CHA

8 -1

Damage Resistances: Piercing, Slashing, Necrotic

Damage Immunities: Poison

Condition Immunities: Exhaustion, Poisoned

Senses: Darkvision 120", Passive Perception 10

Languages: Understands Common, but can't speak

Challenge Rating: 10 ( 5900 XP)

Proficiency Bonus: +4

Gashadokuro by Matthew Meyer

Actions

Multiattack. The gashadokuro attacks three times, twice with its claws, and once with its bite.

Claw. Melee Weapon Attack: +10 to hit, reach 10 ft., one target. Hit: 16 (3d6 + 6) slashing damage. The target is grappled (escape DC 16). The gashadokuro has two claws, each of which can only grapple on target.

Bite. Melee Weapon Attack: +10 to hit, reach 5 ft., one target. Hit: 19 (2d12 + 6) piercing damage. The gashadokuro has advantage on the attack roll if the target is grappled. If this damage reduces the target to 0 hit points, the gashadokuro kills the target by biting off its head and regains hit points equal to half of the damage dealt.

Envelop In Darkness. The gashadokuro creates a wall of black energy in a space it can see within 120 ft. The wall appears as a hemispherical dome with a radius of up to 80 feet. If the wall cuts through a creature’s space when it appears, the creature is pushed to one side of the wall chosen by the gashadokuro. The wall is one foot thick, and lasts for 10 minutes, or until the gashadokuro is killed. It is impossible to see through the wall, and any creature that ends its turn within 5 feet of the wall takes 7 (2d6) necrotic damage. A creature who attempts to pass through the wall takes 21 (6d6) necrotic damage, or half as much on a successful DC 18 Constitution check, remaining in the space nearest the point they tried to exit on a failure.