Mock

The mock adheres to anything that touches it. The mock has Advantage on attack rolls against any creature adhered to it. The target or a creature within 5 feet of it can detach the mock as an action.

Melee Attack Roll: +3, reach 5 ft. Hit: 3 (1d4 + 1) Piercing damage plus 2 (1d4) Acid damage.

The mock shape-shifts to resemble a Tiny object while retaining its game statistics, or it returns to its true blob form. Any equipment it is wearing or carrying isn't transformed.