Wanderer's Wheel Shield
Availability: Rare shield, 100 gp
The wagons of the wanderers are sturdily made, but the wheels offer a potential weak spot. The clever smiths and tinkerers have created removable shields that can be used to protect both wagon and warrior.
When four shields are affixed to a wagon, they increase the vehicle's durability (AC 15, 45 hp) and provide it with a damage threshold of 10. The wagon may only move one third its normal rate while the shields are in place.
You can remove a shield as an action and use it in combat, gaining an additional +1 to AC on top of the shield's normal bonus. Because it is heavy and awkward, you have disadvantage on Dexterity checks while wielding the shield if your Strength is less than 16.