Plant Camouflage. The forest guardian has advantage on dexterity(Stealth) checks it makes in any terrain with ample obscuring plant life.
Multiattack. The forest guardian makes two attacks. Thorned Vine. Melee Weapon Attack: your spell attack modifier to hit, reach 15 ft., one target you can see. Hit: 1d8 + PB piercing damage, and the target must succeed on a DC 14 Strength saving throw or be pulled 10 feet towards the forest guardian. Frightening Aura. As an action, the forest guardian can emanate an aura of fear with a radius of 30 feet centered on itself. All creatures of your choice within the aura must make a wisdom saving throw against your spell save DC. On a failure, the creature is frightened for 1 minute. A frightened creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. This ability cannot be used again until you have completed a long rest.