Minecraft wiki entry for Defeating_an_End_city, associated text: A water bucket is extremely useful to have in the End, because it can save your life in several ways. For example, it can save you from long falls, if you accidently fall then you can dump the water below you before you hit the ground so you don't take any fall damage, and being in water also neutralizes Levitation. If you are in a city on a bridge, place down your water so that it falls to the ground. If you fall off the bridge, you can jump into the waterfall to survive. Water can even help you deal with provoked endermen. If an enderman gets mad at you, dump the water at your feet, and the enderman will get hurt and teleport away.