Blessing of the Frostmaiden

{
  "name": "Blessing of the Frostmaiden",
  "page": 213,
  "type": "Blessing",
  "__prop": "reward",
  "source": "IDRotF",
  "entries": [
    "Your eyes become as cold as ice. You gain immunity to cold damage. In addition, you can cast the {@spell cone of cold} spell (save {@dc 15}) once. You regain the ability to cast this spell when you finish a long rest."
  ],
  "additionalSpells": [
    {
      "innate": {
        "_": {
          "daily": {
            "1e": [
              "cone of cold"
            ]
          }
        }
      }
    }
  ]
}