Minecraft wiki entry for Enderman_farming, associated text: The endermite lure trap is one of the cheapest and most efficient enderman farms, requiring only blocks, a name tag, and a minecart (A boat is inefficient as it can block enderman from getting in) while relying on enderman aggression toward enderpearl-spawned endermites. By naming the endermite and trapping it in a minecart, a permanent lure is created, and all enderman that spawn within 62 blocks and sight of the endermite pathfind to the endermite and attack it. The enderman can then be routed to a collection point where they can be farmed. If desired, the enderman can be dropped 43 blocks to take sufficient fall damage to render them one hit. To increase spawn rates, the farm is usually built at least 128 blocks away from the main end island or any other areas where enderman can spawn. Alternatively, you can prevent spawning on the main island by lighting above light level 7, or covering the main island with slabs or water.