This is a ArmorStand that I've created I was using /entitydata also for the invisible mobs yeah there are actully wither here is the command /summon WitherSkull ~ ~2 ~ {direction:[0.0,0.0,0.0],ExplosionPower:­0,CustomName:"FireMario211",CustomNameVisible:true} that is the command also its only for commandblock /give @p command_block yeah that is kinda thing its only for 1.8 also if you see a secret it has a sign sign says
PlanetMinecraft Is amazing I've posted this map also if u do /gamemode sp and go down 3 times you will see the secret if u like this map give a diamond out