Ravenous Demon // Archdemon of Greed (#71)

[
  {
    "name": "Ravenous Demon",
    "type": "front",
    "power": "4",
    "rules": [
      "Sacrifice a Human: Transform this creature. Activate only as a sorcery."
    ],
    "types": [
      "Creature"
    ],
    "colors": [
      "B"
    ],
    "subtypes": [
      "Demon"
    ],
    "mana_cost": "{3}{B}{B}",
    "toughness": "4",
    "mana_value": 5,
    "supertypes": [],
    "flavor_text": "His twisted words entice the weak.",
    "color_identity": [
      "B"
    ]
  },
  {
    "name": "Archdemon of Greed",
    "type": "back",
    "power": "9",
    "rules": [
      "Flying, trample",
      "At the beginning of your upkeep, sacrifice a Human. If you can't, tap this creature and it deals 9 damage to you."
    ],
    "types": [
      "Creature"
    ],
    "colors": [
      "B"
    ],
    "subtypes": [
      "Demon"
    ],
    "toughness": "9",
    "mana_value": 0,
    "supertypes": [],
    "flavor_text": "\"The price is paid. The power is mine!\"",
    "color_identity": [
      "B"
    ],
    "color_indicator": [
      "B"
    ]
  }
]