Sin, Gluttony

Large fiend (demon), chaotic evil

Armor Class

17 (natural armor)

Hit Points

350 (28d10 + 196)

Speed

20 ft., climb 20 ft.

Saves

Con +14, Wis +11

Skills

Perception +11

Damage Resistances

cold, fire, lightning; bludgeoning, piercing, and slashing from nonmagical weapons

Damage Immunities

poison

Condition Immunities

blinded, charmed, deafened, exhaustion, frightened, poisoned, prone

Senses

blindsight 60 ft. (blind beyond this radius)

Languages

understands Abyssal but can't speak

Challenge

23

Amorphous

Gluttony can move through a space as narrow as 1 inch wide without squeezing.

Legendary Resistance (3/Day)

If Gluttony fails a saving throw, it can choose to succeed instead.

Magical Resistance

Gluttony has advantage on saving throws against spells and other magical effects.

Magical Weapons

Gluttony's weapon attacks are magical.

Actions

Multiattack

Gluttony makes two bite attacks or one spit attack.

Bite

Melee Weapon Attack: +13 to hit, reach 10 ft., one target. Hit: 37 (7d8 + 6) piercing damage.

Spit Slime

Ranged Weapon Attack: +13 to hit, range 30/80 ft., one target. Hit: 15 (2d8 + 6) bludgeoning damage plus 36 (8d8) acid damage.

Create Cubes (1/Day)

If there is space to do so, the demon can create 1d4 gelatinous cubes out of its body. The new oozes will obey the demon's commands and are destroyed if it dies.

Create Cubes (1/Day)

Engulf. The demon moves up to its speed. While doing so, it can enter Large or smaller creatures' spaces. Whenever the cube enters a creature's space, the creature must make a DC 17 Dexterity saving throw. On a successful save, the creature can choose to be pushed 10 feet back or the side of the demon. A creature that chooses not to be pushed suffers the consequences of a failed saving throw. On a failed save, the demon enters the creature's space, and the creature takes 21 (6d6) acid damage and is engulfed. The engulfed creature can't breathe, is restrained, and takes 35 (10d6) acid damage at the start of each of the demon's turns. When the demon moves, the engulfed creature moves with it. An engulfed creature can try to escape by taking an action to make a DC 17 Strength check. On a success, the creature escapes and enters a space of its choice within 5 feet of the demon.

Legendary actions

Slide

The demon can move up to its speed towards an opponent.

Bite Attack (Costs 3 Actions)

Gluttony makes a bite attack.

Spits Slime (Costs 2 Actions)

Gluttony makes a slime attack.