Damage Transfer. While the rug is grappling a creature, it takes only half the damage dealt to it (rounded down), and the creature it holds takes the other half.
Actions
Smother. Hit: 10 (2d6 + 3) Bludgeoning damage. A Medium or smaller target is Grappled (escape DC 13); until it gets free it is also Blinded and Restrained, can't breathe, and takes 10 (2d6 + 3) Bludgeoning damage at the start of each of its turns. The rug can hold only one creature at a time.