the hider

there should be a hostile minercraft mob called the hider that can make its skin look like stone, any wood planks and bookshelves. they can also just make there whole body one color. it thhrows its dagger (a throwable sword that comes back) at you to harm you. the hider is shaped like the player except has two small horns on the sides of its head. if you kill it it drops a hider horn and when you craft armor or a sword, add a hider horn to the mix and it willl be invisable. i hope one day this makes its way into minecraft!