Runic Colossus

{
  "ac": [
    {
      "ac": 20,
      "from": [
        "natural armor"
      ]
    }
  ],
  "cr": "21",
  "hp": {
    "average": 315,
    "formula": "18d20 + 126"
  },
  "cha": 1,
  "con": 24,
  "dex": 9,
  "int": 3,
  "str": 25,
  "wis": 11,
  "name": "Runic Colossus",
  "page": 163,
  "size": [
    "G"
  ],
  "type": "construct",
  "speed": {
    "walk": 60
  },
  "trait": [
    {
      "name": "Immutable Form",
      "entries": [
        "The colossus is immune to any spell or effect that would alter its form."
      ]
    },
    {
      "name": "Magic Resistance",
      "entries": [
        "The colossus has advantage on saving throws against spells and other magical effects."
      ]
    },
    {
      "name": "Siege Monster",
      "entries": [
        "The colossus deals double damage to objects and structures."
      ]
    }
  ],
  "__prop": "monster",
  "action": [
    {
      "name": "Multiattack",
      "entries": [
        "The colossus makes two Slam attacks and then uses Stomp."
      ]
    },
    {
      "name": "Slam",
      "entries": [
        "{@atk mw} {@hit 14} to hit, reach 20 ft., one target. {@h}26 ({@damage 3d12 + 7}) bludgeoning damage."
      ]
    },
    {
      "name": "Stomp",
      "entries": [
        "{@atk mw} {@hit 14} to hit, reach 20 ft., one target. {@h}29 ({@damage 4d10 + 7}) bludgeoning damage. If the target is a Huge or smaller creature, it must succeed on a {@dc 22} Dexterity saving throw or have the {@condition prone} condition. Until the colossus uses its Stomp again or moves, the creature has the {@condition restrained} condition. The {@condition restrained} creature or another creature within 5 feet of it can use its action to make a {@dc 22} Strength check. On a successful check, the affected creature relocates to an unoccupied space of its choice within 5 feet of the colossus and is no longer {@condition restrained}."
      ]
    },
    {
      "name": "Arcane Beam {@recharge 5}",
      "entries": [
        "The colossus fires a beam of magical force from its chest, hands, or head in a 150-foot line that is 10 feet wide. Each creature in that area must make a {@dc 22} Dexterity saving throw, taking 58 ({@damage 9d12}) force damage on a failed save, or half as much damage on a successful one."
      ]
    }
  ],
  "immune": [
    "poison",
    "psychic",
    {
      "cond": true,
      "note": "from nonmagical attacks",
      "immune": [
        "bludgeoning",
        "piercing",
        "slashing"
      ]
    }
  ],
  "resist": [
    "acid",
    "cold",
    "fire",
    "lightning"
  ],
  "senses": [
    "darkvision 120 ft."
  ],
  "source": "BGG",
  "passive": 10,
  "hasFluff": true,
  "hasToken": true,
  "miscTags": [
    "AOE",
    "MW",
    "RCH"
  ],
  "reaction": [
    {
      "name": "Spell Reflection (2/Day)",
      "entries": [
        "{@atk rs} {@hit 14} to hit, range 120 ft., one creature casting a spell of 5th level or lower. {@h}26 ({@damage 4d12}) force damage, and the target must succeed on a {@dc 15} Intelligence saving throw or the spell fails and has no effect."
      ]
    }
  ],
  "alignment": [
    "U"
  ],
  "languages": [
    "understands Giant but can't speak"
  ],
  "senseTags": [
    "SD"
  ],
  "traitTags": [
    "Immutable Form",
    "Magic Resistance",
    "Siege Monster"
  ],
  "actionTags": [
    "Multiattack"
  ],
  "damageTags": [
    "B",
    "O"
  ],
  "languageTags": [
    "CS",
    "GI"
  ],
  "hasFluffImages": true,
  "conditionImmune": [
    "charmed",
    "exhaustion",
    "frightened",
    "paralyzed",
    "petrified",
    "poisoned"
  ],
  "savingThrowForced": [
    "dexterity",
    "intelligence"
  ]
}