Sea Horse

Source: Monster Manual p. 337. Available in the SRD and the Basic Rules (2014)

"name": "Sea Horse"
"size": "Tiny"
"type": "beast"
"alignment": "Unaligned"
"ac": !!int "11"
"hp": !!int "1"
"hit_dice": "1d4 - 1"
"modifier": !!int "1"
"stats":
  - !!int "1"
  - !!int "12"
  - !!int "8"
  - !!int "1"
  - !!int "10"
  - !!int "2"
"speed": "swim 20 ft."
"senses": "passive Perception 10"
"languages": ""
"cr": "0"
"traits":
  - "desc": "The sea horse can breathe only underwater."
    "name": "Water Breathing"
"source":
  - "MM"
"image": "/3-Mechanics/CLI/bestiary/beast/token/sea-horse.webp"