The Voldack

The Voldack is a rare creature that has the ability to pull you to itself and give you mild damage, but when you damage it to a certain degree, it will pull you to itself again, but instead of damaging you, it teleports you to one of three locations, the Nether, the End or deep within the caves! However, the End would have to be made livable in order for this creature to fit in perfectly. So perhaps include him in an End update?