Cranium Rat Squeaker Swarm

{
  "ac": [
    12
  ],
  "cr": "5",
  "hp": {
    "average": 76,
    "formula": "17d8"
  },
  "cha": 14,
  "con": 10,
  "dex": 14,
  "int": 15,
  "str": 9,
  "wis": 11,
  "name": "Cranium Rat Squeaker Swarm",
  "page": 22,
  "size": [
    "M"
  ],
  "type": {
    "type": "aberration",
    "swarmSize": "T"
  },
  "bonus": [
    {
      "name": "Illumination",
      "entries": [
        "The swarm sheds dim light from its brains in a 5-foot radius, increases the illumination to bright light in a 5- to 20-foot radius and dim light for an additional number of feet equal to the chosen radius, or extinguishes the light."
      ]
    }
  ],
  "speed": {
    "walk": 30
  },
  "trait": [
    {
      "name": "Psychic Messenger",
      "entries": [
        "The swarm can use its {@spell sending} spell to target someone familiar to a creature in telepathic contact with the swarm."
      ]
    },
    {
      "name": "Swarm",
      "entries": [
        "The swarm can occupy another creature's space and vice versa, and the swarm can move through any opening large enough for a Tiny rat. The swarm can't regain hit points or gain temporary hit points."
      ]
    },
    {
      "name": "Telepathic Shroud",
      "entries": [
        "The swarm is immune to any effect that would sense its emotions or read its thoughts, as well as to divination spells."
      ]
    }
  ],
  "__prop": "monster",
  "action": [
    {
      "name": "Bites",
      "entries": [
        "{@atk mw} {@hit 5} to hit, reach 0 ft., one target in the swarm's space. {@h}14 ({@damage 4d6}) piercing damage, or 7 ({@damage 2d6}) piercing damage if the swarm has half of its hit points or fewer, plus 22 ({@damage 5d8}) psychic damage."
      ]
    }
  ],
  "resist": [
    "bludgeoning",
    "piercing",
    "slashing"
  ],
  "senses": [
    "darkvision 30 ft."
  ],
  "source": "MPP",
  "passive": 10,
  "hasFluff": true,
  "hasToken": true,
  "miscTags": [
    "AOE",
    "MW"
  ],
  "alignment": [
    "N"
  ],
  "languages": [
    "telepathy 30 ft."
  ],
  "senseTags": [
    "D"
  ],
  "damageTags": [
    "P",
    "Y"
  ],
  "languageTags": [
    "TP"
  ],
  "spellcasting": [
    {
      "name": "Spellcasting (Psionics)",
      "type": "spellcasting",
      "will": [
        "{@spell command} *",
        "{@spell detect thoughts} *",
        "{@spell sending} *"
      ],
      "daily": {
        "1e": [
          "{@spell confusion} *",
          "{@spell dominate monster} *"
        ]
      },
      "ability": "int",
      "displayAs": "action",
      "footerEntries": [
        "*To cast this spell, the swarm must have more than half its hit points remaining."
      ],
      "headerEntries": [
        "The swarm casts one of the following spells, requiring no spell components and using Intelligence as the spellcasting ability (spell save {@dc 13}):"
      ]
    }
  ],
  "hasFluffImages": true,
  "alignmentPrefix": "typically ",
  "conditionImmune": [
    "charmed",
    "frightened",
    "grappled",
    "paralyzed",
    "petrified",
    "prone",
    "restrained",
    "stunned"
  ],
  "referenceSources": [
    "SatO",
    "ToFW"
  ],
  "spellcastingTags": [
    "P"
  ],
  "conditionInflictSpell": [
    "charmed",
    "prone"
  ],
  "savingThrowForcedSpell": [
    "wisdom"
  ]
}