Minecraft wiki entry for End_survival, associated text: Once the outpost is set up, the player may teleport to this house through the gateway when their health is critical during the process of killing the respawned ender dragon. If it is not a priority, it can consist of no more than a farm and hole-in-the-ground shelter. However, if the player plans to beat all 19 remaining dragons, the base can be extended into a fully self-sustaining presence, even providing iron for weapons and armor. Through great difficulty, Villagers may be transported to the outer island base (either by flying machine or pushing baby villagers through the gateway) and traded with for arrows, bows, and enchanted gear. Through a variety of creative loopholes, the outer island base may be expanded into a fortress so self-reliant that the player never has to leave.