Animated Rug of Smothering

. . If the target is a Medium or smaller creature, the monster can give it the Grappled condition (escape DC ) instead of dealing damage. Until the grapple ends, the target has the Blinded and Restrained conditions, is Suffocating{suffocating}, and takes damage at the start of each of its turns. monster rug can smother only one creature at a time.
While grappling the target, the monster can't take this action, the monster halves the damage it takes (round down), and the target takes the same amount of damage.