Deep Dragon

{
  "name": "Deep Dragon",
  "__prop": "legendaryGroup",
  "source": "FRAiF",
  "regionalEffects": [
    "The region containing an adult or ancient deep dragon's lair is changed by its presence, creating the following effects:",
    {
      "type": "list",
      "items": [
        {
          "name": "Preservation of Knowledge",
          "type": "item",
          "entries": [
            "Books and other written forms of communication with 1 mile of the lair become magically protected and can't be damaged by nonmagical means."
          ]
        },
        {
          "name": "Restless Sleep",
          "type": "item",
          "entries": [
            "When a creature finishes a Long Rest within 1 mile of the lair, the creature makes a {@dc 10} Constitution saving throw. On a failed save, the creature doesn't reduce its Exhaustion level as a result of finishing that Long Rest. Creatures with Immunity to the Poisoned condition are immune to this effect."
          ]
        },
        {
          "name": "Verdant Growth",
          "type": "item",
          "entries": [
            "Vegetation and fungi within 1 mile of the dragon's lair grow faster and cover a greater area than normal. Foraging in this area yields twice the usual amount of food. The dragon is immediately aware of the presence of any creature that eats this enhanced vegetation."
          ]
        }
      ],
      "style": "list-hang-notitle"
    },
    "If the dragon dies or moves its lair elsewhere, these effects end immediately."
  ]
}