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Swarm of Bats

CreatureMMp. 3372014SRD

Medium beast, unaligned

Armor Class
12
Hit Points
22 (5d8)
Speed
fly 30 ft., 0 ft.
Challenge
1/4 (50 XP)
STR
5
-3
DEX
15
+2
CON
10
+0
INT
2
-4
WIS
12
+1
CHA
4
-3
Damage Resistances
bludgeoning; piercing; slashing
Condition Immunities
charmed; frightened; grappled; paralyzed; petrified; prone; restrained; stunned
Senses
blindsight 60 ft., passive Perception 11

Traits

Echolocation.

The swarm can't use its blindsight while deafened.

Keen Hearing.

The swarm has advantage on Wisdom (Perception) checks that rely on hearing.

Swarm.

The swarm can occupy another creature's space and vice versa, and the swarm can move through any opening large enough for a Tiny bat. The swarm can't regain hit points or gain temporary hit points.

Actions

Bites.

Melee Weapon Attack: +4 to hit, reach 0 ft., one creature in the swarm's space. Hit: 5 (2d4) piercing damage, or 2 (1d4) piercing damage if the swarm has half of its hit points or fewer.

Raw data
{
  "ac": [
    12
  ],
  "cr": "1/4",
  "hp": {
    "average": 22,
    "formula": "5d8"
  },
  "cha": 4,
  "con": 10,
  "dex": 15,
  "int": 2,
  "srd": true,
  "str": 5,
  "wis": 12,
  "name": "Swarm of Bats",
  "page": 337,
  "size": [
    "M"
  ],
  "type": {
    "type": "beast",
    "swarmSize": "T"
  },
  "speed": {
    "fly": 30,
    "walk": 0
  },
  "trait": [
    {
      "name": "Echolocation",
      "entries": [
        "The swarm can't use its blindsight while {@condition deafened}."
      ]
    },
    {
      "name": "Keen Hearing",
      "entries": [
        "The swarm has advantage on Wisdom ({@skill Perception}) checks that rely on hearing."
      ]
    },
    {
      "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 bat. The swarm can't regain hit points or gain temporary hit points."
      ]
    }
  ],
  "__prop": "monster",
  "action": [
    {
      "name": "Bites",
      "entries": [
        "{@atk mw} {@hit 4} to hit, reach 0 ft., one creature in the swarm's space. {@h}5 ({@damage 2d4}) piercing damage, or 2 ({@damage 1d4}) piercing damage if the swarm has half of its hit points or fewer."
      ]
    }
  ],
  "resist": [
    "bludgeoning",
    "piercing",
    "slashing"
  ],
  "senses": [
    "blindsight 60 ft."
  ],
  "source": "MM",
  "passive": 11,
  "hasFluff": true,
  "hasToken": true,
  "miscTags": [
    "MW"
  ],
  "alignment": [
    "U"
  ],
  "senseTags": [
    "B"
  ],
  "soundClip": {
    "path": "bestiary/swarm-of-bats.opus",
    "type": "internal"
  },
  "traitTags": [
    "Keen Senses"
  ],
  "basicRules": true,
  "damageTags": [
    "P"
  ],
  "environment": [
    "underdark",
    "mountain",
    "hill",
    "urban"
  ],
  "reprintedAs": [
    "Swarm of Bats|XMM"
  ],
  "hasFluffImages": true,
  "conditionImmune": [
    "charmed",
    "frightened",
    "grappled",
    "paralyzed",
    "petrified",
    "prone",
    "restrained",
    "stunned"
  ],
  "referenceSources": [
    "AATM",
    "CM",
    "CoS",
    "DitLCoT",
    "EGW",
    "FS",
    "HotDQ",
    "LLK",
    "OotA",
    "PotA",
    "QftIS",
    "TftYP",
    "TftYP-THSoT",
    "ToA",
    "WBtW",
    "WDH",
    "WDMM"
  ]
}