Riverine

{
  "ac": [
    14
  ],
  "cr": "12",
  "hp": {
    "average": 204,
    "formula": "24d10 + 72"
  },
  "cha": 21,
  "con": 17,
  "dex": 19,
  "int": 12,
  "str": 20,
  "wis": 16,
  "name": "Riverine",
  "page": 133,
  "save": {
    "cha": "+9",
    "int": "+5",
    "wis": "+7"
  },
  "size": [
    "L"
  ],
  "type": "fey",
  "bonus": [
    {
      "name": "Whirlpool Step",
      "entries": [
        "The riverine magically teleports to an unoccupied space it can see within 30 feet of itself. Both the space it leaves and its destination must be in or on the surface of water."
      ]
    }
  ],
  "skill": {
    "nature": "+5",
    "insight": "+7",
    "perception": "+7"
  },
  "speed": {
    "swim": 60,
    "walk": 30
  },
  "trait": [
    {
      "name": "Amphibious",
      "entries": [
        "The riverine can breathe air and water."
      ]
    },
    {
      "name": "Legendary Resistance (3/Day)",
      "entries": [
        "If the riverine fails a saving throw, it can choose to succeed instead."
      ]
    }
  ],
  "__prop": "monster",
  "action": [
    {
      "name": "Multiattack",
      "entries": [
        "The riverine makes two Flood Strike attacks."
      ]
    },
    {
      "name": "Flood Strike",
      "entries": [
        "{@atk mw} {@hit 9} to hit, reach 10 ft., one target. {@h}14 ({@damage 2d8 + 5}) bludgeoning damage plus 10 ({@damage 3d6}) cold damage."
      ]
    }
  ],
  "resist": [
    "acid",
    "fire"
  ],
  "senses": [
    "blindsight 60 ft."
  ],
  "source": "JttRC",
  "passive": 17,
  "hasFluff": true,
  "hasToken": true,
  "miscTags": [
    "AOE",
    "MW",
    "RCH"
  ],
  "alignment": [
    "A"
  ],
  "languages": [
    "Aquan",
    "Common",
    "Sylvan"
  ],
  "legendary": [
    {
      "name": "Whirlpool Rush",
      "entries": [
        "The riverine uses its Whirlpool Step. Immediately after it teleports, each creature within 5 feet of the riverine's destination space takes 5 ({@damage 1d10}) cold damage."
      ]
    },
    {
      "name": "Raging Deluge (Costs 2 Actions)",
      "entries": [
        "The riverine unleashes a torrent of river water in a 30-foot line that is 5 feet wide. Each creature in that area must make a {@dc 17} Dexterity saving throw. On a failed save, a creature takes 11 ({@damage 2d10}) bludgeoning damage and is knocked {@condition prone}. On a successful save, a creature takes half as much damage and isn't knocked {@condition prone}."
      ]
    }
  ],
  "senseTags": [
    "B"
  ],
  "traitTags": [
    "Amphibious",
    "Legendary Resistances"
  ],
  "actionTags": [
    "Multiattack"
  ],
  "damageTags": [
    "B",
    "C"
  ],
  "languageTags": [
    "AQ",
    "C",
    "S"
  ],
  "spellcasting": [
    {
      "name": "Spellcasting",
      "type": "spellcasting",
      "will": [
        "{@spell control water}",
        "{@spell fog cloud}"
      ],
      "daily": {
        "1": [
          "{@spell greater restoration}"
        ]
      },
      "ability": "cha",
      "displayAs": "action",
      "headerEntries": [
        "The riverine casts one of the following spells, requiring no material components and using Charisma as the spellcasting ability (spell save {@dc 17}):"
      ]
    }
  ],
  "hasFluffImages": true,
  "legendaryGroup": {
    "name": "Riverine",
    "source": "JttRC"
  },
  "conditionInflict": [
    "prone"
  ],
  "spellcastingTags": [
    "O"
  ],
  "savingThrowForced": [
    "dexterity"
  ],
  "savingThrowForcedSpell": [
    "strength"
  ],
  "savingThrowForcedLegendary": [
    "wisdom"
  ]
}