Before u want to kill the ENDERDRAGON, u wanna pull out some ender eyes, some snowballs, a bow, a bed, and a diamond sword. Throw the ender eyes out and follow their direction. It is reccomended that you fly to follow them, or otherwise it will take longer. If the ender eyes go underground, go where they went and go underground straight down. When you see a rare block, which you probably will, right click on it with an ender eye. When the lava turns black, step in it with caution, there's no turning back. When you are there you will see the ENDERDRAGON and some obsidian towers. Fly up to those towers and take oyt the crystals out. When those are out, take out the ENDERDRAGON with your weapons and snowballs. The ENDERDRAGON is allergic to snow, making it a very good machine-gun. When he's beat, only go in the portal that appears if you want to go through a 10 minute lecture about imagination. So, that's all you need to know!