will allow you to turn into any mob you want. there are two ways to get it. option 1: Download the function pack and in a repeat command block enter this: /function morph . Option two: Get two command blocks and in the first enter the following: /execute @e[​name=morph] ~~~ /effect @p invisibility 1 1 . In the second put: /execute @p ~~~ /tp @e[​name=morph] ~~~ . Either way all you have to do is rename any entity morph and you will turn into them.