Minecraft wiki entry for The_End, associated text: Once defeated, the dragon goes to the exit portal at (0, 64, 0), rises into the sky and disintegrates, with bright beams of light flashing from its body. It then explodes, drops 12,000 (first dragon) or 500 (all subsequent dragons) experience orbs, activates the exit portal, and generates one end gateway portal (first 20 dragons only). This gives the player access to the End's outer islands. Atop the exit portal lies four torches and the dragon egg. After killing the dragon, it can be respawned an unlimited number of times by placing four end crystals on the sides of the exit portal. Respawning the ender dragon regenerates any obsidian pillar blocks previously mined by the player, as well as the torches on the exit portal. However, the dragon egg does not regenerate upon killing a respawned ender dragon.