setTitle("What the Heck?!") setIcon() setTranslatedDescription("advancement.sf4.age_power.hellishmatter.description") addParent("sf4:age_power/root") //Criteria criteria = addCriteria("Obtain Hellish Matter", "minecraft:inventory_changed") criteria.addItem() setRewardExperience(10) hideLines() alwaysVisible() setPos(-156,121)