Minecraft Copper Golem

Minecraft copper golem: how to build it and sort chests

The copper golem is a passive mob you build yourself and that sorts items. To make one, place a block of copper at any oxidation stage and put a carved pumpkin or jack o'lantern on top as the last block. It also works sideways or upside down. When it appears, the copper block turns into a copper chest and the golem stands where the pumpkin was.

Its job is moving things from copper chests to regular ones. If it is empty-handed, it opens the nearest copper chest and takes up to 16 of the first item it finds. Then it looks for a wooden or trapped chest that is empty or already holds that item and drops it there. It spends 3 seconds checking each chest, remembers the last 9 it visited and searches a 65×17×65 area, so it makes a simple sorting system.

Copper oxidizes, and so does the golem. It goes through four stages and, shortly after fully oxidizing, turns into a copper golem statue and drops whatever it was holding. To prevent that, wax it with honeycomb. If it is already a statue, an axe scrapes it clean and, once unoxidized, brings it back to life.

It is completely passive, opens non-iron doors, takes no fall damage and in water it sinks and walks along the bottom without drowning. Unlike almost every passive mob, it keeps working even when you are more than 32 blocks away. If an iron golem gives it a poppy, you can shear it to keep the flower.

Sources: minecraft.wiki/Copper Golem