The Double Iron Golem is an actual mob in minecraft that can only be summoned by building it with blocks or with a command. In this case, with a command. This command does NOT require a command block so you can summon a Double Iron Golem in survival, too. Just make sure cheats are enabled. Double Iron Golems have twice the capabilities of regular ones. They kill hostile mobs such as monsters that attack you or any villager. Once one dies, a second one will take its place as a type of "second life". This cannot be repeated again so be careful not to get your golem killed. Just a reminder, hurting any iron golem, including a double one, will make it kill you. Please be careful! ENJOY!!!