Acid Shambler

Medium undead, neutral evil

12 (+1) 12 (+1) 14 (+2) 6 (-2) 4 (-3) 6 (-2)

Armor Class 11
Hit Points 13 (2d8 + 4)
Speed 30 ft.
Damage Immunities acid, fire, poison
Condition Immunities charmed, frightened, exhaustion, poisoned, stunned
Senses passive Perception 7
Languages Understands one common language of choice but cannot speak
Challenge 1 (200 XP)

Special Traits

  • Acidic Blood. Any non-magical weapon or tool that strikes the acid shambler corrodes. After dealing damage, the weapon takes a permanent and cumulative -1 penalty to damage rolls. If its penalty drops to -5, the weapon is destroyed. Nonmagical ammunition made of metal that hits the acid shambler is destroyed after dealing damage.


  • Multiattack. The acid shambler makes two claw attacks.
  • Acidic vomit (1/day). The acid shambler vomits blood in a 15-foot line that is 5 feet wide. All creatures within the area of effect must succeed on a DC 12 Dexterity save or suffer 7 (2d6) acid damage (half damage with a successful save).
  • Claw. Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 3 (1d4 + 1) slashing damage, plus the target must succeed at a DC 11 Dexterity save or suffer an additional 3 (1d6) acid damage.


Acid shamblers lash out, without hesitation or desire for survival, at all living creatures they encounter. Driven by pain and hatred of what they have become, these creatures are mindless killers, and the fact that they often travel in packs makes them exceedingly dangerous to unprepared or ill-equipped opponents. They will use their acidic vomit whenever they can attack two or more creatures.


Acid shamblers are bloated undead who wander the land looking for living creatures to vent their pain and suffering on. Their acidic blood constantly degrades their corpses, resulting in weeping sores or bloody acid, softened bones and tissue that hangs in loops, and a sharply tinged foul smell.

Acidic Blood. The shamblers are corpses brought back to horrific, agonizing life by a strange transformation of their blood. The thick reddish-black ichor that surges through their dead veins both animates and deteriorates them from the inside out due to its highly acidic properties. Because of the acid shamblers’ transformation, their limited existence generally lasts only a number of days before the acid destroys them. Even well armed soldiers have fallen as the shamblers’ corrosive blood eats away at the toughest swords and armor with frightening speed.

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