Chest Mimic

Sticky Tongue. A Huge or smaller creature adhered to the mimic is grappled by it when it manages to perform a successful bite attack. (escape DC 13). Ability checks made to escape this grapple have disadvantage.

Grappler. The mimic has advantage on attack rolls against any creature grappled by it.

Bite. Melee Weapon Attack: +4 to hit, reach 5 ft.., one target. Hit: 7 (1d8 +3) + 1d4 acid damage