Mossy Horror

Mossy Horror

Large plant, chaotic evil

Armor Class: 15

Hit Points: 153

Speed: 35 ft

STR

18 +4

DEX

18 +4

CON

16 +3

INT

10 +0

WIS

12 +1

CHA

4 -3

Saving Throws: Str +7 Con +7

Skills: Perception +4, Stealth +7

Damage Vulnerabilities: Fire

Damage Resistances: Necrotic

Condition Immunities: Charmed, frightened, poisoned

Senses: Darkvision 60 ft, passive perception 14

Forest Camoflauge - The Mossy Horror has advantage on Dexterity (stealth) checks made to hide in forest terrain.
Ambusher - In the first round of combat, the mossy horror has advantage on attack rolls against any creature it surprised. 
Surprise Attack - If the Mossy Horror surprises a creature and hits it with an attack during the first round of combat, the target takes an extra 13 (3d8) damage from the attack

Actions

Multiattack - The Mossy Horror makes two clas attacks
Claw - Melee Weapon attack 
+7 to hit, reach 5 ft. one target.  Damage : 3d8+4 Slashing
Horrific Shriek - 1/day - The mossy horror emits a horrifying shriek.  Each creature within 30 ft. of it that can hear it must succeed on a DC 15 Wisdom Saving Throw or be frightened for 1 minute.  A creature can repeat the saving throw at the end of each of it's turns, ending the effect on a success.

"If you and your friends are stupid enough to enter the woods, make sure to stick together. The forest will take those who dare wander off alone..." - Advice from a local hunter
The presence of a mossy horror is evident in a few ways. Travelers may come across the eviscerated, half-eaten remains of a deer or a wolf. Sometimes, one may hear an ear piercing, terrifying screech that echoes throughout the forest. Forests that show signs of a mossy horror are avoided by local hunters and rangers, as traversing it may result in an early demise.

Suggested Environments

Mossy Horrors stalk the forests carefully. Ensuring not to make any noise to alert their prey. When they attack, they tear apart their prey with viscious vigor. It appears that they only consume small amounts of their prey, digesting their meal slowly. Mostly they hunt for the sheer sport of it.