Minecraft wiki entry for Defeating_an_End_city, associated text: Shulkers can help you get up some end city watchtowers quickly. If you want to get up the top of a end city tower and don't want to pillar jump or use a ender pearl you can go provoke some shulkers so they can give you the levitation effect and you quickly go to the center of the tower, float up, and arrive at your desired destination. Make sure you press "Z" on your keyboard to see how long the levitation effect can last, and before the effect runs out quickly go to an end rod to prevent falling down. Using this way to get up the tower isn't 100% safe, but it can be effective if you don't want to risk pillar jumping in case a shulker hits you or accidently flying the ender pearl to somewhere else.