False Appearance. While the blight remains motionless, it is indistinguishable from a tangle of vines.

Body of madness

When a melee attack hits the blight,the attacker takes 1d8 psychic damage.

Constrict. Melee Weapon Attack: +4 to hit, reach 10 ft., one target. Hit: 9 (2d6 + 2) bludgeoning damage, and a Large or smaller target is  grappled (escape DC 12). Until this grapple ends, the target is restrained, and the blight can't constrict another target.

Drunken deflection 

As a reaction to being attacked,the blight can give the attack disadvantage.If this causes the attack to miss,the attacker is poisoned until, the start of your next turn.