Huge plant, unaligned

Armor Class: 16 (Natural Armor)

Hit Points: 105 (10d12 + 40) 10d12+40

Speed: 10 ft

STR

29 +9

DEX

10 +0

CON

18 +4

INT

3 -4

WIS

11 +0

CHA

6 -2

Saving Throws: Constitution +8

Damage Resistances: Poison, Psychic

Condition Immunities: Charmed, Frightened, Paralysis, Poisoned, Sleep, Stunned

Senses:

60' Tremorsense, Passive Perception 10

Languages: -

Challenge Rating: 10 ( 5900 XP)

Proficiency Bonus: +4

Actions

Multiattack. The greenvise makes two slam attacks and one bite.

Slam. Melee Weapon Attack: +13 to hit, reach 10', one target. Hit: 14 (2d4 + 9) 2d4+9 bludgeoning attack. The targeted creature must succeed on a DC 17 grapple check or be grappled. The greenvise can only have up to two creatures grappled at a time.

Bite. Melee Weapon Attack: +13 to hit, reach 10', one target. Hit: 7 (1d6 + 4) 1d6+4 piercing attack.

Death Fog (2/Day). The greenvise produces a thick, acidic vapor in a cylinder 40' high with a 60' radius. All creatures that start their turn within the death fog are blinded, have their movement speed halved (rounded down), & take 7 (2d3) 2d6 acid damage. The death fog has a duration of 1 minute but can be dispersed by strong winds in a round. The greenvise is immune to the effects of the death fog.

Bonus Actions

Swallow Whole. If the greenvise begins its turn with a Large or smaller creature grappled & successfully hits it with a bite attack, then the greenvise can swallow the targeted creature. Once swallowed, the targeted creature takes 14 (4d6) 4d6 acid damage. The swallowed creature takes the damage again at the start of the greenvise's next turn. The greenvise's stomach can have one Large creature or up to four Medium or smaller creatures in it at any time.

On its turn, a swallowed creature can use its action to attempt to a Strength saving throw (DC 19). On a success, the creature crawls out of the greenvise's stomach & mouth, landing prone on an unoccupied space within 5' of the greenvise.

Alternatively, a swallowed creature can make a melee weapon attack from inside the greenvise's stomach (AC 18). If a creature manages to deal a total of 20 HP worth of piercing or slashing damage, it creates hole large enough for a creature to crawl through, landing prone on an unoccupied space within 5' of the greenvise. At the end of the creature's turn, the hole is quickly covered with scar tissue to prevent any other creatures from escaping.

Suggested Environments

Temperate or warm climates; hill, plain, or swamp terrain