# [Mastiff](Mechanics\CLI\bestiary\beast/mastiff-xmm.md)
*Source: Monster Manual (2024) p. 365, Player's Handbook (2024) p. 353. Available in the <span title='Systems Reference Document (5.2)'>SRD</span> and the Free Rules (2024)*
## Animals
Use these stat blocks to represent the creatures they're named for or other similar creatures. For example, the [Panther](Mechanics/CLI/bestiary/beast/panther-xmm.md) stat block can also represent a mountain lion, while the [Giant Goat](Mechanics/CLI/bestiary/beast/giant-goat-xmm.md) stat block might represent a buffalo. Any of these stat blocks might also serve as fantastical animals with distinctive names and cosmetic details unique to your D&D adventures.
```statblock
"name": "Mastiff (XMM)"
"size": "Medium"
"type": "beast"
"alignment": "Unaligned"
"ac": !!int "12"
"hp": !!int "5"
"hit_dice": "1d8 + 1"
"modifier": !!int "2"
"stats":
- !!int "13"
- !!int "14"
- !!int "12"
- !!int "3"
- !!int "12"
- !!int "7"
"speed": "40 ft."
"skillsaves":
- "name": "[Perception](Mechanics/CLI/rules/skills.md#Perception)"
"desc": "+5"
"senses": "darkvision 60 ft., passive Perception 15"
"languages": ""
"cr": "1/8"
"actions":
- "desc": "Melee Attack Roll: +3, reach 5 ft. Hit: 4 (1d6 + 1) Piercing\
\ damage. If the target is a Medium or smaller creature, it has the [Prone](Mechanics/CLI/rules/conditions.md#Prone)\
\ condition."
"name": "Bite"
"source":
- "XMM"
- "XPHB"
"image": "Mechanics/CLI/bestiary/beast/token/mastiff-xmm.webp"
```
^statblock
## Environment
forest, hill, urban