Erayo, Soratami Ascendant // Erayo's Essence (#35)

[
  {
    "name": "Erayo, Soratami Ascendant",
    "type": "front",
    "power": "1",
    "rules": [
      "Flying",
      "Whenever the fourth spell of a turn is cast, flip Erayo."
    ],
    "types": [
      "Creature"
    ],
    "colors": [
      "U"
    ],
    "subtypes": [
      "Moonfolk",
      "Monk"
    ],
    "mana_cost": "{1}{U}",
    "toughness": "1",
    "supertypes": [
      "Legendary"
    ],
    "color_identity": [
      "U"
    ]
  },
  {
    "name": "Erayo's Essence",
    "type": "back",
    "rules": [
      "Whenever an opponent casts their first spell each turn, counter that spell."
    ],
    "types": [
      "Enchantment"
    ],
    "colors": [
      "U"
    ],
    "subtypes": [],
    "supertypes": [
      "Legendary"
    ],
    "color_identity": [
      "U"
    ]
  }
]