That's Just Cruel

Raw Blizzard Data

{
  "_links": {
    "self": {
      "href": "https://us.api.blizzard.com/data/wow/achievement/18898?namespace=static-12.1.0_68914-us"
    }
  },
  "id": 18898,
  "category": {
    "key": {
      "href": "https://us.api.blizzard.com/data/wow/achievement-category/15495?namespace=static-12.1.0_68914-us"
    },
    "name": "Leatherworking",
    "id": 15495
  },
  "name": "That's Just Cruel",
  "description": "Defeat Nefarian within Blackwing Lair while the Onyxia Scale Cloak is equipped. Do the same within Blackwing Descent, just to get the point across.",
  "points": 5,
  "is_account_wide": true,
  "criteria": {
    "id": 149176,
    "description": "Slay Nefarians",
    "amount": 0,
    "operator": {
      "type": "AND",
      "name": "Complete All"
    },
    "child_criteria": [
      {
        "id": 149177,
        "description": "Nefarian Defeated",
        "amount": 1
      },
      {
        "id": 149178,
        "description": "Nefarian Defeated (Again)",
        "amount": 1
      }
    ]
  },
  "media": {
    "key": {
      "href": "https://us.api.blizzard.com/data/wow/media/achievement/18898?namespace=static-12.1.0_68914-us"
    },
    "id": 18898
  },
  "display_order": 21
}