Ancient Copper Dragon

{
  "ac": [
    21
  ],
  "cr": {
    "cr": "21",
    "xpLair": 41000
  },
  "hp": {
    "average": 367,
    "formula": "21d20 + 147"
  },
  "cha": 22,
  "con": 25,
  "dex": 12,
  "int": 20,
  "str": 27,
  "wis": 17,
  "name": "Ancient Copper Dragon",
  "page": 80,
  "save": {
    "dex": "+8",
    "wis": "+10"
  },
  "size": [
    "G"
  ],
  "type": {
    "tags": [
      "metallic"
    ],
    "type": "dragon"
  },
  "group": [
    "Metallic Dragons"
  ],
  "skill": {
    "stealth": "+8",
    "deception": "+13",
    "perception": "+17"
  },
  "speed": {
    "fly": 80,
    "walk": 40,
    "climb": 40
  },
  "srd52": true,
  "trait": [
    {
      "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 (A) Slowing Breath or (B) Spellcasting to cast {@spell Mind Spike|XPHB} (level 5 version)."
      ]
    },
    {
      "name": "Rend",
      "entries": [
        "{@atkr m} {@hit 15}, reach 15 ft. {@h}19 ({@damage 2d10 + 8}) Slashing damage plus 9 ({@damage 2d8}) Acid damage."
      ]
    },
    {
      "name": "Acid Breath {@recharge 5}",
      "entries": [
        "{@actSave dex} {@dc 22}, each creature in an 90-foot-long, 10-foot-wide {@variantrule Line [Area of Effect]|XPHB|Line}. {@actSaveFail} 63 ({@damage 14d8}) Acid damage. {@actSaveSuccess} Half damage."
      ]
    },
    {
      "name": "Slowing Breath",
      "entries": [
        "{@actSave con} {@dc 22}, each creature in a 90-foot {@variantrule Cone [Area of Effect]|XPHB|Cone}. {@actSaveFail} The target can't take Reactions; its {@variantrule Speed|XPHB} is halved; and it can take either an action or a {@variantrule Bonus Action|XPHB} on its turn, not both. This effect lasts until the end of its next turn."
      ]
    }
  ],
  "immune": [
    "acid"
  ],
  "senses": [
    "Blindsight 60 ft.",
    "Darkvision 120 ft."
  ],
  "source": "XMM",
  "passive": 27,
  "hasFluff": true,
  "hasToken": true,
  "miscTags": [
    "MA",
    "RCH"
  ],
  "treasure": [
    "arcana"
  ],
  "alignment": [
    "C",
    "G"
  ],
  "dragonAge": "ancient",
  "languages": [
    "Common",
    "Draconic"
  ],
  "legendary": [
    {
      "name": "Giggling Magic",
      "entries": [
        "{@actSave cha} {@dc 21}, one creature the dragon can see within 120 feet. {@actSaveFail} 31 ({@damage 9d6}) Psychic damage. Until the end of its next turn, the target rolls {@dice 1d8} whenever it makes an ability check or attack roll and subtracts the number rolled from the {@variantrule D20 Test|XPHB}. {@actSaveSuccessOrFail} The dragon can't take this action again until the start of its next turn."
      ]
    },
    {
      "name": "Mind Jolt",
      "entries": [
        "The dragon uses Spellcasting to cast {@spell Mind Spike|XPHB} (level 5 version). 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/copper-dragon.opus",
    "type": "internal"
  },
  "traitTags": [
    "Legendary Resistances"
  ],
  "actionTags": [
    "Breath Weapon",
    "Multiattack"
  ],
  "damageTags": [
    "A",
    "S",
    "Y"
  ],
  "initiative": {
    "proficiency": 2
  },
  "environment": [
    "hill"
  ],
  "languageTags": [
    "C",
    "DR"
  ],
  "spellcasting": [
    {
      "name": "Spellcasting",
      "type": "spellcasting",
      "will": [
        "{@spell Detect Magic|XPHB}",
        "{@spell Mind Spike|XPHB} (level 5 version)",
        "{@spell Minor Illusion|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)"
      ],
      "daily": {
        "1e": [
          "{@spell Greater Restoration|XPHB}",
          "{@spell Major Image|XPHB}",
          "{@spell Project Image|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": "Copper Dragon",
    "source": "XMM"
  },
  "damageTagsSpell": [
    "Y"
  ],
  "referenceSources": [
    "FRAiF"
  ],
  "spellcastingTags": [
    "O"
  ],
  "savingThrowForced": [
    "charisma",
    "constitution",
    "dexterity"
  ],
  "legendaryActionsLair": 4,
  "savingThrowForcedSpell": [
    "wisdom"
  ],
  "savingThrowForcedLegendary": [
    "wisdom"
  ]
}