Adult Spirit Dragon

{
  "ac": [
    18
  ],
  "cr": {
    "cr": "15",
    "xpLair": 15000
  },
  "hp": {
    "average": 207,
    "formula": "18d12 + 90"
  },
  "cha": 19,
  "con": 21,
  "dex": 15,
  "int": 20,
  "str": 22,
  "wis": 15,
  "name": "Adult Spirit Dragon",
  "page": 278,
  "save": {
    "con": "+10",
    "dex": "+7"
  },
  "size": [
    "H"
  ],
  "type": "dragon",
  "skill": {
    "history": "+10",
    "insight": "+7",
    "stealth": "+7",
    "perception": "+7"
  },
  "speed": {
    "fly": 80,
    "walk": 40,
    "burrow": 30
  },
  "trait": [
    {
      "name": "Legendary Resistance (3/Day, or 4/Day in Lair)",
      "entries": [
        "If the dragon fails a saving throw, it can choose to succeed instead."
      ]
    }
  ],
  "__prop": "monster",
  "action": [
    {
      "name": "Multiattack",
      "entries": [
        "The dragon makes three Rend attacks. It can replace one attack with a use of (A) Time-Warping Breath or (B) Spellcasting to cast {@spell Thunderwave|XPHB}."
      ]
    },
    {
      "name": "Rend",
      "entries": [
        "{@atkr m} {@hit 11}, reach 10 ft. {@h}15 ({@damage 2d8 + 6}) Slashing damage plus 7 ({@damage 2d6}) Necrotic damage."
      ]
    },
    {
      "name": "Ruinous Breath {@recharge 5}",
      "entries": [
        "{@actSave con} {@dc 18}, each creature in a 60-foot {@variantrule Cone [Area of Effect]|XPHB|Cone}. {@actSaveFail} 63 ({@damage 14d8}) Necrotic damage. {@actSaveSuccess} Half damage."
      ]
    },
    {
      "name": "Time-Warping Breath",
      "entries": [
        "{@actSave wis} {@dc 18}, each creature that isn't currently affected by this breath in a 60-foot {@variantrule Cone [Area of Effect]|XPHB|Cone}. {@actSaveFail} The target's {@variantrule Speed|XPHB} is halved, it can't take Reactions, and it can take either an action or a {@variantrule Bonus Action|XPHB} on its turn, not both. It repeats the save at the end of each of its turns, ending the effect on itself on a success. After 1 minute, it succeeds automatically."
      ]
    }
  ],
  "resist": [
    "necrotic"
  ],
  "senses": [
    "Blindsight 30 ft.",
    "Darkvision 120 ft."
  ],
  "source": "FRAiF",
  "passive": 17,
  "hasFluff": true,
  "hasToken": true,
  "miscTags": [
    "AOE",
    "MA",
    "RCH"
  ],
  "treasure": [
    "any"
  ],
  "alignment": [
    "N"
  ],
  "dragonAge": "adult",
  "languages": [
    "Common",
    "Draconic; telepathy 120 ft."
  ],
  "legendary": [
    {
      "name": "Pounce",
      "entries": [
        "The dragon moves up to half its {@variantrule Speed|XPHB}, and it makes one Rend attack."
      ]
    },
    {
      "name": "Shattering Wave",
      "entries": [
        "The dragon uses Spellcasting to cast {@spell Thunderwave|XPHB}."
      ]
    },
    {
      "name": "Unearth Ruins",
      "entries": [
        "The dragon magically raises broken, ancient ruins in a 20-foot-radius, 60-foot-high {@variantrule Cylinder [Area of Effect]|XPHB|Cylinder} centered on a point it can see within 120 feet. Ground in the {@variantrule Cylinder [Area of Effect]|XPHB|Cylinder} becomes {@variantrule Difficult Terrain|XPHB}. Each creature in the {@variantrule Cylinder [Area of Effect]|XPHB|Cylinder} when it appears is subjected to the following effect. {@actSave str} {@dc 18}. {@actSaveFail} 5 ({@damage 2d4}) Bludgeoning damage, and the target has the {@condition Prone|XPHB} condition. {@actSaveSuccessOrFail} The dragon can't take this action again until the start of its next turn."
      ]
    }
  ],
  "senseTags": [
    "B",
    "SD"
  ],
  "traitTags": [
    "Legendary Resistances"
  ],
  "actionTags": [
    "Breath Weapon",
    "Multiattack"
  ],
  "damageTags": [
    "B",
    "N",
    "S"
  ],
  "initiative": {
    "proficiency": 1
  },
  "environment": [
    "any"
  ],
  "languageTags": [
    "C",
    "DR",
    "TP"
  ],
  "spellcasting": [
    {
      "name": "Spellcasting",
      "type": "spellcasting",
      "will": [
        "{@spell Detect Magic|XPHB}",
        "{@spell Shapechange|XPHB} (Beast or Humanoid form only, no {@variantrule Temporary Hit Points|XPHB} gained from the spell, and no {@status Concentration|XPHB} or {@variantrule Temporary Hit Points|XPHB} required to maintain the spell)",
        "{@spell Thunderwave|XPHB}"
      ],
      "daily": {
        "1": [
          "{@spell Legend Lore|XPHB} (as an action)"
        ]
      },
      "ability": "int",
      "displayAs": "action",
      "headerEntries": [
        "The dragon casts one of the following spells, requiring no spell components and using Intelligence as the spellcasting ability (spell save {@dc 18}):"
      ]
    }
  ],
  "hasFluffImages": true,
  "legendaryGroup": {
    "name": "Spirit Dragon",
    "source": "FRAiF"
  },
  "damageTagsSpell": [
    "T"
  ],
  "conditionInflict": [
    "prone"
  ],
  "spellcastingTags": [
    "O"
  ],
  "savingThrowForced": [
    "constitution",
    "strength",
    "wisdom"
  ],
  "dragonCastingColor": "spirit",
  "legendaryActionsLair": 4,
  "savingThrowForcedSpell": [
    "constitution"
  ]
}