{
  "anvil_cost": 4,
  "description": "§2\uE013 Penetration",
  "effects": {
    "minecraft:armor_effectiveness": [
      {
        "effect": {
          "type": "minecraft:add",
          "value": {
            "type": "minecraft:linear",
            "base": -0.1,
            "per_level_above_first": -0.1
          }
        }
      }
    ]
  },
  "max_cost": {
    "base": 65,
    "per_level_above_first": 9
  },
  "max_level": 3,
  "min_cost": {
    "base": 15,
    "per_level_above_first": 9
  },
  "slots": [
    "mainhand"
  ],
  "supported_items": "#vb:enchantable/penetration",
  "weight": 3
}