The Elder Scrolls: Tamriel

This 60-foot silk rope (3 lbs.) holds up to 3,000 lbs. Speak its command word (action) to animate it. As a bonus action, command it to move 10 ft. per turn toward a destination, fasten/unfasten, knot/unknot, or coil. When knotted, it becomes 50 ft. long and grants advantage on climbing checks. It has AC 20 and 20 HP, regaining 1 HP every 5 minutes if above 0. At 0 HP, it’s destroyed.