That's So Last Millennium

Raw Blizzard Data

{
  "_links": {
    "self": {
      "href": "https://us.api.blizzard.com/data/wow/achievement/11628?namespace=static-12.1.0_68914-us"
    }
  },
  "id": 11628,
  "category": {
    "key": {
      "href": "https://us.api.blizzard.com/data/wow/achievement-category/15259?namespace=static-12.1.0_68914-us"
    },
    "name": "Appearances",
    "id": 15259
  },
  "name": "That's So Last Millennium",
  "description": "Collect any class armor set from the Nighthold.",
  "points": 10,
  "is_account_wide": true,
  "criteria": {
    "id": 57545,
    "description": "Collect a Tier 19 Set on at least 1 class.",
    "amount": 1
  },
  "media": {
    "key": {
      "href": "https://us.api.blizzard.com/data/wow/media/achievement/11628?namespace=static-12.1.0_68914-us"
    },
    "id": 11628
  },
  "display_order": 36
}