[
  {
    "type": "monstergroup",
    "id": "GROUP_BREATHER",
    "monsters": [
      { "monster": "mon_breather", "weight": 990 },
      { "monster": "mon_breather", "weight": 10, "cost_multiplier": 2, "pack_size": [ 2, 4 ] }
    ]
  },
  {
    "type": "monstergroup",
    "id": "GROUP_BREATHER_HUB",
    "monsters": [ { "monster": "mon_breather_hub" } ]
  },
  {
    "type": "monstergroup",
    "id": "GROUP_CHURCH_BLANK",
    "monsters": [ { "monster": "mon_blank", "cost_multiplier": 0 } ]
  },
  {
    "id": "GROUP_DARK_WYRM",
    "type": "monstergroup",
    "monsters": [ { "monster": "mon_dark_wyrm" } ]
  },
  {
    "type": "monstergroup",
    "id": "GROUP_DOG_THING",
    "monsters": [ { "monster": "mon_dog_thing" } ]
  },
  {
    "type": "monstergroup",
    "id": "GROUP_NETHER_REALITY_TEAR_FIELD",
    "default": "mon_blank",
    "monsters": [
      { "monster": "mon_flying_polyp", "weight": 100, "cost_multiplier": 0 },
      { "monster": "mon_hunting_horror", "weight": 100, "cost_multiplier": 0 },
      { "monster": "mon_mi_go", "weight": 100, "cost_multiplier": 0 },
      { "monster": "mon_unseen_hunter", "weight": 100, "starts": "30 days" },
      { "monster": "mon_mi_go_scout", "weight": 100, "cost_multiplier": 0, "starts": "60 days" },
      { "monster": "mon_yugg", "weight": 100, "cost_multiplier": 0 },
      { "monster": "mon_gelatin", "weight": 100, "cost_multiplier": 0 },
      { "monster": "mon_flaming_eye", "weight": 100, "cost_multiplier": 0 },
      { "monster": "mon_kreck", "weight": 100, "cost_multiplier": 0 },
      { "monster": "mon_gracke", "weight": 100, "cost_multiplier": 0 },
      { "monster": "mon_blank", "weight": 100, "cost_multiplier": 0 }
    ]
  },
  {
    "type": "monstergroup",
    "id": "GROUP_NETHER",
    "default": "mon_blank",
    "monsters": [
      { "monster": "mon_blank", "weight": 135, "cost_multiplier": 0 },
      { "monster": "mon_flying_polyp", "weight": 25, "cost_multiplier": 0 },
      { "monster": "mon_hunting_horror", "weight": 240, "cost_multiplier": 0 },
      { "monster": "mon_unseen_hunter", "weight": 50, "cost_multiplier": 0, "starts": "120 days" },
      { "monster": "mon_yugg", "weight": 70, "cost_multiplier": 0 },
      { "monster": "mon_gelatin", "weight": 120, "cost_multiplier": 0 },
      { "monster": "mon_flaming_eye", "weight": 120, "cost_multiplier": 0 },
      { "monster": "mon_kreck", "weight": 210, "cost_multiplier": 0 },
      { "monster": "mon_gozu", "weight": 25, "cost_multiplier": 0 },
      { "monster": "mon_shoggoth", "weight": 5, "cost_multiplier": 0 }
    ]
  },
  {
    "type": "monstergroup",
    "id": "GROUP_NETHER_CAPTURED",
    "default": "mon_gracke",
    "monsters": [
      { "monster": "mon_gelatin", "weight": 250, "cost_multiplier": 0 },
      { "monster": "mon_mi_go", "weight": 250, "cost_multiplier": 0 },
      { "monster": "mon_mi_go_scout", "weight": 250, "cost_multiplier": 0, "starts": "60 days" },
      { "monster": "mon_kreck", "weight": 250, "cost_multiplier": 0 },
      { "monster": "mon_gracke", "weight": 250, "cost_multiplier": 0 }
    ]
  },
  {
    "type": "monstergroup",
    "id": "GROUP_NETHER_PORTAL",
    "default": "mon_gracke",
    "monsters": [
      { "monster": "mon_gelatin", "weight": 200, "cost_multiplier": 0 },
      { "monster": "mon_flaming_eye", "weight": 200, "cost_multiplier": 0 },
      { "monster": "mon_kreck", "weight": 200, "cost_multiplier": 0 },
      { "monster": "mon_gracke", "weight": 200, "cost_multiplier": 0 },
      { "monster": "mon_unseen_hunter", "weight": 100, "cost_multiplier": 0, "starts": "120 days" },
      { "monster": "mon_blank", "weight": 200, "cost_multiplier": 0 }
    ]
  },
  {
    "type": "monstergroup",
    "id": "GROUP_SPIRAL",
    "monsters": [
      { "monster": "mon_human_snail", "weight": 740, "cost_multiplier": 0 },
      { "monster": "mon_twisted_body", "weight": 180, "cost_multiplier": 0 },
      { "monster": "mon_vortex", "weight": 80, "cost_multiplier": 0 }
    ]
  },
  {
    "type": "monstergroup",
    "id": "GROUP_TINDALOS",
    "monsters": [ { "monster": "mon_hound_tindalos" } ]
  }
]
