setIcon(<minecraft:skull, meta:3, nbt:{SkullOwner:{Id:"8bdb71d0-4724-48b2-9344-e79480424798",Properties:{textures:[{Value:"eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvY2Q1NDE1NDFkYWFmZjUwODk2Y2QyNThiZGJkZDRjZjgwYzNiYTgxNjczNTcyNjA3OGJmZTM5MzkyN2U1N2YxIn19fQ"}]}}}>)
setTitle("heads, Heads HEADS!")
setDescription("Almost every mob now has a small chance to drop his head ... looting helps. Plus, in structures' chests there are even more heads. Collect 'em all!")

addParent("triumph:vanilla/adventure/kill_a_mob")

criteria = addCriteria("brokeLog", "minecraft:inventory_changed")
criteria.addItem(<minecraft:skull:3>)