{
  "display": {
    "icon"       : { "item"     : "twilightforest:lamp_of_cinders"           },
    "title"      : { "translate": "advancement.twilightforest.progress_troll"      },
    "description": { "translate": "advancement.twilightforest.progress_troll.desc",
      "with"       : [
        { "translate": "item.twilightforest.lampOfCinders.name" }
      ]
    },
    "frame": "goal"
  },
  "parent": "twilightforest:progress_merge",
  "criteria": {
    "lamp": {
      "trigger": "minecraft:inventory_changed",
      "conditions": { "items": [ { "item": "twilightforest:lamp_of_cinders" } ] }
    },
    "previous_progression": {
      "trigger": "twilightforest:has_advancement",
      "conditions": { "advancement": "twilightforest:progress_merge" }
    }
  }
}