Bat

Source: Monster Manual p. 318. Available in the SRD and the Basic Rules (2014)

"name": "Bat"
"size": "Tiny"
"type": "beast"
"alignment": "Unaligned"
"ac": !!int "12"
"hp": !!int "1"
"hit_dice": "1d4 - 1"
"modifier": !!int "2"
"stats":
  - !!int "2"
  - !!int "15"
  - !!int "8"
  - !!int "2"
  - !!int "12"
  - !!int "4"
"speed": "5 ft., fly 30 ft."
"senses": "blindsight 60 ft., passive Perception 11"
"languages": ""
"cr": "0"
"traits":
  - "desc": "The bat can't use its blindsight while deafened."
    "name": "Echolocation"
  - "desc": "The bat has advantage on Wisdom (Perception) checks that rely on hearing."
    "name": "Keen Hearing"
"actions":
  - "desc": "*Melee Weapon Attack:* +0 to hit, reach 5 ft., one creature. *Hit:* 1\
      \ piercing damage."
    "name": "Bite"
"source":
  - "MM"
"image": "/3-Mechanics/CLI/bestiary/beast/token/bat.webp"