This is the Nethermancer. He was once a simple enderman, minding his own business, when he found a nether portal and went to the nether, he then wandered, for ages, slowly gaining demonic Nether energy, eventually he transformed into the Nethermancer.. He will proceed to kill you, bring you back to life to comment/favourite him and diamond, then proceed to stab you with a spoon, kill you, and make you a part of his undead army. Feel free to say your opinions about it.