[
  {
    "function": "minecraft:set_custom_data",
    "tag": "{vampsword:tag,cursed:tag,healwand:tag}"
  },
  {
    "function": "minecraft:set_attributes",
    "modifiers": [
      {
        "attribute": "attack_damage",
        "amount": 5,
        "operation": "add_value",
        "id": "258e1c52-6eaa-4bfc-b2b9-024d8be6eb3f",
        "slot": "mainhand"
      },
      {
        "attribute": "attack_speed",
        "amount": -2,
        "operation": "add_value",
        "id": "612cb983-8f14-45ee-b51b-2c8627a5ce60",
        "slot": "mainhand"
      }
    ]
  }
]