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Bone Mastiff - AI-generated fantasy Monster

Bone Mastiff

Bone Mastiffs are not simply undead hounds. They are purpose-built guardians, formed from kennel bones, siege casualties, and the dust of collapsed crypt walls. Their makers shape them to remember pathways, patrol loops, and the scent of the living. In Bone Bastion, they are said to have been trained on the smell of rust, ink, and fear, which is why they so often defend storage pits full of old relics and war scrap.

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LargeUndead(undead)CR 3unaligned

Bone Mastiff

undeadbeastguarddungeonboneambushcontroller
HP60AC13SPD40 ft.CR3PerceptionStealth
STR
16
DEX
14
CON
16
save
INT
6
WIS
12
save
CHA
8
Keen Hearing and Smell. The mastiff has advantage on Wisdom (Perception) checks that rely on hearing or smell.
Pack Hunter. The mastiff has advantage on attack rolls against a creature if at least one of the mastiff's allies is within 5 feet of the creature and the ally isn't incapacitated.
Dust-Soaked Venom. When the mastiff hits a creature with its Chalkdust Snarl or Bone Rend, that creature has disadvantage on the next saving throw it makes against being frightened before the end of its next turn.
Bone Rend. Melee Weapon Attack: to hit, reach 5 ft., one target. Hit: 10 () piercing damage plus 3 () necrotic damage. If the target is a Large or smaller creature, it must succeed on a Strength saving throw or be knocked prone.
Chalkdust Snarl. The mastiff exhales a burst of bone dust in a 15-foot cone. Each creature in that area must make a Constitution saving throw, taking 10 () necrotic damage on a failed save, or half as much damage on a successful one. A creature that fails the save also cannot take reactions until the start of its next turn.
Interposing Houndsnap. When a creature the mastiff can see targets it with an attack, the mastiff imposes disadvantage on that attack if the attacker is within 5 feet of the mastiff and the mastiff is adjacent to an ally or a fresh bone growth wall. The mastiff must be able to move at least 5 feet toward the attacker on its next turn to use this reaction again.
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