Elemental Cataclysm

CreatureXMMp. 1112024

Gargantuan elemental, chaotic neutral

Armor Class
20
Hit Points
370 (20d20 + 160)
Speed
fly 80 ft. (hover), swim 80 ft., 60 ft., burrow 60 ft., canHover true ft.
Challenge
22 (41,000 XP)
STR
26
+8
DEX
19
+4
CON
27
+8
INT
9
-1
WIS
14
+2
CHA
9
-1
Saving Throws
Cha +6, Con +15, Dex +11, Wis +9
Damage Immunities
acid; cold; fire; lightning; poison; thunder
Condition Immunities
blinded; charmed; deafened; exhaustion; frightened; grappled; paralyzed; petrified; poisoned; prone; restrained; stunned; unconscious
Senses
Truesight 150 ft., passive Perception 12
Languages
Primordial

Traits

Earth Glide.

The cataclysm can burrow through nonmagical, unworked earth and stone. While doing so, the cataclysm doesn't disturb the material it moves through.

Legendary Resistance (4/Day).

If the cataclysm fails a saving throw, it can choose to succeed instead.

Siege Monster.

The cataclysm deals double damage to objects and structures.

Actions

Multiattack.

The cataclysm makes two Elemental Burst attacks.

Elemental Burst.

Melee or Ranged Attack Roll: +15, reach 30 ft. or range 150 ft. Hit: 25 (5d6 + 8) damage of a type chosen by the cataclysm: Acid, Cold, Fire, Lightning, or Thunder.

Cataclysmic Event 4.

The cataclysm creates one of the following effects at random (roll 1d4):

  • 1: Clinging Flames. dex DC 23, each creature in a 60-foot-radius Sphere centered on a point the cataclysm can see within 150 feet. 45 (13d6) Fire damage. Half damage. The target starts burning.
  • 2: Freezing Waves. str DC 23, each creature in a 90-foot Cone. 22 (5d8) Bludgeoning damage plus 22 (5d8) Cold damage, and the target has the Prone condition. Half damage only. The target's Speed is reduced to 0 until the end of its next turn.
  • 3: Raging Storm. A storm cloud fills a 60-foot-radius Sphere centered on a point the cataclysm can see within 150 feet. The cloud lasts for 1 minute or until the cataclysm uses Cataclysmic Event again. Creatures entirely in the cloud have the Blinded and Deafened conditions and can't cast spells with a Verbal component. dex DC 23, each creature that enters the cloud for the first time on a turn or starts its turn there. 18 (4d8) Lightning damage plus 18 (4d8) Thunder damage. Half damage.
  • 4: Swallowing Earth. str DC 23, each creature in a 90-foot Cube originating from a point on the ground within 150 feet. 18 (4d8) Bludgeoning damage plus 18 (4d8) Acid damage, and the target has the Prone condition and is buried under rubble. A buried target has the Restrained condition, has Total Cover, and is suffocating. As an action, a buried creature or another creature within 5 feet of it can make a DC 18 Strength (Athletics) check. On a successful check, the creature is no longer buried. Half damage only.

Legendary Actions

Eruption.

The cataclysm makes one Elemental Burst attack.

Rumbling Movement.

The cataclysm moves up to its Speed, Fly Speed, or Swim Speed without provoking Opportunity Attacks. Each creature within 5 feet of the cataclysm as it moves is targeted once by the following effect. con DC 23. The target has the Prone condition. The cataclysm can't take this action again until the start of its next turn.

Spellcasting

Control Weather.

The cataclysm casts the Control Weather spell, requiring no spell components and using Constitution as the spellcasting ability.

Raw data
{
  "ac": [
    20
  ],
  "cr": "22",
  "hp": {
    "average": 370,
    "formula": "20d20 + 160"
  },
  "cha": 9,
  "con": 27,
  "dex": 19,
  "int": 9,
  "str": 26,
  "wis": 14,
  "name": "Elemental Cataclysm",
  "page": 111,
  "save": {
    "cha": "+6",
    "con": "+15",
    "dex": "+11",
    "wis": "+9"
  },
  "size": [
    "G"
  ],
  "type": {
    "tags": [
      "titan"
    ],
    "type": "elemental"
  },
  "group": [
    "Titans"
  ],
  "speed": {
    "fly": {
      "number": 80,
      "condition": "(hover)"
    },
    "swim": 80,
    "walk": 60,
    "burrow": 60,
    "canHover": true
  },
  "trait": [
    {
      "name": "Earth Glide",
      "entries": [
        "The cataclysm can burrow through nonmagical, unworked earth and stone. While doing so, the cataclysm doesn't disturb the material it moves through."
      ]
    },
    {
      "name": "Legendary Resistance (4/Day)",
      "entries": [
        "If the cataclysm fails a saving throw, it can choose to succeed instead."
      ]
    },
    {
      "name": "Siege Monster",
      "entries": [
        "The cataclysm deals double damage to objects and structures."
      ]
    }
  ],
  "__prop": "monster",
  "action": [
    {
      "name": "Multiattack",
      "entries": [
        "The cataclysm makes two Elemental Burst attacks."
      ]
    },
    {
      "name": "Elemental Burst",
      "entries": [
        "{@atkr m,r} {@hit 15}, reach 30 ft. or range 150 ft. {@h}25 ({@damage 5d6 + 8}) damage of a type chosen by the cataclysm: Acid, Cold, Fire, Lightning, or Thunder."
      ]
    },
    {
      "name": "Cataclysmic Event {@recharge 4}",
      "entries": [
        "The cataclysm creates one of the following effects at random (roll {@dice 1d4}):",
        {
          "type": "list",
          "items": [
            {
              "name": "1: Clinging Flames",
              "type": "item",
              "entries": [
                "{@actSave dex} {@dc 23}, each creature in a 60-foot-radius {@variantrule Sphere [Area of Effect]|XPHB|Sphere} centered on a point the cataclysm can see within 150 feet. {@actSaveFail} 45 ({@damage 13d6}) Fire damage. {@actSaveSuccess} Half damage. {@actSaveSuccessOrFail} The target starts {@hazard burning|XPHB}."
              ]
            },
            {
              "name": "2: Freezing Waves",
              "type": "item",
              "entries": [
                "{@actSave str} {@dc 23}, each creature in a 90-foot {@variantrule Cone [Area of Effect]|XPHB|Cone}. {@actSaveFail} 22 ({@damage 5d8}) Bludgeoning damage plus 22 ({@damage 5d8}) Cold damage, and the target has the {@condition Prone|XPHB} condition. {@actSaveSuccess} Half damage only. {@actSaveSuccessOrFail} The target's {@variantrule Speed|XPHB} is reduced to 0 until the end of its next turn."
              ]
            },
            {
              "name": "3: Raging Storm",
              "type": "item",
              "entries": [
                "A storm cloud fills a 60-foot-radius {@variantrule Sphere [Area of Effect]|XPHB|Sphere} centered on a point the cataclysm can see within 150 feet. The cloud lasts for 1 minute or until the cataclysm uses Cataclysmic Event again. Creatures entirely in the cloud have the {@condition Blinded|XPHB} and {@condition Deafened|XPHB} conditions and can't cast spells with a Verbal component. {@actSave dex} {@dc 23}, each creature that enters the cloud for the first time on a turn or starts its turn there. {@actSaveFail} 18 ({@damage 4d8}) Lightning damage plus 18 ({@damage 4d8}) Thunder damage. {@actSaveSuccess} Half damage."
              ]
            },
            {
              "name": "4: Swallowing Earth",
              "type": "item",
              "entries": [
                "{@actSave str} {@dc 23}, each creature in a 90-foot {@variantrule Cube [Area of Effect]|XPHB|Cube} originating from a point on the ground within 150 feet. {@actSaveFail} 18 ({@damage 4d8}) Bludgeoning damage plus 18 ({@damage 4d8}) Acid damage, and the target has the {@condition Prone|XPHB} condition and is buried under rubble. A buried target has the {@condition Restrained|XPHB} condition, has {@variantrule Cover|XPHB|Total Cover}, and is suffocating. As an action, a buried creature or another creature within 5 feet of it can make a {@dc 18} Strength ({@skill Athletics|XPHB}) check. On a successful check, the creature is no longer buried. {@actSaveSuccess} Half damage only."
              ]
            }
          ],
          "style": "list-hang-notitle"
        }
      ]
    }
  ],
  "immune": [
    "acid",
    "cold",
    "fire",
    "lightning",
    "poison",
    "thunder"
  ],
  "senses": [
    "Truesight 150 ft."
  ],
  "source": "XMM",
  "passive": 12,
  "hasFluff": true,
  "hasToken": true,
  "miscTags": [
    "AOE",
    "MA",
    "RA",
    "RCH"
  ],
  "alignment": [
    "C",
    "N"
  ],
  "languages": [
    "Primordial"
  ],
  "legendary": [
    {
      "name": "Eruption",
      "entries": [
        "The cataclysm makes one Elemental Burst attack."
      ]
    },
    {
      "name": "Rumbling Movement",
      "entries": [
        "The cataclysm moves up to its {@variantrule Speed|XPHB}, {@variantrule Fly Speed|XPHB}, or {@variantrule Swim Speed|XPHB} without provoking {@action Opportunity Attack|XPHB|Opportunity Attacks}. Each creature within 5 feet of the cataclysm as it moves is targeted once by the following effect. {@actSave con} {@dc 23}. {@actSaveFail} The target has the {@condition Prone|XPHB} condition. {@actSaveSuccessOrFail} The cataclysm can't take this action again until the start of its next turn."
      ]
    }
  ],
  "senseTags": [
    "U"
  ],
  "traitTags": [
    "Legendary Resistances",
    "Siege Monster"
  ],
  "actionTags": [
    "Multiattack"
  ],
  "damageTags": [
    "A",
    "B",
    "C",
    "F",
    "L",
    "T"
  ],
  "initiative": {
    "proficiency": 2
  },
  "environment": [
    "planar, elemental chaos"
  ],
  "languageTags": [
    "P"
  ],
  "spellcasting": [
    {
      "name": "Control Weather",
      "type": "spellcasting",
      "will": [
        "{@spell Control Weather|XPHB}"
      ],
      "hidden": [
        "will"
      ],
      "ability": "con",
      "displayAs": "action",
      "headerEntries": [
        "The cataclysm casts the {@spell Control Weather|XPHB} spell, requiring no spell components and using Constitution as the spellcasting ability."
      ]
    }
  ],
  "hasFluffImages": true,
  "conditionImmune": [
    "blinded",
    "charmed",
    "deafened",
    "exhaustion",
    "frightened",
    "grappled",
    "paralyzed",
    "petrified",
    "poisoned",
    "prone",
    "restrained",
    "stunned",
    "unconscious"
  ],
  "conditionInflict": [
    "prone",
    "restrained"
  ],
  "spellcastingTags": [
    "O"
  ],
  "savingThrowForced": [
    "constitution",
    "dexterity",
    "strength"
  ]
}