booster_simulator.rb

require 'json'

cards = JSON.parse(File.open('THS.json').read)['cards']

RARE_TO_MYTHIC_MULTIPLIER = 2
NUMBER_OF_EACH_MYTHIC_PRINTED = 100
NUMBER_OF_BOOSTERS = 200

cards_in_set = {
  'Mythic Rare' => [],
  'Rare' => [],
  'Uncommon' => [],
  'Common' => [],
  'Basic Land' => [],
}
print_run = []

cards.each do |card|
  cards_in_set[card['rarity']] << card['name']
end

NUMBER_OF_EACH_MYTHIC_PRINTED.times do
  cards_in_set['Mythic Rare'].each do |card|
    print_run << card
  end

  cards_in_set['Rare'].each do |card|
    RARE_TO_MYTHIC_MULTIPLIER.times do
      print_run << card
    end
  end
end

print_run.shuffle!

contents_of_boosters = Hash.new(0)
print_run[0..NUMBER_OF_BOOSTERS].each do |card|
  contents_of_boosters[card] += 1
end

puts contents_of_boosters

example_output.json

# Assuming 1 of each Mythic, 2 of each Rare, and opening 200 boosters
{
  "Abhorrent Overlord": 2,
  "Agent of the Fates": 2,
  "Akroan Horse": 2,
  "Anax and Cymede": 2,
  "Anger of the Gods": 2,
  "Anthousa, Setessan Hero": 2,
  "Arbor Colossus": 2,
  "Artisan of Forms": 2,
  "Ashen Rider": 1,
  "Ashiok, Nightmare Weaver": 1,
  "Bident of Thassa": 2,
  "Boon Satyr": 2,
  "Bow of Nylea": 2,
  "Celestial Archon": 2,
  "Chained to the Rocks": 2,
  "Colossus of Akros": 2,
  "Curse of the Swine": 2,
  "Daxos of Meletis": 2,
  "Elspeth, Sun's Champion": 1,
  "Ember Swallower": 2,
  "Erebos, God of the Dead": 1,
  "Fabled Hero": 2,
  "Firedrinker Satyr": 2,
  "Fleecemane Lion": 2,
  "Gift of Immortality": 2,
  "Hammer of Purphoros": 2,
  "Heliod, God of the Sun": 1,
  "Hero's Downfall": 2,
  "Hundred-Handed One": 2,
  "Hythonia the Cruel": 1,
  "Labyrinth Champion": 2,
  "Master of Waves": 1,
  "Medomai the Ageless": 1,
  "Meletis Charlatan": 2,
  "Mistcutter Hydra": 2,
  "Nighthowler": 2,
  "Nykthos, Shrine to Nyx": 2,
  "Nylea, God of the Hunt": 1,
  "Polis Crusher": 2,
  "Polukranos, World Eater": 1,
  "Prognostic Sphinx": 2,
  "Prophet of Kruphix": 2,
  "Psychic Intrusion": 2,
  "Purphoros, God of the Forge": 1,
  "Pyxis of Pandemonium": 2,
  "Rageblood Shaman": 2,
  "Reaper of the Wilds": 2,
  "Reverent Hunter": 2,
  "Shipbreaker Kraken": 2,
  "Soldier of the Pantheon": 2,
  "Spear of Heliod": 2,
  "Steam Augury": 2,
  "Stormbreath Dragon": 1,
  "Swan Song": 2,
  "Sylvan Caryatid": 2,
  "Temple of Abandon": 2,
  "Temple of Deceit": 2,
  "Temple of Mystery": 2,
  "Temple of Silence": 2,
  "Temple of Triumph": 2,
  "Thassa, God of the Sea": 1,
  "Thoughtseize": 2,
  "Titan of Eternal Fire": 2,
  "Triad of Fates": 2,
  "Tymaret, the Murder King": 2,
  "Underworld Cerberus": 1,
  "Whip of Erebos": 2,
  "Xenagos, the Reveler": 1
}

example_output3.json

# Assuming 100 of each Mythic, 200 of each Rare, and opening 200 boosters
{
  "Abhorrent Overlord": 6,
  "Agent of the Fates": 7,
  "Akroan Horse": 3,
  "Anax and Cymede": 3,
  "Anger of the Gods": 2,
  "Anthousa, Setessan Hero": 6,
  "Arbor Colossus": 2,
  "Artisan of Forms": 3,
  "Ashen Rider": 3,
  "Ashiok, Nightmare Weaver": 1,
  "Bident of Thassa": 4,
  "Boon Satyr": 2,
  "Bow of Nylea": 3,
  "Celestial Archon": 6,
  "Chained to the Rocks": 4,
  "Curse of the Swine": 1,
  "Daxos of Meletis": 2,
  "Ember Swallower": 2,
  "Erebos, God of the Dead": 1,
  "Fabled Hero": 4,
  "Firedrinker Satyr": 5,
  "Fleecemane Lion": 3,
  "Gift of Immortality": 2,
  "Hammer of Purphoros": 4,
  "Heliod, God of the Sun": 2,
  "Hero's Downfall": 7,
  "Hundred-Handed One": 4,
  "Labyrinth Champion": 2,
  "Master of Waves": 1,
  "Medomai the Ageless": 1,
  "Meletis Charlatan": 3,
  "Mistcutter Hydra": 3,
  "Nighthowler": 4,
  "Nykthos, Shrine to Nyx": 1,
  "Polis Crusher": 5,
  "Polukranos, World Eater": 1,
  "Prognostic Sphinx": 3,
  "Prophet of Kruphix": 3,
  "Psychic Intrusion": 6,
  "Purphoros, God of the Forge": 2,
  "Pyxis of Pandemonium": 5,
  "Rageblood Shaman": 2,
  "Reaper of the Wilds": 1,
  "Reverent Hunter": 3,
  "Shipbreaker Kraken": 1,
  "Soldier of the Pantheon": 4,
  "Spear of Heliod": 5,
  "Steam Augury": 1,
  "Stormbreath Dragon": 2,
  "Swan Song": 5,
  "Sylvan Caryatid": 2,
  "Temple of Abandon": 9,
  "Temple of Deceit": 2,
  "Temple of Mystery": 3,
  "Temple of Silence": 5,
  "Thassa, God of the Sea": 2,
  "Thoughtseize": 5,
  "Titan of Eternal Fire": 5,
  "Triad of Fates": 1,
  "Tymaret, the Murder King": 3,
  "Underworld Cerberus": 1,
  "Whip of Erebos": 4,
  "Xenagos, the Reveler": 3
}

output_example2.json

# Assuming 100 of each Mythic, 200 of each Rare, and opening 6 cases (36*6*6) boosters
{
  "Abhorrent Overlord": 29,
  "Agent of the Fates": 33,
  "Akroan Horse": 24,
  "Anax and Cymede": 21,
  "Anger of the Gods": 26,
  "Anthousa, Setessan Hero": 27,
  "Arbor Colossus": 24,
  "Artisan of Forms": 18,
  "Ashen Rider": 10,
  "Ashiok, Nightmare Weaver": 14,
  "Bident of Thassa": 22,
  "Boon Satyr": 26,
  "Bow of Nylea": 19,
  "Celestial Archon": 25,
  "Chained to the Rocks": 28,
  "Colossus of Akros": 20,
  "Curse of the Swine": 21,
  "Daxos of Meletis": 20,
  "Elspeth, Sun's Champion": 12,
  "Ember Swallower": 14,
  "Erebos, God of the Dead": 8,
  "Fabled Hero": 26,
  "Firedrinker Satyr": 22,
  "Fleecemane Lion": 19,
  "Gift of Immortality": 26,
  "Hammer of Purphoros": 19,
  "Heliod, God of the Sun": 16,
  "Hero's Downfall": 24,
  "Hundred-Handed One": 18,
  "Hythonia the Cruel": 11,
  "Labyrinth Champion": 23,
  "Master of Waves": 9,
  "Medomai the Ageless": 10,
  "Meletis Charlatan": 17,
  "Mistcutter Hydra": 18,
  "Nighthowler": 26,
  "Nykthos, Shrine to Nyx": 22,
  "Nylea, God of the Hunt": 11,
  "Polis Crusher": 21,
  "Polukranos, World Eater": 14,
  "Prognostic Sphinx": 19,
  "Prophet of Kruphix": 18,
  "Psychic Intrusion": 19,
  "Purphoros, God of the Forge": 9,
  "Pyxis of Pandemonium": 14,
  "Rageblood Shaman": 21,
  "Reaper of the Wilds": 24,
  "Reverent Hunter": 22,
  "Shipbreaker Kraken": 23,
  "Soldier of the Pantheon": 24,
  "Spear of Heliod": 24,
  "Steam Augury": 18,
  "Stormbreath Dragon": 15,
  "Swan Song": 21,
  "Sylvan Caryatid": 17,
  "Temple of Abandon": 18,
  "Temple of Deceit": 22,
  "Temple of Mystery": 18,
  "Temple of Silence": 18,
  "Temple of Triumph": 21,
  "Thassa, God of the Sea": 7,
  "Thoughtseize": 25,
  "Titan of Eternal Fire": 16,
  "Triad of Fates": 20,
  "Tymaret, the Murder King": 13,
  "Underworld Cerberus": 6,
  "Whip of Erebos": 24,
  "Xenagos, the Reveler": 8
}