Minecraft has a new and terrifying creature called Wither King (or Boss) that is yet to hit the game but will do you much damage when it does. It's not called "Wither" because you wonder where it is either (that would be 'whither' anyway... watch the video and quake.
PCGamesN points out that, the boss, "floats around chucking festering, withering, exploding skulls at you," and that, it " is a sort of three-headed, charred skeleton, whose outer heads can launch projectiles at targets... Coming to a Minecraft update near you soon."