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MastiffCR 1/8 · Medium Beast · Stat Block & Encounter Builder

Medium beast, Challenge 1/8. AC 12, 5 hit points.

Armour Class
12
Hit Points
5
Speed
40 ft.
Challenge
1/8 · 25 XP
Alignment
Unaligned

The card

Stat Block

Medium Beast · Unaligned

Mastiff

AC
12
HP
5
CR
1/8

1d8 + 1 · 40 ft.

passive Perception 13

Languages:

STRDEXCONINTWISCHA
13 (+1)14 (+2)12 (+1)3 (-4)12 (+1)7 (-2)

Traits

Keen Hearing and SmellThe mastiff has advantage on Wisdom (Perception) checks that rely on hearing or smell.

Actions

BiteMelee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 4 (1d6 + 1) piercing damage. If the target is a creature, it must succeed on a DC 11 Strength saving throw or be knocked prone.

How to actually run it

Tactics

The stat block tells you what it can do. This tells you what to do with it.

Pitch the fight

Encounter Difficulty

Encounter Builder

How bad is this fight?

Real DMG maths — XP thresholds by level, and the group multiplier that makes crowds so much worse than the raw total suggests.

Barely a speed bump — use it to burn resources, not time.

Difficulty

Trivial

200 adj. XP · ×2

deadly at 1,600

Build this Trivial encounter

Pre-filled · you press Generate

Counsel

Mastiff, Answered

What is Mastiff's challenge rating in D&D 5e?

Mastiff is Challenge 1/8, worth 25 XP. Encounter maths multiplies XP by the number of monsters, so a group is deadlier than the raw total — use the calculator on this page.

What are Mastiff's stats?

AC 12, 5 hit points (1d8 + 1), speed 40 ft.. Ability scores: STR 13, DEX 14, CON 12, INT 3, WIS 12, CHA 7.

Where does Mastiff fit in an encounter?

As a beast of Challenge 1/8, it suits a party whose level is in the same range. Adjust party size and level in the builder above to see the difficulty shift live.

Put It On The Table

Set your party, read the difficulty, and build the encounter around it. Your first is free.

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