If you want to build one of these specific designs, let me know (Dungeon, Sky Tower, or Enderman) and if you are playing vanilla or modded Minecraft, so I can provide a detailed materials list. Share public link
To make them one-hit kills, make them drop exactly 22-23 blocks down. minecraft 1.7.10 xp farm
While powerful, this requires high-tier mats. If you want to build one of these
: A standard setup can take a player from level 0 to 30 in roughly 4 hours of AFK time, though larger "5-furnace" arrays can reduce this to 45 minutes. Comparison Table: XP Farm Efficiency Preparation Level Best Feature Skeleton Spawner Early-Mid Game Provides Bones/Arrows + steady XP Zombie Spawner Early Game Easiest to find in caves Enderman Hole Very fast XP once you reach the End Cactus Smelter Works in Peaceful mode; fully automatic Key Build Tips for 1.7.10 : A standard setup can take a player
: Place hoppers and chests at the bottom of the shaft, covered by carpets, to collect Ender Pearls while you safely attack their legs.
Use a Powered Spawner combined with a Killer Joe weapon handler. Fill Killer Joe with a sword, feed him Nutrient Distillation, and watch him farm XP for you. You can collect the liquid XP in an Experience Obelisk . Summary of Farm Efficiencies Game Stage Setup Difficulty Zombie/Skeleton Spawner Early Game Nether Blaze Farm The End Enderman Farm Extremely Fast Modded Automations Depends on Tech Infinite/Passive
: Stand at the bottom and swing a sword to instantly sweep through dozens of Endermen, pulling in massive amounts of XP and Ender Pearls. 3. Late-Game: The Zombie Pigman Nether Gold & XP Farm