Doubling Cube // Doubling Cube (#1080)

[
  {
    "name": "Doubling Cube",
    "type": "front",
    "rules": [
      "{3}, {T}: Double the amount of each type of unspent mana you have."
    ],
    "types": [
      "Artifact"
    ],
    "colors": [],
    "subtypes": [],
    "mana_cost": "{2}",
    "supertypes": [],
    "flavor_text": "\"Freedom is the right of all sentient beings.\"\n—Optimus Prime",
    "color_identity": []
  },
  {
    "name": "Doubling Cube",
    "type": "back",
    "rules": [
      "{3}, {T}: Double the amount of each type of unspent mana you have."
    ],
    "types": [
      "Artifact"
    ],
    "colors": [],
    "subtypes": [],
    "mana_cost": "{2}",
    "supertypes": [],
    "flavor_text": "\"Peace through tyranny.\"\n—Megatron",
    "color_identity": []
  }
]