{
  "type": "bloodmagic:altar",
  "input": {
    "tag": "forge:storage_blocks/coal"
  },
  "output": {
    "item": "bloodmagic:duskscribetool",
    "nbt": "{Damage:0}"
  },
  "upgradeLevel": 3,
  "altarSyphon": 2000,
  "consumptionRate": 20,
  "drainRate": 10
}