Tag Name [me]

If the player set their own name on nametag. That named player only can use it on a entity not only to name it but give it random behaviors, hinding the name, randomly teleporting if given ender pearl, and giving it the ability to go invisible on it's own accord if given invisibility potion. But the catch is it will never roam to far away from the player with its name, always remaining in nearby chunks if it tends to wander. The name can show again with a empty nametag. It basically symbolizes the player as a random anomaly.