Minecraft wiki entry for Tricks_and_Traps, associated text: This trap is used for pushing the hunters into the void or the trap. If you get close to the pufferfish (one block radius) you will be poisoned and will be knocked back one block. First, find a suitable spot, or build one. It should be two blocks wide and there should be a wall covering the water block the pufferfish is in. Next, lure the hunters to the trap. MAKE SURE you place the pufferfish at the spot after you past it. The hunters will get knocked off the island and into the void/ your lava