Charm of Invisibility

{
  "name": "Charm of Invisibility",
  "page": 228,
  "type": "Charm",
  "__prop": "reward",
  "source": "IDRotF",
  "entries": [
    "This charm allows you to cast the {@spell invisibility} spell as an action, no components required. Once used three times, this charm vanishes from you."
  ],
  "additionalSpells": [
    {
      "innate": {
        "_": {
          "limited": {
            "3": [
              "invisibility"
            ]
          }
        }
      }
    }
  ]
}