Geryon

{
  "name": "Geryon",
  "page": 136,
  "__prop": "legendaryGroup",
  "source": "MPMM",
  "lairActions": [
    "On initiative count 20 (losing initiative ties), Geryon can take one of the following lair actions; he can't take the same lair action two rounds in a row:",
    {
      "type": "list",
      "items": [
        {
          "name": "Banish",
          "type": "item",
          "entries": [
            "Geryon casts the banishment spell."
          ]
        },
        {
          "name": "Chill Blast",
          "type": "item",
          "entries": [
            "Geryon causes a blast of cold to burst from the ground at a point he can see within 120 feet of him. The cold fills a cube, 10 feet on each side, centered on that point. Each creature in that area must succeed on a {@dc 21} Constitution saving throw or take 28 ({@damage 8d6}) cold damage."
          ]
        },
        {
          "name": "Hateful Restraints",
          "type": "item",
          "entries": [
            "Geryon targets one creature he can see within 60 feet of him. The target must succeed on a {@dc 21} Wisdom saving throw or become {@condition restrained} for 1 minute. The target can end the effect on itself if it deals any damage to one or more of its allies."
          ]
        }
      ],
      "style": "list-hang-notitle"
    }
  ],
  "regionalEffects": [
    "The region containing Geryon's lair is warped by his magic, creating one or more of the following effects:",
    {
      "type": "list",
      "items": [
        {
          "name": "Chilling Wind",
          "type": "item",
          "entries": [
            "Freezing strong winds howl around the area within 1 mile of the lair."
          ]
        },
        {
          "name": "Enervating Screams",
          "type": "item",
          "entries": [
            "Howls and screams fill the air within 1 mile of the lair. Any creature that finishes a short or long rest in this area must succeed on a {@dc 21} Wisdom saving throw or derive no benefit from the rest."
          ]
        },
        {
          "name": "Hellish Doorways",
          "type": "item",
          "entries": [
            "Sapient creatures within 1 mile of the lair frequently see shimmering portals leading to places they consider safe. Passing through a portal always deposits a traveler somewhere in Stygia."
          ]
        }
      ],
      "style": "list-hang-notitle"
    },
    "If Geryon dies, these effects fade over the course of {@dice 1d10} days."
  ]
}