Ancient Green Dragon

{
  "ac": [
    21
  ],
  "cr": {
    "cr": "22",
    "xpLair": 50000
  },
  "hp": {
    "average": 402,
    "formula": "23d20 + 161"
  },
  "cha": 22,
  "con": 25,
  "dex": 12,
  "int": 20,
  "str": 27,
  "wis": 17,
  "name": "Ancient Green Dragon",
  "page": 154,
  "save": {
    "dex": "+8",
    "wis": "+10"
  },
  "size": [
    "G"
  ],
  "type": {
    "tags": [
      "chromatic"
    ],
    "type": "dragon"
  },
  "group": [
    "Chromatic Dragons"
  ],
  "skill": {
    "stealth": "+8",
    "deception": "+13",
    "perception": "+17",
    "persuasion": "+13"
  },
  "speed": {
    "fly": 80,
    "swim": 40,
    "walk": 40
  },
  "srd52": true,
  "trait": [
    {
      "name": "Amphibious",
      "entries": [
        "The dragon can breathe air and water."
      ]
    },
    {
      "name": "Legendary Resistance (4/Day, or 5/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 Spellcasting to cast {@spell Mind Spike|XPHB} (level 5 version)."
      ]
    },
    {
      "name": "Rend",
      "entries": [
        "{@atkr m} {@hit 15}, reach 15 ft. {@h}17 ({@damage 2d8 + 8}) Slashing damage plus 10 ({@damage 3d6}) Poison damage."
      ]
    },
    {
      "name": "Poison Breath {@recharge 5}",
      "entries": [
        "{@actSave con} {@dc 22}, each creature in a 90-foot {@variantrule Cone [Area of Effect]|XPHB|Cone}. {@actSaveFail} 77 ({@damage 22d6}) Poison damage. {@actSaveSuccess} Half damage."
      ]
    }
  ],
  "immune": [
    "poison"
  ],
  "senses": [
    "Blindsight 60 ft.",
    "Darkvision 120 ft."
  ],
  "source": "XMM",
  "passive": 27,
  "hasFluff": true,
  "hasToken": true,
  "miscTags": [
    "AOE",
    "MA",
    "RCH"
  ],
  "treasure": [
    "arcana"
  ],
  "alignment": [
    "L",
    "E"
  ],
  "dragonAge": "ancient",
  "languages": [
    "Common",
    "Draconic"
  ],
  "legendary": [
    {
      "name": "Mind Invasion",
      "entries": [
        "The dragon uses Spellcasting to cast {@spell Mind Spike|XPHB} (level 5 version)."
      ]
    },
    {
      "name": "Noxious Miasma",
      "entries": [
        "{@actSave con} {@dc 21}, each creature in a 30-foot-radius {@variantrule Sphere [Area of Effect]|XPHB|Sphere} centered on a point the dragon can see within 90 feet. {@actSaveFail} 17 ({@damage 5d6}) Poison damage, and the target takes a -2 penalty to AC until the end of its next turn. {@actSaveSuccessOrFail} The dragon can't take this action again until the start of its next turn."
      ]
    },
    {
      "name": "Pounce",
      "entries": [
        "The dragon moves up to half its {@variantrule Speed|XPHB}, and it makes one Rend attack."
      ]
    }
  ],
  "senseTags": [
    "B",
    "SD"
  ],
  "soundClip": {
    "path": "bestiary/green-dragon.opus",
    "type": "internal"
  },
  "traitTags": [
    "Amphibious",
    "Legendary Resistances"
  ],
  "actionTags": [
    "Breath Weapon",
    "Multiattack"
  ],
  "damageTags": [
    "I",
    "S"
  ],
  "initiative": {
    "proficiency": 2
  },
  "environment": [
    "forest"
  ],
  "languageTags": [
    "C",
    "DR"
  ],
  "spellcasting": [
    {
      "name": "Spellcasting",
      "type": "spellcasting",
      "will": [
        "{@spell Detect Magic|XPHB}",
        "{@spell Mind Spike|XPHB} (level 5 version)"
      ],
      "daily": {
        "1e": [
          "{@spell Geas|XPHB}",
          "{@spell Modify Memory|XPHB}"
        ]
      },
      "ability": "cha",
      "displayAs": "action",
      "headerEntries": [
        "The dragon casts one of the following spells, requiring no Material components and using Charisma as the spellcasting ability (spell save {@dc 21}):"
      ]
    }
  ],
  "basicRules2024": true,
  "hasFluffImages": true,
  "legendaryGroup": {
    "name": "Green Dragon",
    "source": "XMM"
  },
  "conditionImmune": [
    "poisoned"
  ],
  "damageTagsSpell": [
    "Y"
  ],
  "spellcastingTags": [
    "O"
  ],
  "savingThrowForced": [
    "constitution"
  ],
  "legendaryActionsLair": 4,
  "conditionInflictSpell": [
    "charmed",
    "incapacitated"
  ],
  "savingThrowForcedSpell": [
    "wisdom"
  ],
  "savingThrowForcedLegendary": [
    "constitution"
  ]
}