Armor Class 17 (natural armor)
Hit Points 33 (6d8 + 6)
Speed 20 ft.
Damage Immunities poison
Condition Immunities charmed, exhaustion, frightened, paralyzed, petrified, poisoned
Senses darkvision 60 ft., passive Perception 7
Languages understands Dwarvish but can't speak
Challenge 2
Siege Monster. The hammerer deals double damage to objects and structures.
Multiattack. The hammerer makes one Claw attack and one Hammer attack.
Claw. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 6 (1d6 + 3) piercing damage.
Hammer. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 10 (2d6 + 3) bludgeoning damage.
Engine of Pain. Immediately after a creature within 5 feet of the hammerer hits it with an attack roll, the hammerer makes a Hammer attack against that creature.
Mordenkainen Presents: Monsters of the Multiverse, p. 112