Jade Monolith

A statue of jade, carved in the image of some unrecognizable, but humanoid, race. The statue feels very cool to the touch, and the jade is polished to perfect smoothness. This item has 4 charges. As an action, you may choose a creature within 120 feet and expend a charge. The next time the creature would take damage, you take the damage instead, and the creature goes unharmed. If the creature takes no damage before the end of their next long rest, this effect fades. This item regains all expended charges daily at dawn. When you expend the last charge in this item, roll 1d20. On a roll of 1 or 2, the item does not regain any charges for the next 7 days. If several of these items are used on the same creature, the prevented damage is split evenly between all creatures using a jade monolith.