{
  "playerBaseHp": 50,
  "milestones": [
    { "afterLevel": 5,  "unlockSpellSlot": 4, "maxHpBonus": 5 },
    { "afterLevel": 10, "unlockSpellSlot": 5, "maxHpBonus": 5 },
    { "afterLevel": 15, "maxHpBonus": 10 }
  ],
  "levels": [
    { "level": 1,  "opponentId": "ethel",     "class": "druid",    "skill": 1,  "hp": 30, "spellCount": 2,
      "tagline": "A gentle gem warm-up over tea." },
    { "level": 2,  "opponentId": "kona",      "class": "knight",   "skill": 1,  "hp": 32, "spellCount": 2,
      "tagline": "Good puppy. Surprisingly sharp teeth on those skulls." },
    { "level": 3,  "opponentId": "bernie",    "class": "knight",   "skill": 2,  "hp": 34, "spellCount": 3,
      "tagline": "All fun and games... until the skulls line up." },
    { "level": 4,  "opponentId": "brad",      "class": "assassin", "skill": 2,  "hp": 36, "spellCount": 3,
      "tagline": "He'll steal your salmon AND your mana." },
    { "level": 5,  "opponentId": "jerry",     "class": "knight",   "skill": 3,  "hp": 38, "spellCount": 3,
      "tagline": "Y'all ready for a real scrap?" },
    { "level": 6,  "opponentId": "jeff",      "class": "sorcerer", "skill": 3,  "hp": 40, "spellCount": 3,
      "tagline": "Casts slow. Wins fast. You've been warned." },
    { "level": 7,  "opponentId": "mario",     "class": "knight",   "skill": 4,  "hp": 42, "spellCount": 4,
      "tagline": "Welcome to the maze of matching gems!" },
    { "level": 8,  "opponentId": "juliet",    "class": "druid",    "skill": 4,  "hp": 44, "spellCount": 4,
      "tagline": "A summer day, a storm of mana." },
    { "level": 9,  "opponentId": "michael",   "class": "druid",    "skill": 5,  "hp": 46, "spellCount": 4,
      "tagline": "Easy vibes, heavy cascades, mon." },
    { "level": 10, "opponentId": "croc",      "class": "assassin", "skill": 5,  "hp": 48, "spellCount": 4,
      "tagline": "The party's over when your mana runs dry." },
    { "level": 11, "opponentId": "gerome",    "class": "knight",   "skill": 6,  "hp": 51, "spellCount": 4,
      "tagline": "Extreme victory or nothing!" },
    { "level": 12, "opponentId": "beth",      "class": "assassin", "skill": 6,  "hp": 54, "spellCount": 4,
      "tagline": "These parts have rules, stranger. Rule one: my turn." },
    { "level": 13, "opponentId": "steve",     "class": "sorcerer", "skill": 7,  "hp": 57, "spellCount": 5,
      "tagline": "Stupid Earth gems. Prepare to lose.",
      "weights": { "wild": 4 } },
    { "level": 14, "opponentId": "fireball",  "class": "sorcerer", "skill": 7,  "hp": 60, "spellCount": 5,
      "tagline": "No x-ray eyes. Just flawless fireballs." },
    { "level": 15, "opponentId": "natasha",   "class": "assassin", "skill": 8,  "hp": 63, "spellCount": 5,
      "tagline": "Your secrets vanish with your mana." },
    { "level": 16, "opponentId": "victor",    "class": "sorcerer", "skill": 8,  "hp": 66, "spellCount": 5,
      "tagline": "Every cascade calculated. Centuries ago." },
    { "level": 17, "opponentId": "balam",     "class": "druid",    "skill": 9,  "hp": 69, "spellCount": 5,
      "tagline": "Mystical powers meet matching gems." },
    { "level": 18, "opponentId": "cybro",     "class": "sorcerer", "skill": 9,  "hp": 72, "spellCount": 5,
      "tagline": "The future has already countered you." },
    { "level": 19, "opponentId": "zanthor",   "class": "sorcerer", "skill": 10, "hp": 74, "spellCount": 5,
      "tagline": "Alacazam! Your hit points are doomed!" },
    { "level": 20, "opponentId": "blackwind", "class": "assassin", "skill": 10, "hp": 75, "spellCount": 5,
      "tagline": "The final showdown on the high seas!",
      "weights": { "skull": 14, "skull5": 3 } }
  ]
}