Knight of Obligation

{
  "_id": "6a38905017cee8069896acc6",
  "oracle_id": "9051f778-7718-4e8d-88ff-ca2aee1b14e5",
  "name": "Knight of Obligation",
  "image_uris": {
    "small": "https://cards.scryfall.io/small/front/0/c/0c2a1100-a2e6-4ef5-a8e3-2aca552d6b66.jpg?1561815686",
    "normal": "https://cards.scryfall.io/normal/front/0/c/0c2a1100-a2e6-4ef5-a8e3-2aca552d6b66.jpg?1561815686",
    "large": "https://cards.scryfall.io/large/front/0/c/0c2a1100-a2e6-4ef5-a8e3-2aca552d6b66.jpg?1561815686",
    "png": "https://cards.scryfall.io/png/front/0/c/0c2a1100-a2e6-4ef5-a8e3-2aca552d6b66.png?1561815686",
    "art_crop": "https://cards.scryfall.io/art_crop/front/0/c/0c2a1100-a2e6-4ef5-a8e3-2aca552d6b66.jpg?1561815686",
    "border_crop": "https://cards.scryfall.io/border_crop/front/0/c/0c2a1100-a2e6-4ef5-a8e3-2aca552d6b66.jpg?1561815686"
  },
  "mana_cost": "{3}{W}",
  "cmc": 4,
  "type_line": "Creature — Human Knight",
  "oracle_text": "Vigilance\nExtort (Whenever you cast a spell, you may pay {W/B}. If you do, each opponent loses 1 life and you gain that much life.)",
  "power": "2",
  "toughness": "4",
  "colors": [
    "W"
  ],
  "keywords": [
    "Extort",
    "Vigilance"
  ],
  "legalities": {
    "standard": "not_legal",
    "future": "not_legal",
    "historic": "not_legal",
    "timeless": "not_legal",
    "gladiator": "not_legal",
    "pioneer": "legal",
    "modern": "legal",
    "legacy": "legal",
    "pauper": "not_legal",
    "vintage": "legal",
    "penny": "legal",
    "commander": "legal",
    "oathbreaker": "legal",
    "standardbrawl": "not_legal",
    "brawl": "not_legal",
    "alchemy": "not_legal",
    "paupercommander": "not_legal",
    "duel": "legal",
    "oldschool": "not_legal",
    "premodern": "not_legal",
    "predh": "not_legal",
    "tlr": "not_legal"
  },
  "foil": true,
  "nonfoil": true,
  "oversized": false,
  "set": "gtc",
  "set_name": "Gatecrash",
  "set_type": "expansion",
  "collector_number": "18",
  "rarity": "uncommon",
  "artist": "Ryan Barger",
  "prices": {
    "usd": "0.18",
    "usd_foil": "0.89",
    "usd_etched": null,
    "eur": "0.22",
    "eur_foil": "0.54",
    "tix": "0.03"
  }
}