Heartstone

{
  "_id": "6a38905017cee8069896ac67",
  "oracle_id": "8f8ebf49-37c5-4da0-9cee-84ad22ab5d37",
  "name": "Heartstone",
  "image_uris": {
    "small": "https://cards.scryfall.io/small/front/0/e/0ed17325-6d2f-404e-b13f-d2d419d522b7.jpg?1562595911",
    "normal": "https://cards.scryfall.io/normal/front/0/e/0ed17325-6d2f-404e-b13f-d2d419d522b7.jpg?1562595911",
    "large": "https://cards.scryfall.io/large/front/0/e/0ed17325-6d2f-404e-b13f-d2d419d522b7.jpg?1562595911",
    "png": "https://cards.scryfall.io/png/front/0/e/0ed17325-6d2f-404e-b13f-d2d419d522b7.png?1562595911",
    "art_crop": "https://cards.scryfall.io/art_crop/front/0/e/0ed17325-6d2f-404e-b13f-d2d419d522b7.jpg?1562595911",
    "border_crop": "https://cards.scryfall.io/border_crop/front/0/e/0ed17325-6d2f-404e-b13f-d2d419d522b7.jpg?1562595911"
  },
  "mana_cost": "{3}",
  "cmc": 3,
  "type_line": "Artifact",
  "oracle_text": "Activated abilities of creatures cost {1} less to activate. This effect can't reduce the mana in that cost to less than one mana.",
  "colors": [],
  "keywords": [],
  "legalities": {
    "standard": "not_legal",
    "future": "not_legal",
    "historic": "not_legal",
    "timeless": "not_legal",
    "gladiator": "not_legal",
    "pioneer": "not_legal",
    "modern": "not_legal",
    "legacy": "legal",
    "pauper": "not_legal",
    "vintage": "legal",
    "penny": "not_legal",
    "commander": "legal",
    "oathbreaker": "legal",
    "standardbrawl": "not_legal",
    "brawl": "not_legal",
    "alchemy": "not_legal",
    "paupercommander": "not_legal",
    "duel": "legal",
    "oldschool": "not_legal",
    "premodern": "legal",
    "predh": "legal",
    "tlr": "legal"
  },
  "foil": false,
  "nonfoil": true,
  "oversized": false,
  "set": "sth",
  "set_name": "Stronghold",
  "set_type": "expansion",
  "collector_number": "134",
  "rarity": "uncommon",
  "artist": "John Matson",
  "prices": {
    "usd": "3.58",
    "usd_foil": null,
    "usd_etched": null,
    "eur": "1.27",
    "eur_foil": null,
    "tix": "0.06"
  }
}