Similer to the clown Ointment but at the same time different, the Mer Ointment transforms the user into a Merperson, the change happenss as soon as the user comes into contact with salt water. They gain all the Knowledge of a Merperson, the Ability to use Mer and water Magic, immunity from the poisons of the Ocean, manmade and natural. Protection from the Predators of the deep as well. They no longer require sleep as they are beings of magic. They also become immortal and ageless. Other abilities depend on how the user or users make their lists. Now who buys it?