Raw Iron Golem drops

This datapack alters the loot table for iron golems so that they drop raw iron instead of iron ingots. Useful to add a small amount of additional complexity to the early game, or for niche map making applications.

Additional features:

Iron golems which die while on fire will produce iron ingots as normal. This way lava-based iron golem farms will function as normal.

Overall iron drop yields should be identical to vanilla.