{
  "tier1drops": [
    "minecraft:iron_ingot:0-15:0-350",
    "minecraft:diamond:17-28:0-350"
  ],
  "tier2drops": [
    "minecraft:iron_ingot:0-15:0-350"
  ],
  "tier3drops": [
    "minecraft:iron_ingot:0-15:0-350"
  ],
  "tier4drops": [
    "minecraft:iron_ingot:0-15:0-350"
  ]
}