Minecraft wiki entry for Zombified_piglin_farming, associated text: When we place a trident killer at the bottom of the drop chute, we instantly have a farm that kills the zombified piglins automatically. The trident killer consists of a kill chamber with pistons and a trident in the middle. The pistons push the zombified piglins around and against the trident. This way they get damaged each time they hit the trident, until they die. This then gives us XP, rotten flesh, gold nuggets, gold ingots and golden swords. If we hold a looting sword when in the area of the farm, the looting will be transferred onto the trident and we get more loot with each kill.