This is an enderman from the farlanders mod, it is much like a normal enderman except that he can pick up any block and when he stares at you, you get nausea. Link to mod ---> www.minecraftforum.net/forums/mapping-and-modding/minecraft-mods/1286213-the-farlanders-v1-2b-bug-fixes

And yes its made with the generator but its still allowed because it is not made up.